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Jabatan pelajaran perak
Module 1(Labelling)
SCIENCE FORM 1
NAME: _____________________________________________
FORM:____________________________________________________
1.1 INTRODUCTION TO SCIENCE
1. i) Name the following apparatus with the word given.
Retort stand Measuring cylinder Bunsen burner Conical flask
ii)
iii)
iv)
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Burette Round bottomed flask Test tube Gas jar
External calipers Pipette Burette Internal calipers
a.. b. c. d.
e. f. g.
h.
i .j. k.
l.
v)
b) Draw lines to show the correct match between the apparatus and their functions
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Filter funnel Stop watch Spring balance Level balance
Stethoscope Opisometer Thermometer Hand lens
Name the apparatus Function
m. n.. o. p.
q. r. s.. t.
2. Give the function of apparatus below.
i) Pipette:
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B. To measure the volume of a liquid
A. To measure the weight of an object
1.Beaker
2.Measuring cylinder
3.Gas jar
4.Spring balance
C. To contain liquid and chemicals
D. To measure temperature
E. To collect gases5.Thermometer
6.Pipette F. To measure fixed volume of liquid
…………………………………………………………………………………..
…………………………………………………………………………………...
ii) Thermometer:
…………………………………………………………………………………..
…………………………………………………………………………………..
iii) Measuring cylinder :
…………………………………………………………………………………..
…………………………………………………………………………………...
iv) Gas jar
…………………………………………………………………………………..
…………………………………………………………………………………..
v) Spring balance
…………………………………………………………………………………..
…………………………………………………………………………………...
vi) Thermometer:
…………………………………………………………………………………..
…………………………………………………………………………………..
3. Name the apparatus below.
i) ii)
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iii) iv)
v) vi)
4. Diagram 4 shows a thermometer.
a) What is the reading of the thermometer?
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……………………………………………
b) Name liquid P
P: …………………………..
30
c) Put a ( / ) in the correct box on the figure to show the correct eye when taking a reading?
1.2 CELL AS THE BASIC UNIT OF LIFE
1.Name the parts of microscope.
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P
40
a) Draw lines to show the correct match between the part of the microscope and its function.
uestion
Questions
2. (i) What is the function of eyepiece?
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PART FUNCTION
T
S
R
P
Q
1.Hold the objective lenses
2.Regulates the amount of light reaching the objective lens
3.Holds the eye piece
4.The lens that magnifies the specimen
5.Reflects light into the microscope
Q
P
T
U
V
W
U 6.Platform where the slide is placed
V
W
7.Control the height of the microscope tube with more accurately
8.Control the height of the microscope tube for focusing
R
S
…………………………………………………………………………………….
(ii) What is the function of stage?
…………………………………………………………………………………… .
(iii) What is the function of mirror?
…………………………………………………………………………………… .
(iv) What is the function of objective lens?
…………………………………………………………………………………… .
(v). What is the function of coarse focus knob?
…………………………………………………………………………………… (vi). What is the function of fine focus knob?
……………………………………………………………………………………
Cell as a unit of life
3. Diagram 3 shows an animal cell.
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Nucleus Cell membrane Cytoplasm
P
R
Q
Diagram 3
4. Diagram 4 shows a plant cell
Diagram 4
Label each part of the cell with a suitable word from the following list.
5 Diagram 5 shows the structure of a cell.
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D
E
F
A
B
C
Cell membrane Cytoplasm Chloroplast Nucleus Vacuole cell wall
S
T
P
Q U
R
Diagram 5
Match the labeled cell structures to their names and functions.
Cell structure Name Function P Nucleus Maintains the shape of cell
Q Cell membrane Controls all cell activities
R Cytoplasm Absorb sunlight for photosynthesis S Chloroplast Stores water and dissolved minerals T Cell wall Site of chemical processes U Vacuole Control the movement of Substances in and out of The cell
UNICELLULAR AND MULITICELLULAR
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6. a) Name the organisms shown in Diagram 6.
P : ___________________ Q : ____________________
R : __________________ S : _____________________
Diagram 6
b) Group the organisms in Diagram 6 into unicellular or multicellular organisms
Unicellular Multicellular
i ______________________
ii ______________________
i __________________________
ii _________________________
Cell organisation
7. Match the name to the correct part of the cell organisation in human.
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Name Part of cell organisation
Cell
System
Tissue
Organ
8. Show the organisation of cells in the human body by filling in the boxes below with the words given.
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P
Q
S
System tissue organ cell organism
e
Made up of different systems that work d together
Made up of c different organs made up of different tissues b
made up of a the same type of cells the basic unit
1.3 MATTER
1. Classify the following matter into solids, liquids or gasesa) e)
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_____________ _______________ f) ` b)
______________ g)
___________________
c)
__________________ h) d)
___________________ _________________
2) Match objects/substances below to their arrangement of particles
a) glue
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hot water
Air in theballoon
Hot airballoon
Carbon monoxide
Wind from windmill
aeroplane
kerosene
b) coffee
c) smoke i d) breeze
e) mercury f) blood ii.g) book
h) steam
i) oxygen
j) rainwater iii.
k) thumbtack
l) cloth
m) droplets
n) salt solution
1.4 THE VARIETY OF RESOURCES ON EARTH
THE CONCEPT OF DENSITY
The density of substance is the mass of the substance in a unit volume.
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i
The unit for density is kg/m³ or g/cm³
DENSITY (D) = MASS (M) VOLUME (V)
1. What is ………… Ma. D = _______
D V V = _________
Example 1
The mass of 5cm³ of iron is 10.0g. What is its density?
The density of iron = Mass Volume
= 10.0g 5cm³ = 2 g/cm³
2.The mass of an object is 30 g. What is its density if it has a volume of 12 cm³ ?
3.The volume of R was determined to be 40cm³ in an experiment. If the density of solid R is 0.5 g/cm³. What is its mass?
4.The mass of piece of stone is 360g and its volume is 200cm³. What is the density of the stone?
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A less dense substance FLOATS in a denser liquidWhereas a denser substance SINKS in a less denser
liquid
STONE WATER OIL CORK
5. The substances are put together according to a, b, c, and d. Draw the position.
a. Stone and Water b. Water and oil
.
c. Cork , water and oil d. Stone, water ,oil and Cork
6. Diagram 6 shows the densities of liquids Z, Y and X and solids P, Q and R which are put into a measuring cylinder.
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a. Arrange the density of liquid X, Y and Z in an ascending order?
b. Arrange the density of liquid X, Y and Z in a descending order?
c. Arrange the solids P, Q and R in an ascending order?
d. Arrange the solids P, Q and R in a descending order?
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e. Arrange P,Q, R , X, Y and Z in an ascending order?
f . Arrange P, Q ,R , X, Y and Z, in a descending order?
7. Diagram 7 shows the arrangement of particles in three substances, J, K and L. Label J, K and L using the following words:
8. Draw lines to show the correct match between the names of the substances and the diagrams.
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Element Compound Mixture
J K L
E_ _ _ _ _ t C _m_ _ und M _ x t _ _ e
1.5 THE AIR AROUND US
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Compound
Mixture
Element
1. Diagram 1 shows the composition and percentage of the constituents of air.
Diagram 1
a) Identify the following gases based on Diagram 1
Nitrogen Oxygen Carbon dioxide
i. Gas A : ___________________________
ii Gas B : ____________________________
iii Gas C : _____________________________
b) State the confirmation test for the gases below :
i) Gas B : _______________________________________________
_______________________________________________
ii) Gas C : ________________________________________________ _________________________________________________
1.6 SOURCES OF ENERGY
1. State the forms of energy involved in the picture shown using the following word
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A 78%
B 21%
D 1%
C 0.03%
Chemical energy Sound energy Kinetic energy Nuclear energy Light energyHeat energy
a) b) c)
d)
e) f)
g) h) i)
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DIAGRAM 1.12. Diagram 2 shows various sources of energy on earth
Diagram 2 Name the energy sources that represented by
A : ..................................................................................
B : ..................................................................................
C: ...................................................................................
D : .................................................................................. E : ……………………………………………………………
F :……………………………………………………………
G :……………………………………………………………
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C D
C
DE F
G
1.7 HEAT
1. On diagram 1, draw and label the heat flow of sea breeze and land breeze using the given information.
Land breeze
Sea breeze
Diagram 1
2. The change of state of matter involves absorption or release of heat energy.
a) Draw the particles arrangement of ice when heated
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Land
Hot air
b. …………..
Hot air rises cool air from the sea hot air from land
______a. ……………….....
c………………..
Sea breeze
Before heating After heating
b) Draw the particles arrangement of ice when melted
Before melting After melting
c) Draw the particles arrangement of water when frozen
Before freezing After freezing
d) Draw the particles arrangement of water when boiled
Before boiling After boiling
e) Draw the particles arrangement of water when cooled
Before cooling After cooling
f) Draw the particles arrangement of iodine crystals when heated
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Before sublimation After sublimationg) Draw the particles arrangement of steam when cooled
Before condensation After condensation
h) Draw the particles arrangement of water when evaporated
Before evaporation After evaporation
5. Draw the particles of X, Y and Z in the box given.
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YX Z
2.1 THE WORLD THROUGH OUR SENSESa. SKIN
1. Label each part of the skin with a suitable word from the following list.
b. NOSE2. Label the part of the human nose with the following words.
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Heat receptor Epidermis Cold receptor Hair Fat layer Dermis Pain receptor Sweat gland Touch receptor Pressure receptor
e
b
h
g
c
d
f
a
i
1.Nostril 2.Nasal Cavity 3.Receptor Cell
A
j
B
C
3. (a) State the stimulatory reaction in the nose using the words given below :
3(b) Match the different parts in the nose their function i
ii
iii
iv
v
c. TONGUE
4. Label each part P, Q, R and S using the following words.
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Smell Smell receptor Impulse
Impulse
Brain Analysis Dissolved in mucus Response
1
234
Sweet Sour Bitter Salty
Smell
Mucus
Receptors
Brain
Detection
A Smell is good/bad
B Analyses messages and gives the appropriate response
C Chemicals in the air stimulate the nose
D Dissolve the chemicals in the air
E Send messages to the brain about stimulus
P
(i) The tongue is covered with many tiny structures called the ____________(ii) The taste buds are able to detect the taste of the food if the food can
dissolve in ______________
HUMAN EAR 5. The diagram below shows the cross section of a human ear. Label the t parts using the word given in the box.
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Pinna Ear canal Eardrum Ossicles
Oval windows Semicircular canal cochlea Eustachian tube
A B C D
Q
R
S
6. Match the different parts in the ear to their functions
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EH G F
Eardrum Balance the air pressure on both sides of the eardrum
Pinna
Ossicles
Cochlea
Eustachian tube
Oval window
Auditory nerve
Transfers the vibration from the ossicles to the cochlea
Detect the vibration and converts them into nerve impulse
Send the messages to the brain
Collect and directs sound waves (vibrating air) into the auditory canal
It vibrates at the same frequency as the sound waves and transfer vibration to the ossicle
Amplified the vibration and transfer vibrations to the ossicles
P
Q
R
S
T
I
II
III
IV
V
7. State the functions of these structures in the ear
(a) Eardrum :___________________________________________
___________________________________________
(b) Ossicles :___________________________________________
___________________________________________
(c) Pinna :___________________________________________
___________________________________________
(d) Cochlea :___________________________________________
___________________________________________
(e) Eustachian tube :___________________________________________
___________________________________________
(f) Auditory nerve :___________________________________________
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U
V
VI
VII
__________________________________________
(g) Oval window :__________________________________________
_______________________________________________
EYE
8. The diagram shows the human eye. Label structures P, Q, R, S and T using the following words:
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Cornea Iris Retina
Pupil Lens
P:
T:
Q:
R:
S:
9. Draw lines to show the correct match between the structures and their functions.
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PART FUNCTION
P
S
Q
R
T
i. Controls amount of light entering the eye
ii. Helps to focus the light on the retina
iii. Focuses the light to form an image on the retina
iv. Controls the size of the pupil
v. Receives light stimuli and changes the stimuli to nerve impulses
10. State the function of the following stuctures:
Cornea………………………………………………………………………………
Iris………………………………………………………………………………
Pupil………………………………………………………………………………
Retina………………………………………………………………………………
Lens………………………………………………………………………………
11. Fill in the blank using words given in the box.
1 The ………………………… receives light stimuli and changes the stimuli to nerve impulses
2 The …………………………. helps to focus the light on to the retina
3 The …………………………. focuses the light to form an image on the retina.
4 The …………………………. controls the size of the pupil
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Cornea Iris Retina
Pupil Lens
5 The ………………………….controls amount of light entering the eye
2.2 NUTRITION
HUMAN DIGESTIVE SYSTEM
1. Label the parts of the human digestive system in the following words.
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E
B
F
I
H
G
D
C
A
Liver Small intestine Gall bladder Pancreas Large intestine
Oesophagus Stomach Mouth Salivary glands
HUMAN DIGESTIVE SYSTEM
2. Draw lines to show the correct match between the structures and their functionsDraw the lines as shown below
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D
E
G
I
iii Produces digestive enzymes such as amylase, protease and lipase
ii Channels food to the stomach. This action is called peristalsis
C i Produces bile
iv Digestion of fat, protein and starch and absorption of food
v Digestion of protein begins
HUMAN DIGESTIVE SYSTEM
3. Fill in the blanks with suitable words in the box.
1. The enzyme in saliva, _____________________ breaks down the starch molecules into maltose
2. The stomach secretes gastric juice which contains _______________ and _________________ digestion of proteins
3. Bile is produced by __________________ and kept in the ___________
4. What are the end products of digestion of
a) Carbohydrates ? __________________
b) Proteins? ________________________
c) Fats? _______________________
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Fatty acids and glycerol, salivary amylase, liver, glucose, protease, gall bladder, amino acids, dilute hydrochloric acid,
2.3 INTERDEPENDENCE AMONG LIVING ORGANISMS IN THE ENVIRONMENT
CLASSIFICATION OF ANIMALS AND PLANTS
1. Fill in the blanks using the words given
a)
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Plants
Flowering i
ii
v viiv
iii
Fungi
Fish, Monocotyledons, Amphibians, Mosses, Non-flowering, Dicotyledons,
Fern, Algae, Mammals. Birds, Reptiles, Amphibians ,Birds, Reptiles, Mammals,
b)
c)
CLASSIFICATION
2. Based on your observation state one characteristic of each organism.
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Vertebrates
i iiFish
iii iv
Vertebrates
Warm-blooded Cold-blooded
i
iv viii
ii
ab
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c d
e f
g h
i j
k i
l i
3. Classify the organisms into two groups based on their common characteristics
P Q R S
Common aa
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m i
n
O P
a b
characteristics
Letter of The organisms
CLASSIFICATION OF PLANTS
4. The diagram shows the flowering plants. Label structure P, Q, R, S, T, U, A, B, C, D and E using the following words
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i ii
P
Q
R
S
DICOTYLEDONS
fibrous root, tap root, one cotyledon, two cotyledons, network of veins, parallel veins, soft and non woody, hard and woody, flower parts in threes, flower parts in fours or fives
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T
MONOCOTYLEDONS
A
B
C
D
E
5. Draw lines to show the correct match between the phrase and explanation on Interdependence among living organism.
Draw the lines as shown below
PHRASE EXPLANATION
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Population C
Species B
Community D
Environment E
iii Different communities interact with with one another and their environment in a habitat
ii Made up of living and non-living components
Habitat A i A group of similar living organisms
iv The natural home of an organism where it lives and reproduces
v A group of individuals of the same species that live and reproduce in a habitat at the same time.
Ecosystem F
vii Made up of different populations of organisms living together and interacting with one another in the same habitat
FOOD WEB
6. Fill in the blanks using the words from the following list
1. ______________ are living organisms that are able to make their own food
2. __________ are living organisms that are not able to make their own food
3. ______________are living organisms that feed on the remains of dead organisms
4. ____________________ is a network of interconnected food chains
5. __________________shows the food relationship among living organism
6. _____________________ shows the different number of organisms in a food chain.
TYPES OF INTERACTIONS BETWEEN LIVING ORGANISMS
7 Use letters to complete the phrase on types of interaction between living organisms
C__ MM__NS__LISM
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Food Chain, Producer, Consumer, Decomposer,Food web, Pyramid of Number
P__ RA__ITI_M
CO__P___TI __IO__
PHOTOSYNTHESIS
Photosynthesis is the process in which green plants use light to produce food.
8. Write the word equation for photosynthesis.
c
+ d +
2.4 WATER AND SOLUTION
Physical characteristics of water
1. Diagram 1 shows the changes in the state of water.
Diagram 1
On diagram 1, label P, Q, R, S and T using the following words.
Fill in the blank using the word from the box given.
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carbon dioxide , oxygen water , glucose , sunlight, chlorophyll
a
b fe
Freezing Liquid Solid Boiling Gas
R: S: T:
P: Q:
solid
7
liquid
three
colourless
freezes1
gas
( a ) Water can exist in …………………………… states.
( b ) An ice cube is water in the ………………… state.
( c ) Steam is water in the ……………………. state.
( d ) We drink water in the ………………….. state.
(e ) Liquid water …………………. to form ice.
( f ) Water is …………………. tasteless and neutral.
( g ) The pH value of pure water is ……………
( h ) The density of water is ……………… g/cm3
The composition of water2. Diagram 2 shows the electrolysis of water.
On
Diagram 2
On diagram 2, fill in the blanks using the following words.
Solution and Solubility
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Cathode Hydrogen Oxygen positive Anode water Sulphuric acid negative
The…………is the electrode that is connectedto the…………terminal of a battery.
The ………….. is the electrode that is connected to the……………terminal of a battery
………………..gas is discharged
……………… gas is discharged
………………+ dilute ………….………………
3. Diagram 3 shows the process of making a solution.
Diagram 34. Diagram 4 shows the making of a cup of hot coffee.
Hotwater
Diagram 4
Based on diagram 4, determine the solute, solvent and solution in the hot coffee.
a. Solute : ……………………………
b. Solvent : ……………………………
c. Solution: ……………………………
5. Diagram 5 shows three beakers containing solutions and their types .
P
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SATURATED SOLUTION
x
yz
Solute Solvent Solution
Hot coffee
sugar
Black coffee
Q
Diagram 5 RDraw lines to show the correct match between the solution in the beakers and their types. Methods of water purification
6. Diagram 6 shows methods of purification.
…………………………… ……………………………………
Diagram 6
On figure 6, name the method and label the apparatus used for each picture using the following words.
2.5 SIMPLE MACHINE
1. Diagram 1 shows a first class lever.
Label J, K and L using the following words:
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DILUTE SOLUTION
CONCENTRATED SOLUTION
Filter funnel Thermometer Measuring cylinder
Distillation Round bottom flask Conical flask Filtration
a
b
d
e
c
Effort Fulcrum Load
2. Diagram 2 shows a second class lever.
Label P, Q and R using the following words:
3. Diagram 3 shows a third class lever.
Label X, Y and Z using the following words:
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Diagram 1
K:
J:
L:
Diagram 2
Effort Fulcrum Load
Effort Fulcrum Load
P:
Q:
R:Wheelbarrow
X:
Z:
Y:
Ice tongs
4. Draw lines to show the correct match between the classes of levers and the simple machines.
5. Fill in the blanks using words given in the box.
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Diagram 3
first second third
X
Y
Z
CLASS OF LEVER SIMPLE MACHINE
First class
Second class
Third class
stapler
scissors
nutcracker
1 A stapler is an example of the ………………………………class lever.
2 A scissors is an example of the …………………………….class lever.
3 A nutcracker is an example of the ………………………….class lever.
4 A wheelbarrow is an example of the ……………………….class lever.
5 An ice tongs is an example of the …………………………class lever.
3.1 RESPIRATION
THE STRUCTURE OF THE HUMAN RESPIRATORY SYSTEM
1 Label the structure of human respiratory system using the words given.
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trachea bronchus alveolus bronchiole lung
rib cage intercostal muscles nasal cavity diaphragm
A
B
C
E
D
F
G
H
I
2 Fill in the blank using the words given.
i ) The lungs are protected by _________________________.
ii ) ____________________________ moves the ribs up and down
during respiration.
iii ) Our body takes in _________________________ and releases
___________________________ when breathing.
iv ) The process of taking in oxygen into the lungs is known as
___________________________.
v ) The process of releasing out carbon dioxide from the lungs is known as
___________________________.
vi ) Alveolus are surrounded by ____________________________.
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Exhalation Blood capillaries Rib cage Oxygen
Intercostal muscles Carbon dioxide Inhalation
3.2 BLOOD CIRCULATION AND TRANSPORT
1 Label the structure of human heart using the words given.
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Aorta Left ventricle Vena cava
Right atrium Pulmonary vein Left atrium
Right ventricle Pulmonary artery
i.
ii.
iii.
iv.
v.vi.
vii.
viii.
2 State the characteristic of blood vessels and their functions based on the diagram given.
ARTERY VEIN CAPILLARY
Blood vessel Thickness of wall Size of lumen
a. Artery i. ii.
b. Vein iii. iv.
3 Match A and B correctly
A B
i.
ii.
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small
thick thin
big
VEIN
ARTERY
HEART
OXYGENATEDBLOOD
Muscular organ that pumpblood
Bright red blood
Blood vessel thathave thin wall
Blood vessel that have thick wall
a
b
c
d
iii.
4. Label the diagram using the words given
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Aorta Left atrium Right atrium
Left ventricle Right ventricle vena cava
Pulmonary vein Pulmonary artery
i
ii
iii
iv
vii
vi
v
viii
3.3 EXCRETION
1 Mark √ in the box given showing the human excretory organ.
i.
ii.
iii.
iv.
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v.
2. Complete the chart about excretory product using the words given from the following list.
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Human excretoryorgans
SKIN
LUNGS
KIDNEY
WATER UREA CARBON DIOXIDE
i.
ii.
iii.
3. Match the organ to the name correctly.
i
ii.
iii.
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SKIN
LUNGS
KIDNEY
Human Urinary System
4. Label the diagram using the given words
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Ureter Kidney Urethra Urinary bladder
d
e
f
5. Label the diagram using the words given
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g
Lung Liver Kidney
a
b
c
6. Label the diagram using the words given .
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Medula Pelvis Ureter Cortex
a
c
d
b
3.4 REPRODUCTION
Male Reproductive System
1. Label the diagram using the words given below
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Scrotum Penis Testis
Sperm duct Seminal vesicle Urethra
iv
v
ii
i
iiivi
Female Reproductive System
2. Label the diagram using the words given
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Ovary Cervix Uterus
Vagina Fallopian tube
d
e
a
b
c
Structure of flower
3. Label the diagram using the word given below
Female
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Stigma Anther Ovary
Style Ovule Filament
d
e
a
b
fc
Female Reproductive Parts of Flower
4. Label the diagram using the words given.
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Style Stigma Ovary Ovule
a
b
cd
Seed
5. Label the diagram using the words given below
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Testa Plumule Radicle Cotyledon
a
cb
d
3.5 LAND AND ITS RESOURCES
1. List the example of compounds to the type correctly. An example has been done for you.
* Zink oxide * Calcium carbonate
* Lead sulphide * Aluminium oxide
* Iron sulphide * Magnesium carbonate
* Calcium oxide * Copper carbonate
Types of compound Example Natural compounds
Oxide 1. Zink oxide 2. 3.
Sulphide 1. 2.
Carbonate 1. 2. 3.
2. Group the elements into metals and non-metals
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Silver Nitrogen Sulphur
Oxygen Gold Iron
Tin Carbon Copper Cork
ELEMENT
MET AL NON- METAL
1. ________________ 1. ________________
2. ________________ 2. ________________
3. ________________ 3. ________________
4. ________________ 4. ________________
5. ________________ 5. ________________
3 . Classify the uses to the correct compounds
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* Making glass
* Neutralising acidic soil
* Testing the presence of carbon dioxide
* Making quicklime ( calcium oxide )
* Making plaster
* Making whitewash
Calcium carbonate
1. _________________
2. _________________
Calcium oxide
1. _________________
4.
Complete the following to show the of fraction of petroleum which are obtained by fractional distillation and their uses
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Calcium hydroxide
1. __________________
2. __________________
Calcium hydroxide solution
1. __________________
petroleum gas petrol kerosene diesel lubricating oil fuel oil bitumen
Petroleum vapour
product
1
2
3
4
5
7
6
Match user
a
b
c
d
e
f
g
3.6 ELECTRICITY
1 . Match the symbols and the names of components
SYMBOL COMPONENT i.
ii.
iii.
iv.
v.
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A
V c. Dry cell
a. Volt meter
b. Bulb
e. Switch
d. Ammeter
2 . Label the structure of a 3 pin plug using the words given
3. Label the circuit using the words given
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Live wire Earth wire Neutral wire Fuse
i.
ii.
iii.iv.
i.
ii
iii
iv
BULB, AMMETER, VOLTMETER, BATTERY
4. Complete the sentence using the word from the following list
A .
1. Turn off the ___________________________ of an electrical appliances when it is no longer in use.
2. Avoid ___________________________ the refrigerator door frequently.
3. Use the washing machine to wash a large ______________________
of clothes.
4. Replace _______________________ powered electrical appliances with
_________________________ powered electrical appliances.
5. Iron __________________________ clothes at a time
B
1. Different _______________________ appliances convert electrical energy at different rate.
2. The electrical energy used depends on the ____________________
and ___________________________ of the appliances.
3. ______________________ meter measures the total amount of
of energy used.
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Many High, Low Quantity Opening Switch
kilowatt-hour Joule power voltage ratings electrical
4. In Malaysia, Tenaga Nasional Berhad ( TNB ) uses the _______________
to calculate the amount of energy used.
3.7 GENERATION OF ELECTRICITY
1.
Type of generator : …………………………………………………………
Energy source : …………………………………………………………
Energy conversion : ………………………………………………………...
2.
Type of generator : …………………………………………………………
Energy source : …………………………………………………………
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Energy conversion : ………………………………………………………...
3.. Electrical power transmission and distribution system.
W: ………………………………………………….
X: …………………………………………………..
Y: …………………………………………………..
Z: …………………………………………………..
4. Transformer
■ ■
■ ■
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W Z
Step up transformer
Step down transformer
3.8: STARS AND GALAXIES
A. Structure of the Sun's atmosphere.
P: ………………………………………………………………..
Q: ………………………………………………………………..
R: ………………………………………………………………..
S: ………………………………………………………………..
T: ………………………………………………………………..
U: ………………………………………………………………..
B. The birth and death of a star
P: ………………………………………………………………..
Q: ………………………………………………………………..
R: ………………………………………………………………..
S: ………………………………………………………………..
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SRQP supergiantstar sized big
3.9: SPACE EXPLORATION
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■ Satelite
■ Space probe
■ Space station
■ Rocket
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