week 5-day 1. obj 1 what is the most useful tool in identifying the wavelengths of visible light?

Week 5-Day 1

OBJ 1

What is the most useful tool inidentifying the wavelengths of visible light?

OBJ 1

What is the most useful tool inidentifying the wavelengths of visible light?

Spectroscope

Obj 1 What is the most appropriate unit of

measure for reporting the density of a solid?

F) g/cm 3

G) g/cmH) g/L 2

J) g/mm 2

Obj 1 Which of these is the most appropriate

unit of measure for reporting the density of a solid?

g/cm 3

OBJ 1Which of the following is most useful indetermining the kinetic energy of a 50 gbattery-powered car traveling a distance of10 m?A BeakerB VoltmeterC ThermometerD Stopwatch

OBJ 1Which of the following is most useful indetermining the kinetic energy of a 50 gbattery-powered car traveling a distance of10 m?

Stopwatch

OBJ 1

Which variable do you change in the experiment?

OBJ 1

Which variable do you change in the experiment?

THINK ……..I CHANGE

OBJ 1

The independent variables can be found on which axis?

OBJ 1

The independent variables can be found on which axis?

OBJ 1These data show how the mass

of an undisturbed beaker of alcohol varied during a class period. What happened?

OBJ 2A deletion of a DNA base from a gene affectsan organism by —F) causing future gametes to have additional chromosomesG) changing the sequence of amino acids in a proteinH) causing chromosome fragments to form long chainsJ) changing the structure of ribose sugar in nucleic acids

OBJ 2A deletion of a DNA base from a gene affectsan organism by —F) causing future gametes to have additional chromosomesG) changing the sequence of amino acids in a proteinH) causing chromosome fragments to form long chainsJ) changing the structure of ribose sugar in nucleic acids

Obj 2

Because chewing begins the breakdown of foodbefore it is swallowed, digestion starts in themouth and throat. Which of the followingsystems aids most in this early stage ofdigestion?A Immune systemB Excretory systemC Muscular systemD Respiratory system

Obj 2

Because chewing begins the breakdown of foodbefore it is swallowed, digestion starts in themouth and throat. Which of the followingsystems aids most in this early stage ofdigestion?A Immune systemB Excretory systemC Muscular systemD Respiratory system

Obj 2

Which of the following must occur before DNAreplication can take place?A Translation of DNA into amino acidsB Separation of the DNA molecule into codonsC Transformation of DNA into RNAD Separation of the DNA double helix

Obj 2

Which of the following must occur before DNAreplication can take place?

Separation of the DNA double helix

Obj 2Saltwater fish remove extra salt from theirbody by active transport through the gills.What is the result of this activity?A The salt becomes more chemically active.B Water balance is maintained in the blood.C The rate of energy production is decreased.D The cell membrane becomes less permeable to

water.

Obj 2Saltwater fish remove extra salt from theirbody by active transport through the gills.What is the result of this activity?A The salt becomes more chemically active.B Water balance is maintained in the blood.C The rate of energy production is decreased.D The cell membrane becomes less permeable to

water.

OBJ 3Some mesquite trees have deeper roots thanany other plant in the desert. How are deeproots an adaptation for survival in the desert?

OBJ 3Some mesquite trees have deeper roots thanany other plant in the desert. How are deeproots an adaptation for survival in the desert? Roots can extend great distances to reachwater.

OBJ 3

Some species of kelp anchor themselves to theseafloor. These species have small air sacs,called air bladders, at the base of each leaf.The air bladders raise the top of the kelp tothe water’s surface. What advantage do airbladders give the kelp?

OBJ 3

Some species of kelp anchor themselves to theseafloor. These species have small air sacs,called air bladders, at the base of each leaf.The air bladders raise the top of the kelp tothe water’s surface. What advantage do airbladders give the kelp? They allow kelp leaves to receive greater

amounts of sunlight.

Obj 3A study shows that 40% to 100% of rawpoultry is contaminated by disease-causingbacteria. What is an activity that provides people

the best protection from these bacteria?F Rinsing dishes thoroughlyG Eating a balanced diet dailyH Visiting a doctor regularlyJ Cooking foods properly

Obj 3A study shows that 40% to 100% of rawpoultry is contaminated by disease-causingbacteria. Which of the following activitiesprovides people the best protection from thesebacteria?F Rinsing dishes thoroughlyG Eating a balanced diet dailyH Visiting a doctor regularlyJ Cooking foods properly

OBJ 3

Which conclusion is best supported by theinformation in the diagram?F Volcanic eruptions were common in the area.G The area was once a marine environment.H Organisms in the area reproduced frequently.J Consumers once outnumbered producersin the area

Obj 3Insecticides help humans compete withinsects for a resource. Which resource is mostlikely to be preserved for humans through theuse of insecticides?F SunlightG WaterH FoodJ Air

Obj 3Insecticides help humans compete withinsects for a resource. Which resource is mostlikely to be preserved for humans through theuse of insecticides?

Food

OBJ 3A man treated his home with a pesticide thatkills roaches. The first application of thepesticide killed 92% of the roaches. Twomonths later he applied the pesticide to hishome again, but the second application killedonly 65% of the roaches. What would bestexplain the decrease in the effectiveness of thepesticide?

OBJ 3A man treated his home with a pesticide thatkills roaches. The first application of thepesticide killed 92% of the roaches. Twomonths later he applied the pesticide to hishome again, but the second application killedonly 65% of the roaches. What would bestexplain the decrease in the effectiveness of the• pesticide? The surviving roaches were naturallyresistant to the pesticide, and that resistance was

inherited by their offspring.

Obj 4The buoyant force that a fluid exerts onobjects is increased when there is an increasein the fluid’s —F acidityG clarityH solubilityJ density

Obj 4The buoyant force that a fluid exerts onobjects is increased when there is an increasein the fluid’s —F acidityG clarityH solubilityJ density

OBJ 4What would support the idea thatmass is conserved in a reaction that producesa gas as a product?

OBJ 4What would support the idea thatmass is conserved in a reaction that producesa gas as a product?

Trapping the gas and measuring its mass

OBJ 4• Elements found in which shaded area of

this periodic table undergo the fewest chemical reactions?

OBJ 4• Elements found in which shaded area of

this periodic table undergo the fewest chemical reactions? T (NOBLE GASES DON’T REACT)

OBJ 4As the viscosity of a liquid increases, theliquid —F conducts electricityG pour more slowlyH evaporates more quicklyJ forms a precipitate

OBJ 4

As the viscosity of a liquid increases, theliquid —F conducts electricityG pours more slowlyH evaporates more quicklyJ forms a precipitate

OBJ 4Silver bromide is a type of halide. Elementsfrom which group in the periodic table arenecessary to form halide compounds?A Group 4B Group 5C Group 10D Group 17

OBJ 4Silver bromide is a type of halide. Elementsfrom which group in the periodic table arenecessary to form halide compounds?

Group 17

OBJ 4In photography, which of these is an exampleof a chemical change?F) Light being refracted by a camera lensG) Adjusting a lens to focus lightH) Halide granules being activated by lightJ) Allowing a certain wavelength of lightinto the camera

OBJ 4In photography, which of these is an exampleof a chemical change?F) Light being refracted by a camera lensG) Adjusting a lens to focus lightH) Halide granules being activated by lightJ) Allowing a certain wavelength of lightinto the camera

OBJ 4Water normally boils at 100°C at sea level andat 97°C on a North American mountaintop.This difference in boiling points can beexplained by the difference between thelocations’—

air pressure

OBJ 5A hockey player pushed a puck toward theopposite side of a level ice rink. The playerexpected the puck to continue all the wayacross the ice, but the puck slowed andstopped before reaching the other side. Why does the puck fail to slide all the way to the

opposite side?

OBJ 5A hockey player pushed a puck toward theopposite side of a level ice rink. The playerexpected the puck to continue all the wayacross the ice, but the puck slowed andstopped before reaching the other side. Why does the puck fail to slide all the way to the

opposite side? An opposing force acted on the puck….gravity…friction

OBJ 5 Which of these devices uses the sun’s

energy directly? A Windmill B Hydroelectric dam C Nuclear power plant D Photovoltaic cell

OBJ 5 Which of these devices uses the sun’s

energy directly? A Windmill B Hydroelectric dam C Nuclear power plant D Photovoltaic cell

Obj 5A 1-kilogram ball has a kinetic energy of50 joules. The velocity of the ball is —F) 5 m/sG) 10 m/sH) 25 m/sJ) 50 m/s

Obj 5A 1-kilogram ball has a kinetic energy of50 joules. The velocity of the ball is —F) 5 m/sG) 10 m/sH) 25 m/sJ) 50 m/s

Obj 5A 1-kilogram ball has a kinetic energy of50 joules. The velocity of the ball is —F) 5 m/sG) 10 m/sH) 25 m/sJ) 50 m/s

Obj 5A 1-kilogram ball has a kinetic energy of50 joules. The velocity of the ball is —F) 5 m/sG) 10 m/sH) 25 m/sJ) 50 m/s

Obj 5A 1-kilogram ball has a kinetic energy of50 joules. The velocity of the ball is —F) 5 m/sG) 10 m/sH) 25 m/sJ) 50 m/s

OBJ 5A company has decided to market itself asenvironmentally friendly. If the company isgoing to sell calculators, the use of whichenergy source would produce the fewestby-products and the least waste?F Rechargeable batteriesG Solar cellsH Dry-cell batteriesJ Tesla coils

OBJ 5A company has decided to market itself asenvironmentally friendly. If the company isgoing to sell calculators, the use of whichenergy source would produce the fewestby-products and the least waste?F Rechargeable batteriesG Solar cellsH Dry-cell batteriesJ Tesla coils

Obj 5A guitar player is seated next to a piano. Thepiano player strikes an E key on the piano.The guitarist reports that this causes the Estring on his guitar to vibrate. What is thename of this phenomenon?A PolarizationB ResonanceC ReflectionD Diffraction

Obj 5A guitar player is seated next to a piano. Thepiano player strikes an E key on the piano.The guitarist reports that this causes the Estring on his guitar to vibrate. What is thename of this phenomenon? Resonance

Obj 5A person pushes a large box across a levelfloor by applying a horizontal force of 200 N.If the person pushes the box a distance of5 meters in 10 seconds, how much work doesthe person do on the box?A 2000 joulesB 1000 joulesC 400 joulesD 100 joules

Obj 5A person pushes a large box across a levelfloor by applying a horizontal force of 200 N.If the person pushes the box a distance of5 meters in 10 seconds, how much work doesthe person do on the box? A 2000 joules B 1000 joulesC 400 joulesD 100 joules

Obj 5A person pushes a large box across a levelfloor by applying a horizontal force of 200 N.If the person pushes the box a distance of5 meters in 10 seconds, how much work doesthe person do on the box? A 2000 joules B 1000 joulesC 400 joulesD 100 joules

Obj 5A person pushes a large box across a levelfloor by applying a horizontal force of 200 N.If the person pushes the box a distance of5 meters in 10 seconds, how much work doesthe person do on the box? A 2000 joules B 1000 joulesC 400 joulesD 100 joules