physical science challenge part i types of energy energy is?? ability to cause changes in matter. is...
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![Page 1: Physical Science Challenge Part I Types of Energy Energy is?? Ability to cause changes in matter. Is energy ever lost? No, it is just changed from one](https://reader030.vdocuments.net/reader030/viewer/2022032703/56649f585503460f94c7e0d1/html5/thumbnails/1.jpg)
Physical Science Challenge Part I
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Types of Energy• Energy is??•Ability to cause changes in matter.
• Is energy ever lost?•No, it is just changed from one form to another
• Energy of motion or energy in use is -•KINETIC (moving)
• Energy an object has because of where it is or because of its condition is - POTENTIAL (non-moving)
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Solar Energy
►What source does most of the energy on earth come from?
THE SUN►What forms of energy are produced by the sun?
SOLAR, LIGHT, HEAT
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Thermal Energy
►Thermal energy is:The random movement of molecules
►The faster the molecules are moving, the higher the _____________.TEMPERATURE
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Geothermal (Heat) Energy
►What is geothermal energy? Heat energy from the earth
►Heat energy traveling from the sun through space is called: RADIATION
►Heat transferred (carried) from one molecule to another is called: CONDUCTION
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Electrical Energy►In order for a light connected to a
battery to work it’s wires must be touching_________________. Both sides (+ & -) of the battery
►Why is there a rubber coating around an electric wire? To act as an insulator (so you
won’t get electrocuted)►What is electricity doing in a wire?
Electrons are moving to a +
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Electrical Energy►What interaction takes place in a
circuit connected to a light bulb? Electrical energy flows through
the wires to produce light energy►Electrical energy can be
transformed into: electromagnetism, light, heat,
movement, and sound energy►Name 3 types of energy a T.V. uses.
Light, Sound, and Electric
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Light Energy
►What is reflection?Light reflecting color in OPPOSITE direction
►Explain angles of reflectionLight angles will reflect light at the same angle in opposite direction (symmetrically)
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Light Energy►When a pencil is placed into a glass of
water, what change takes place? Light traveling through water slows
and makes the pencil look bigger (refraction)
►What properties must be present for a surface to refract light? It must be transparent and curved
►What happens to light traveling through a glass of water? Refraction: it slows, and bends
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Light Energy►What are some examples of things that reflect light?Mirrors, walls, tinted windows, etc
►What are some examples of tools that refract light?Cameras, telescopes, eyeglasses, microscopes, magnifying glass, etc.
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Sound Energy►Is sound energy kinetic energy or
potential energy? KINETIC (moving energy)
►In order for sound to be present we need 2 things what are they? MATTER AND VIBRATIONS
►Is there sound in space? Why? No, because there is no matter in
space►In which type of matter does sound
travel the fastest? SOLIDS
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Sound Energy►Describe how sound travels from a guitar to your ear.1st pluck the string to cause vibrations
2nd vibrations conduct through molecules in the air
3rd the sound waves reach your ears causing your eardrums to vibrate
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Forces►Does gravity push or pull?
PULL►Name the 3 types of forces?
FRICTION, MAGNETISM, GRAVITY
►What 2 forces effect meteorites in the earth’s atmosphere?GRAVITY and FRICTION
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Forces
►What force acts on a ball thrown in the air?GRAVITY
►How do compasses work?MAGNETISM, NORTH and SOUTH POLES