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Science Chapte 3
vocab.
| Question | Answer |
|---|---|
| An example of potential energy changing to kinetic energy is? | a roller coaster car pausing at the top of a hill and then rolling down |
| Most objects that give off light also give off? | Heat |
| In what form does energy from the sun travel to Earth? | Light |
| What can you feel after you rub an eraser against a paper? | Heat |
| Something that demonstrates potential energy is? | A sleeping cat |
| What changes electrical energy to mechanical energy? | a fan |
| In the afternoon when the sun is in the western sky, a tree's shadow stretches to the? | East |
| You buy a white shirt. Which of these is true about the shirt? | The shirt reflects all colors of light |
| In order for a shadow to form, what has to happen? | Light must be blocked by the tree |
| How does light travel? | In all directions from the source |
| What color of an object absorbs all colors of light? | Black, like the tire of a car |
| Something that makes a loud sound vibrates with? | a lot of energy |
| A violin has a higher pitch than a cello. What could be a reason for this? | the cello has longer, thicker strings |
| A student wires together three light bulbs and a battery in a series circuit. One of the bulbs burns out. What will happen next? | None of the light bulbs will stay lit |
| Why is plastic a good material for the covering of a wire? | Plastic is an insulator |
| How are conductors and insulators different? | electric charge moves easily through a conductor. It does not move through insulators |
| the movement of electrical charges | electric energy |
| energy you can hear | sound energy |
| ability to do work or to cause change | energy |
| the energy of motion | kinetic energy |
| the energy that motion or postion gives to an object | mechanical energy |
| stored energy | potential |
| a disturbance that carries energy from one point to another point | wave |
| to bend light | refract |
| to take in light | abosrb |
| to bounce light off an object | reflect |
| a dark area formed when an object blocks a light | shadow |
| energy we can see | light energy |
| how high or low a sound is | pitch |
| how loud or soft a sound is | volume |
| a circuit with no gaps or breaks | closed circuit |
| a circuit with an open path | open circuit |
Created by:
sbarney2
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