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cool things
| Question | Answer |
|---|---|
| What is energy? | Energy is the ability to cause,change,or do work. |
| How are particles in solids packed? | Closely packed. |
| What does an insulator do? | Limits the amount of heat. |
| What do conductors do? | Readily allows heat to move. |
| How are electromagnetic waves used by humans? | to kill bacteria,x-rays,and to warm up food. |
| How do light waves react in a concave lens? | Light rays spread out,Objects appear smaller. |
| What is thermal energy? | Is the total energy of those moving particles. |
| What is radiation? | Energy that is sent out in little bundles. |
| What is sound. | a form of energy that travels in waves when objects vibrate. |
| What are echoes? | they are sound waves that bounce back after hitting an object. |
| What is pitch? | pitch is what makes sound seem high or low. |
| Whats transparent? | materials that transmit nearly all light rays that hit them. |
| what is translucent? | Materials that let some light pass through. |
| what is opaque? | materials that dont let any light get through. |
| what does refraction do? | light changes speed as it moves from one transparent medium to another causing light to bend. |
| whats temperature? | the measure of the average amount of motion of particles in matter. |
| what type of waves are sound waves? | longitudinal waves. |
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griffin4466
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