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Unit 1 Energy -PART2
| Question | Answer |
|---|---|
| What does the Law of Conservation of Energy state? | Energy cannot be created or destroyed |
| What form of energy is stored in food and fuel? | Chemical energy |
| What form of energy is produced by moving electrons? | Electrical energy |
| What form of energy travels in waves such as light? | Radiant energy |
| What form of energy is stored in the nucleus of atoms? | Nuclear energy |
| What form of energy is related to motion or position? | Mechanical energy |
| In a toaster | electrical energy is transformed into which two forms of energy? |
| What energy transformations happen in a battery powering a light bulb? | Chemical → Electrical → Radiant (light) and Thermal (heat) |
| What two types of energy are produced by a campfire? | Heat and Light |
| Which energy transformation occurs when a person hits a drum? | Mechanical → Sound |
| Which form of energy is stored in wood before it burns? | Chemical energy |
| What energy transformation occurs in a windmill? | Mechanical (wind) → Mechanical → Electrical |
| What energy transformation occurs in photosynthesis? | Radiant → Chemical |
| What happens to potential and kinetic energy as a ball rolls down a hill? | Potential decreases |
| Where is potential energy greatest on a roller coaster? | At the highest point |
| Where is kinetic energy greatest on a roller coaster? | At the lowest point |
| Why does a ball never bounce back to the same height? | Some energy transforms into heat and sound |
| What happens to energy when you rub your hands together? | Mechanical → Thermal |
| Which type of energy is released when wood burns? | Chemical → Thermal |
| What type of energy is stored in gasoline before it is burned? | Chemical energy |
| Which type of energy does a stretched rubber band have? | Potential (Elastic) energy |
| What type of energy does a moving car have? | Kinetic energy (Mechanical) |
| What type of energy transformation occurs when you eat food and then run? | Chemical → Mechanical + Thermal |
| When a pendulum swings | where is PE and KE greatest? |
| What is the source of energy for the water cycle? | The Sun (Radiant energy) |
| What does a flat line on an energy graph mean? | No change in energy |
| Explain with CER: Why does your body get warmer when you exercise? | Claim: Chemical → Mechanical + Thermal; Evidence: Muscles move and heat builds; Reasoning: Energy transforms |
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