Energy is what makes things move or change. It comes in different forms like light, heat, motion, and electricity. Energy doesn't just disappear; it transforms from one form to another. For example, when you turn on a light bulb, electrical energy transforms into light and heat energy. Understanding these transformations is key to understanding how the world works! Let's get started with some practice problems.
Match the terms with their definitions:
| Term | Definition |
|---|---|
| 1. Kinetic Energy | A. Energy stored in an object due to its position or condition. |
| 2. Potential Energy | B. Energy that is transferred as heat. |
| 3. Thermal Energy | C. Energy of motion. |
| 4. Electrical Energy | D. Energy resulting from the flow of electric charge. |
| 5. Radiant Energy | E. Energy that travels as electromagnetic waves. |
(Answers: 1-C, 2-A, 3-B, 4-D, 5-E)
Fill in the missing words in the paragraph below:
When you ride a bicycle, your body uses __________ energy from food. This energy is transformed into __________ energy as you pedal and move forward. Some of the energy is also transformed into __________ energy due to friction.
(Answers: chemical, kinetic, thermal)
Describe a real-life example of energy transformation that you observe daily. Explain what forms of energy are involved and how the transformation occurs.
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