Let’s work through this step by step.
This worksheet is about
energy transformation — that means how energy changes from one form to another.
We are shown three examples, each with a “before” picture and an “after” picture. We need to write the type of energy before the change and the type of energy after the change.
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First Example: Gas pump → Car
- Before: The gas pump gives us fuel (gasoline). Fuel stores energy in chemical form → so this is
chemical energy.
- After: The car moves and makes smoke → that means it’s using the fuel to move (motion) and produce heat/smoke → so this is
kinetic energy (for motion) and
thermal energy (for heat). But since the main purpose is moving, we usually say
kinetic energy for the car’s motion. Sometimes worksheets accept “mechanical energy” too, but “kinetic” is more precise here.
✔ So:
Before: Chemical energy
After: Kinetic energy
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Second Example: Battery → Flashlight
- Before: A battery stores energy chemically → again,
chemical energy.
- After: The flashlight turns on and shines light → so it’s producing
light energy. It also gets warm, so some thermal energy, but the main output is light.
✔ So:
Before: Chemical energy
After: Light energy
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Third Example: Electric kettle → Cup of hot coffee
- Before: The kettle is plugged in → it uses electricity → so
electrical energy.
- After: The coffee is hot → that means thermal energy (heat) was transferred to the coffee.
✔ So:
Before: Electrical energy
After: Thermal energy
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Now let’s double-check:
1. Gas → Car: Chemical → Kinetic ✔️
2. Battery → Flashlight: Chemical → Light ✔️
3. Kettle → Hot Coffee: Electrical → Thermal ✔️
All make sense!
Final Answer:
First box: Chemical energy
Second box: Kinetic energy
Third box: Chemical energy
Fourth box: Light energy
Fifth box: Electrical energy
Sixth box: Thermal energy
Parent Tip: Review the logic above to help your child master the concept of energy conversions worksheet.
