Let's solve the worksheet step by step. The task is to
identify the types of energy transformations in each of the given pictures.
We’ll go through each image and explain the energy conversion that occurs.
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1) Windmill
Image: A windmill with blades spinning due to wind.
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Energy Input: Wind (moving air) →
Kinetic Energy
-
Energy Output: Mechanical energy (spinning blades), which can be converted into electrical energy if connected to a generator.
✔ Energy Conversion:
Kinetic Energy (wind) → Mechanical Energy (rotation)
*(If generating electricity: Mechanical → Electrical)*
>
✔ Final Answer:
Kinetic → Mechanical (or
Kinetic → Mechanical → Electrical, depending on context — but for basic level,
Kinetic to Mechanical is sufficient)
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2) Torch (Flashlight)
Image: A flashlight emitting light.
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Energy Input: Chemical energy stored in the battery
-
Energy Output: Light energy (and some heat)
✔ Energy Conversion:
Chemical Energy → Electrical Energy → Light Energy
>
✔ Final Answer:
Chemical → Electrical → Light
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3) Microwave
Image: A microwave oven.
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Energy Input: Electrical energy from the outlet
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Energy Output: Microwave radiation (electromagnetic waves) that heats food → Thermal energy
✔ Energy Conversion:
Electrical Energy → Electromagnetic Energy (microwaves) → Thermal Energy
>
✔ Final Answer:
Electrical → Thermal (with intermediate electromagnetic energy)
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4) Dynamite
Image: A stick of dynamite with a fuse lit.
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Energy Input: Chemical energy stored in the explosive material
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Energy Output: Sound, light, heat, and kinetic energy (from explosion)
✔ Energy Conversion:
Chemical Energy → Heat, Light, Sound, and Kinetic Energy
>
✔ Final Answer:
Chemical → Heat, Light, Sound, and Kinetic Energy
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5) Bicycle
Image: Two people riding bicycles.
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Energy Input: Chemical energy from food (in the body)
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Energy Output: Mechanical energy (motion of the bicycle), plus some heat (due to friction and metabolism)
✔ Energy Conversion:
Chemical Energy (food) → Kinetic Energy (movement)
*(Also includes some thermal energy as waste)*
>
✔ Final Answer:
Chemical → Kinetic
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6) Battery
Image: A battery (e.g., AA or D-cell).
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Energy Input: Stored chemical energy
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Energy Output: Electrical energy when connected to a circuit
✔ Energy Conversion:
Chemical Energy → Electrical Energy
>
✔ Final Answer:
Chemical → Electrical
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✔ Summary Table:
| Object | Energy Conversion |
|--------------|-------------------|
|
Windmill | Kinetic → Mechanical |
|
Torch | Chemical → Electrical → Light |
|
Microwave | Electrical → Thermal |
|
Dynamite | Chemical → Heat, Light, Sound, Kinetic |
|
Bicycle | Chemical → Kinetic |
|
Battery | Chemical → Electrical |
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Notes:
- In many cases, multiple forms of energy are involved.
- Always start with the
input energy source and trace it to the
output form(s).
- Some conversions have intermediate steps (e.g., battery → electrical → light in a torch).
Let me know if you'd like this formatted as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of energy transformation worksheet 6th grade.
