Energy B: Energy Transformation

When you rub your hands together on a cold day, what type of energy transformation is primarily taking place?

• Mechanical to Thermal

• Electrical to Thermal

• Chemical to Mechanical

• Light to Thermal

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DOK Level 1: Recall

What is the primary energy transformation in a hydroelectric power plant?

• Chemical to Electrical

• Mechanical to Electrical

• Thermal to Mechanical

• Electromagnetic to Electrical

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DOK Level 1: Recall

In a flashlight, what type of energy transformation first occurs when the switch is turned on?

• Chemical to Electrical

• Electrical to Light

• Mechanical to Electrical

• Chemical to Light

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DOK Level 2: Skill/Concept

During nuclear fission, which type of energy transformation primarily occurs?

• Chemical to Nuclear

• Nuclear to Thermal

• Mechanical to Nuclear

• Electrical to Nuclear

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DOK Level 2: Skill/Concept

What type of energy is primarily used by plants to perform photosynthesis?

• Chemical

• Light

• Thermal

• Electrical

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DOK Level 1: Recall

In an electric water heater, electrical energy is converted into what type of energy?

• Light

• Sound

• Thermal

• Mechanical

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DOK Level 1: Recall

When a battery powers a motor, which sequence of energy transformation occurs?

• Chemical -> Electrical -> Mechanical

• Electrical -> Chemical -> Mechanical

• Mechanical -> Electrical -> Chemical

• Chemical -> Mechanical -> Electrical

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DOK Level 2: Skill/Concept

3. How does a hydroelectric dam convert energy from flowing water into electrical energy? A) B) C) By using the force of water to turn turbines, which generate electricity D)

• By converting sound waves into electrical signals

• By using the force of water to turn turbines (mechanical) into Electricity.

• By transforming thermal energy into mechanical energy

• By converting light energy into electrical energy

4. In a solar-powered calculator, what energy transformation occurs when sunlight hits the solar cells? A) B) C) D)

• Nuclear to thermal

• Light to electrical

• Mechanical to electrical

• Sound to chemical

5. Which of the following represents a sequence of energy transformations in a nuclear power plant?

• Thermal to chemical to nuclear to electrical

• Electrical to mechanical to thermal to nuclear

• Mechanical to thermal to nuclear to electrical

• Nuclear to thermal to mechanical to electrical