Unit 11 Energy

Which quantity has both magnitude and direction?

• Temperature

• Speed

• Velocity

• Energy

If the height in the potential energy formula is multiplied by 3 and mass remains unchanged, what happens to the potential energy?

• It becomes one-third of the original.

• It increases three times.

• It remains unchanged.

• It becomes six times larger.

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Which item does not demonstrate stored elastic energy?

• A slingshot pulled back

• A rubber band stretched

• A parked car on a hill

• A bent diving board

To make snowballs hit with greater force, what change would be most effective?

• Reduce their weight

• Increase their speed

• Use a lighter material

• Make them smaller

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Examples of _________ energy include visible light, X-rays, and microwaves.

• Radiant

• Kinetic

• Chemical

• Nuclear

During photosynthesis, plants transform sunlight into what form of energy?

• Electrical

• Kinetic

• Chemical

• Mechanical

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When gasoline burns in a car engine, what type of energy is transformed?

• Nuclear

• Kinetic

• Chemical

• Electrical

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A child lifts a melting ice cream cone. What accounts for the cone's total energy change?

• The lift only

• Heat transfer only

• Both lifting and heat transfer

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How does light travel from the sun to Earth?

• Sound waves

• Water waves

• Electromagnetic waves

• Mechanical waves

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When a figure skater lifts their partner, they transfer _________ energy. As the lifted partner spins in the air, they also possess _________ energy.

• Kinetic, potential

• Potential, kinetic

• Thermal, chemical

• Chemical, thermal

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