What happens to the ball's energy level as it is lifted upward?

• It disappears.

• It increases.

• It remains the same.

• It decreases.

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What type of energy does the ball have as it swings downward?

• Chemical energy.

• Gravitational potential energy.

• Kinetic energy.

• Thermal energy.

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What principle explains why the ball didn't hit the dummy's face?

• Law of Inertia.

• Law of Conservation of Energy.

• Law of Universal Gravitation.

• Law of Thermodynamics.

According to the law of conservation of energy, energy can be:

• Created or destroyed.

• Only created.

• Only destroyed.

• Transferred or transformed.

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What happens to motion energy when friction is involved?

• It remains unchanged.

• It is transformed into heat energy.

• It is destroyed.

• It increases.

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Why did the ball have less kinetic energy in the swing?

• Due to the transformation of energy into heat because of friction.

• Due to the ball's weight.

• Because of increased gravitational pull.

• Because of air resistance.

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What does the law of conservation of energy govern?

• Only chemical reactions.

• Only thermal interactions.

• Only gravitational interactions.

• Collisions between all objects.

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During a car crash, the kinetic energy of a moving car can be:

• Only transferred to other types of kinetic energy.

• Only transformed into sound energy.

• Destroyed.

• Transferred or transformed into various forms of energy.

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What types of energy can kinetic energy be transformed into during a car crash?

• Only heat.

• Sound, light, or heat.

• Only light.

• Only sound.

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How do engineers design crash-worthy cars?

• By making them heavier.

• By reducing their size.

• By managing crash energy to keep it away from occupants.

• By making them faster.

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