8.1 Lesson 8 QUIZ

What happens to the kinetic energy of the box in our investigation?

• The kinetic energy was destroyed when the box came to a stop.

• The kinetic energy was converted into thermal energy (heat).

• The kinetic energy became potential energy.

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When comparing a heavy object to a lighter one, to achieve the same amount of speed increase, you need to apply:

• Less force to the heavier object

• Equal force to both objects

• More force to the heavier object

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What happens when you change the shape or arrangement of parts in a system, like compressing a spring?

• Kinetic energy is lost

• Potential energy is stored

• Gravity increases

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Which type of energy is unleashed when a compressed spring is released and jumps into the air?

• Kinetic energy

• Potential energy

• Thermal energy

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How does energy transfer occur in a cart-launcher system when you push the cart?

• Through magnetic forces

• Through contact forces

• Through gravitational forces

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What role does friction play in the energy transfer of a moving object?

• It increases potential energy

• It decreases kinetic energy

• It is a contact force that transfers energy

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In the context of potential energy, what does "changing the shape or arrangement of parts" refer to?

• Changing color

• Altering the temperature

• Modifying the structure or arrangement

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When you give a cart a good push, what type of energy is being transferred to make it move?

• Sound energy

• Kinetic energy

• Light energy

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Where did the energy in our launcher system come from, and, after the collision, where did it go?

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