Conservation of Mechanical Energy Review

At which point on the roller coaster does the car have the most kinetic energy? (6.8A)

• W

• X

• Y

• Z

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The Law of Conservation states that - (6.9C)

• energy cannot be created or destroyed but can only change from one form to another.

• energy can be created or destroyed and cannot change from one form to another.

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At what point will the roller coaster car have transformed the greatest amount of gravitational potential energy into kinetic energy?

• W

• X

• Y

• Z

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As the car moves down the slope, the amount of (a)   energy decreases while the amount of (b)   energy increases.

• kinetic

• potential

• thermal

• mechanical

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The law of conservation of energy states that energy cannot be created or destroyed. ​ (a)   or​ (b)  

• created

• destroyed

• energy

• work

• power

As the ball is dropped, the potential energy decreases while the kinetic energy increases however the amount of energy stays the same.

• True

• False

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What type of energy does the weight have before the rope is cut?

• Kinetic Energy

• Nuclear Energy

• Potential Energy

• Radiant Energy

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Where in the swing does the girl have the greatest potential energy?

• Highest point of the swing.

• Mid point of the swing

• Lowest point of the swing.

• When the chain breaks

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When the biker is going up the hill, he is converting kinetic energy into ____ energy.

• Kinetic

• Potential

• Mechanical

• Sound

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Which of the following best describes the principle of conservation of mechanical energy?

• Mechanical energy is always conserved in all systems.

• Mechanical energy can be converted to other forms of energy but the total energy remains constant.

• Mechanical energy is lost in the form of heat in all systems.

• Mechanical energy is only conserved in closed systems with no external forces.