Potential and Kinetic Energy Warm Up

What is kinetic energy?

• The energy an object has due to its position or condition

• The energy an object has due to its motion

• The energy an object has due to its chemical composition

• The energy an object has due to its atomic structure

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What is potential energy?

• The energy an object has due to its atomic structure.

• The energy an object has due to its chemical composition.

• The energy an object has due to its motion.

• The energy an object has due to its position or condition.

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NGSS.MS-PS3-2

Energy stored because of gravity is called:

• Gravitational Potential Energy

• Kinetic Energy

• Mechanical Advantage

• Chemical Energy

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A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?

• 43982.4 J

• 63982.3 J

• 43962.4 J

• 83942.4 J

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A pitcher throws a 0.145 kg baseball at a velocity of 30.0m/s. How much kinetic energy does the ball have?

• 65.35 J

• 87.25 J

• 23.45 J

• 65.25 J

Tags

NGSS.MS-PS3-1

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

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Which would have the LEAST gravitational potential energy (GPE)?

• A ball sitting on the ground

• Moon viewed from the Earth

• An airplane flying 30,000 feet above the ground

• A rock sitting on top of Mt. Everest

Tags

NGSS.MS-PS3-2

The diagram shows a 21.7kg ball located on a shelf 1.6m above the ground. Which best describes the energy of the ball?

• Its energy is lost once it falls off the shelf.

• Its energy depends upon the speed the ball will travel.

• It has mechanical energy in the form of potential energy.

• It has mechanical energy in the form of kinetic energy.

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NGSS.MS-PS3-2

If the motion of an object is increased, which type of mechanical energy was gained by the object?

• chemical energy

• gravitational potential energy

• kinetic energy

• electromagnetic energy

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How does the energy of a roller coaster cart change as the cart travels from the top of the roller coaster to the bottom?

• The cart has greater kinectic energy at the top than it does at the bottom.

• The cart has no energy at the top and more energy at the bottom.

• The cart has less potential energy at the top than it does at the bottom.

• The cart has potential energy at the top that is transformed to kinetic energy as it moves to the bottom.

Tags

NGSS.MS-PS3-5