Name that Energy

Match the following terms to the correct definition

• A push or pull

• Force

• Force that causes motion

• Kinetic Energy

• Stored energy

• Potential Energy

• Energy in motion

• Work

Tags

NGSS.MS-PS3-1

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NGSS.MS-PS2-2

What type of energy is in this picture?

• Kinetic

• Potential

• Chemical

• Sound

Answer explanation

The picture likely depicts an object at rest or elevated, indicating stored energy. This is known as potential energy, which is energy due to position or condition, unlike kinetic energy which is associated with motion.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

On a roller coaster, where is maximum potential energy?

• At the bottom of a big hill

• When going around a corner

• When going upside down

• At the top of a big hill

Answer explanation

Maximum potential energy on a roller coaster occurs at the top of a big hill, where the height is greatest. As the coaster descends, this potential energy converts to kinetic energy, reaching its lowest point at the bottom.

Tags

NGSS.MS-PS3-2

On a roller coaster, where is maximum kinetic energy?

• At the bottom of a big hill

• When going around a corner

• When going upside down

• At the top of a big hill

Answer explanation

Maximum kinetic energy on a roller coaster occurs at the bottom of a big hill. Here, potential energy is converted to kinetic energy as the coaster descends, resulting in the highest speed and kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

At what position does the rock have the greatest kinetic energy?

• A

• B

• D

• E

Answer explanation

The rock has the greatest kinetic energy at position E because kinetic energy is highest when the rock is at its maximum speed, which occurs at the lowest point of its motion, typically at position E in a vertical motion scenario.

Tags

NGSS.MS-PS3-1

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Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass

• Friction and movement

• Mass and Movement

• Height and Friction 

Answer explanation

Gravitational potential energy is determined by the height of an object above a reference point and its mass. Therefore, the correct answer is 'Height and mass', as these factors directly influence the energy stored due to gravity.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

Explain what happens to the potential energy of a rock as it falls off the side of a cliff.

• The kinetic energy decreases as the potential energy increases.

• The kinetic energy decreases as the potential energy decreases.

• The potential energy decreases as the kinetic energy increases.

• The potential energy decreases as the kinetic energy decreases. 

Answer explanation

As the rock falls, its height decreases, leading to a decrease in potential energy. Simultaneously, the rock's speed increases, resulting in an increase in kinetic energy. Thus, the potential energy decreases as the kinetic energy increases.

Tags

NGSS.MS-PS3-5

Which passenger has the most potential energy?

• A

• B

• C

• D

Answer explanation

Passenger D has the highest position among the options, which means they have the most gravitational potential energy. Potential energy increases with height, making D the correct choice.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

What kind of energy does the picture demonstrate?

• kinetic energy

• potential energy

• Both

Answer explanation

The picture demonstrates both kinetic energy, which is the energy of motion, and potential energy, which is stored energy based on position. Therefore, the correct answer is 'Both'.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What kind of energy does the picture demonstrate?

• kinetic energy

• potential energy

Answer explanation

The picture demonstrates potential energy, which is the stored energy in an object due to its position or state. Kinetic energy, on the other hand, is the energy of motion, which is not depicted here.

Tags

NGSS.MS-PS3-2