A battery powers a flashlight. What is the correct sequence of energy transformations?

Chemical $$\rightarrow$$ Electrical $$\rightarrow$$ Light

Electrical $$\rightarrow$$ Chemical $$\rightarrow$$ Light

Light $$\rightarrow$$ Chemical $$\rightarrow$$ Electrical

Electrical $$\rightarrow$$ Light $$\rightarrow$$ Chemical

Which of the following statements is true about energy transfer in a closed system?

The total energy remains constant.

Energy can enter or leave the system.

On a roller coaster, where does the cart have the most gravitational potential energy?

At the highest point of the track

At the lowest point of the track

As a roller coaster cart descends from the top of a hill, what happens to its energy?

Potential energy is converted to kinetic energy

Kinetic energy is converted to potential energy

Chemical energy is converted to thermal energy

Electrical energy is converted to sound energy

If a roller coaster cart starts from rest at the top of a hill, which statement is true as it moves down?

Its potential energy decreases and kinetic energy increases

Its potential energy increases and kinetic energy decreases

Both potential and kinetic energy remain the same

Both potential and kinetic energy decrease

At the bottom of a roller coaster hill, the cart is moving fastest. Why?

All of its potential energy has been converted to kinetic energy

Construct an argument to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.

Energy is transferred to or from the object, as seen when a moving car stops and its kinetic energy is converted to heat in the brakes.

Energy is created when the potential energy becomes kinetic energy as the car travels down the hill.

Energy is destroyed when the kinetic energy of the moving car changes.

Kinetic energy does not affect energy transfer.

What happens to the potential energy of an object as it falls freely under gravity?

It is converted into sound energy.

A ball fell to the floor after rolling off a table. What was true of the ball’s energy as it fell?

The ball’s potential energy decreased as it fell, so its kinetic energy must have increased to conserve mechanical energy.

The ball’s potential energy decreased as it fell, so its kinetic energy must have decreased to conserve mechanical energy.

A toy car travels up a ramp. The car’s speed decreases as it moves up the ramp. What happens to the car’s kinetic energy and potential energy as it travels up the ramp?

The car’s potential energy increases, and its kinetic energy decreases.

The car’s kinetic energy and potential energy increase.

The car’s kinetic energy and potential energy decrease.

The car’s kinetic energy increases, and its potential energy decreases.

Unit 1 Energy Review

Authored by Tammy Powell

Science

7th Grade

NGSS covered

Used 11+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the Law of Conservation of Energy?

Energy can be created but not destroyed.

Energy cannot be created or destroyed, only transferred or transformed.

Energy is always lost during a transfer.

Energy can only be stored, not transferred.

Tags

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a ball is dropped from a height, what type of energy transformation primarily occurs as it falls?

Chemical energy to electrical energy

Kinetic energy to potential energy

Potential energy to kinetic energy

Thermal energy to sound energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student rubs their hands together and feels them get warmer. What type of energy transfer is taking place?

Kinetic to potential

Chemical to electrical

Mechanical to thermal

Light to sound

Tags

NGSS.MS-PS3-5

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a moving car suddenly stops, what happens to its kinetic energy?

It disappears completely.

It is transformed into other forms, such as heat and sound.

It is stored as potential energy.

It becomes chemical energy.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes energy transfer in a food chain?

Energy is created at each level.

Energy is transferred from one organism to another.

Energy is destroyed at each level.

Energy remains the same at all levels.

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main reason why not all energy is transferred from one trophic level to the next in a food chain?

Some energy is lost as heat.

All energy is transferred efficiently.

Energy is destroyed.

Energy is converted to light.

Tags

NGSS.MS-LS2-3

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Unit 1 Energy Review

Which of the following best describes the Law of Conservation of Energy?

When a ball is dropped from a height, what type of energy transformation primarily occurs as it falls?

A student rubs their hands together and feels them get warmer. What type of energy transfer is taking place?

If a moving car suddenly stops, what happens to its kinetic energy?

Which of the following best describes energy transfer in a food chain?

What is the main reason why not all energy is transferred from one trophic level to the next in a food chain?

A battery powers a flashlight. What is the correct sequence of energy transformations?

Which of the following statements is true about energy transfer in a closed system?

If a pendulum swings back and forth, what happens to its energy at the highest point of the swing?

Access all questions and much more by creating a free account

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