Which of the following objects has the most kinetic energy?

A 90 kg toddler running at 30 m/s

A 20 kg toddler running at 5 m/s

A 50 kg toddler running at 30 m/s

A 100 kg toddler running at 2 m/s

Two identical trophies are placed on a shelf. Trophy 1 is placed on a shelf that is 1m above the ground. Trophy 2 is placed on a shelf 2m above the ground. What best compares the potential energy of the trophies?

Trophy 2 has twice as much potential energy as Trophy 1.

Trophy 2 has half as much potential energy as Trophy 1.

Trophy 1 has twice as much potential energy as Trophy 2.

Trophy 1 has four time the potential energy as Trophy 2.

How would you describe the relationship between the mass of a car and its kinetic energy?

As the mass of a car increases, its kinetic energy increases.

As the mass of a car increases, its kinetic energy decreases.

As the mass of a car decreases, its kinetic energy increases.

There is no clear relationship between mass and kinetic energy.

Imagine dropping a basketball. When would it have the most gravitational potential energy?

When it is at the highest point

When it is closest to the ground

It has the same amount of gravitational PE at all points

How could you increase the gravitational potential energy of an object without changing its mass and gravity ?

Raise the object farther off the ground

Lower the object towards the ground

Allow the object to roll on the ground

The figure below shows a wagon that moves from point X to point Y. Which of the following best describes the wagon’s change in energy as it coasts from point X to point Y?

The wagon has more gravitational potential energy at point Y than at point X.

The wagon has the same kinetic energy at point Y and at point X.

The wagon has more kinetic energy at point Y than at point X.

The wagon has the same gravitational potential energy at point Y and at point X.

Which of the following describes the mechanical energy of a cart at rest at the top of a steep hill?

The cart’s mechanical energy is all potential.

The cart has no mechanical energy.

The cart’s mechanical energy is all kinetic.

The cart’s mechanical energy is half potential and half kinetic.

Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?

The least amount of force was needed on the 40 cm inclined plane.

Less force was needed on the 20 cm plane

More force was needed on the 40 cm inclined plane.

The least amount of force was needed on the 30 cm inclined plane.

Movers needed to move a heavy box from the bottom of some stairs to the top of the stairs. They placed a ramp over the stairs and pushed the box up the ramp. Which best explains why the movers used a ramp to move the box?

The ramp reduced the amount of force needed to move the box.

The ramp increased the height that the box needed to be moved.

The ramp reduced the distance that the box needed to be moved.

The ramp increased the amount of friction needed to move the box.

Which of the following is the best example of work being done on an object?

pushing on a car that will not move

Two students each carry a box up to the third floor of a building. The total mass of each student and the box she is carrying is the same. Roberta makes the trip in 45 s while Mary takes 30 s. Which of the following statements best describes this task?

Mary has a greater power output than Roberta.

Roberta does more total work than Mary.

Mary does more total work than Roberta.

Roberta has a greater power output than Mary.

An astronaut drops a 1.0 kg object and a 5.0 kg object on the Moon. Both objects fall a total distance of 2.0 m vertically. Which of the following best describes the objects after they have fallen a distance of 1.0 m?

They have each gained one-half of their maximum kinetic energy.

They have each lost kinetic energy.

They have each gained the same amount of potential energy.

They have each lost the same amount of potential energy.

While playing a game at a fair, a person lifts a mallet above her head. She then lets the mallet fall toward a target, as shown below. Which of the following statements describes an energy change that takes place as the person lifts the mallet and then lets it fall toward the target?

Potential energy converts to kinetic energy as the mallet falls toward the target.

Kinetic energy increases as the mallet reaches its highest point.

Potential energy decreases as the mallet reaches its highest point.

Kinetic energy converts to potential energy as the mallet falls toward the target.

Unit 6 Exam Review

Authored by Katherine Johnson

Physics

11th - 12th Grade

NGSS covered

Used 9+ times

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30 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Where is the car moving fastest?

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Where does the car have the most gravitational PE?

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

MULTIPLE SELECT QUESTION

1 min • 1 pt

The car is not moving at point A -
what type of energy is present at point A?
(Select all that apply)

No Mechanical Energy Present

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The car has 200 J of PE at point A and is not moving. What is the total ME at point A?

200 J

150 J

100 J

50 J

0 J

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The car has 200 J of KE at point C and is at the lowest point. What is the total ME at point D?

200 J

150 J

100 J

50 J

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If a 100 Newton person lifts a 50 Newton ball up stairs with a height of 1.5m. He took 17 seconds to do this. How much total work was done?

225 Joules

150 Joules

75 Joules

3825 Joules

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When my velocity triples, my kinetic energy increases by ______ times.

1.5

4.5

Tags

NGSS.MS-PS3-1

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Unit 6 Exam Review

Where is the car moving fastest?

Where does the car have the most gravitational PE?

The car is not moving at point A -
what type of energy is present at point A?
(Select all that apply)

The car has 200 J of PE at point A and is not moving. What is the total ME at point A?

The car has 200 J of KE at point C and is at the lowest point. What is the total ME at point D?

If a 100 Newton person lifts a 50 Newton ball up stairs with a height of 1.5m. He took 17 seconds to do this. How much total work was done?

When my velocity triples, my kinetic energy increases by ______ times.

I do the same amount of work as my friend but it takes me twice as long to finish, who is more powerful

Which of the following objects has the most kinetic energy?

The potential energy of an object increases 50 J. If there is no friction, how much kinetic energy has tranformed?

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Popular Resources on Wayground

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Unit 6 Exam Review

Where is the car moving fastest?

Where does the car have the most gravitational PE?

The car is not moving at point A -what type of energy is present at point A?(Select all that apply)

The car has 200 J of PE at point A and is not moving. What is the total ME at point A?

The car has 200 J of KE at point C and is at the lowest point. What is the total ME at point D?

If a 100 Newton person lifts a 50 Newton ball up stairs with a height of 1.5m. He took 17 seconds to do this. How much total work was done?

When my velocity triples, my kinetic energy increases by ______ times.

I do the same amount of work as my friend but it takes me twice as long to finish, who is more powerful

Which of the following objects has the most kinetic energy?

The potential energy of an object increases 50 J. If there is no friction, how much kinetic energy has tranformed?

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The car is not moving at point A -
what type of energy is present at point A?
(Select all that apply)