Kinetic Energy Questions

How do mass and speed relate to kinetic energy? Pick the best answer.

• a. As mass and speed go up, the kinetic energy of an object increases.

• b. As mass and speed go down, the kinetic energy of an object increases.

• c. Increasing mass decreases kinetic energy. Increasing speed increases kinetic energy.

• d. Increasing mass increases kinetic energy. Decreasing speed increases kinetic energy.

Tags

NGSS.HS-PS3-2

If the mass of an object is doubled, how does this affect its kinetic energy, assuming the speed doesn't change?

• Kinetic energy remains the same

• Kinetic energy is halved

• Kinetic energy is doubled

• Kinetic energy is quadrupled

If the SPEED of an object is doubled, how does this affect its kinetic energy, assuming mass doesn't change?

• Kinetic energy remains the same

• Kinetic energy is halved

• Kinetic energy is doubled

• Kinetic energy is quadrupled

Tags

NGSS.HS-PS3-2

Car A has a mass of 1500 kg and is moving at 89 miles per hour. Car B has a mass of 1501 kg and is moving at 28 miles per hour. Which statement below best describes the kinetic energy of each car? Pick the BEST answer.

• Car A has more energy than Car B because it is traveling faster than Car B.

• Car A has more energy than Car B because it has a smaller mass than Car B.

• Car B has more energy than Car A because it had a bigger mass than Car A.

• Both cars have about the same energy because they have about the same mass.

Tags

NGSS.HS-PS3-2

The energy an object has due to its motion is called ​ ​ (a)   ​ and it means the more it moves the more thermal energy it will have

• kinetic energy

• radiation

• matter

• temperature

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In the diagram below, a 5 kg object is moving with a speed of 10 m/s, and a 10 kg object is moving with a speed of 5 m/s. Which object in the diagram has more kinetic energy?

• Both of the objects have the same amount of kinetic energy.

• The 5 kg object has more kinetic energy.

• The 10 kg object has more kinetic energy.

• Neither object has any kinetic energy.

Tags

NGSS.MS-PS3-1

The table lists the mass and speed of each of four objects. Which two objects have the same kinetic energy?

• A and D

• B and D

• A and C

• B and C

Tags

NGSS.MS-PS3-1

A wrecking ball is swinging towards a building that needs to be knocked down. If you wanted to make the wrecking ball hit the building with more kinetic energy, what could you change?

• Use a wrecking ball with a bigger mass

• Use a wrecking ball with a smaller mass

• Decrease the speed of the wrecking ball

• None of the above, the kinetic energy cannot be changed.

Tags

NGSS.HS-PS3-2

Which of the following would have the most kinetic energy? Pick the best answer.

• A huge train driving at 125 miles per hour

• A very small car driving at 125 miles per hour

• A motorcycle driving at 100 miles per hour

• A huge truck driving at 3 miles per hour

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following graphs best represents the relationship between mass and kinetic energy? Hint: Think about this... As mass goes up, kinetic energy goes ___________.

• a.

• b.

• c.

• d.

Tags

NGSS.MS-PS3-1