Work and Energy Formulas

The net work done by a net force acting on an object is equal to the change in the kinetic energy of the object.

• Force-Work Theorem
• Work-Kinetic Energy Theorem
• Force-Kinetic Energy Theorem
• Work-Force Theorem

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

• 9
•  3 
• 1.5
• 4.5

True or false: the net work done on a body is equal to its change in kinetic energy.

• True
• False

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What does work equal when the final change in kinetic energy equals 20,000 J?

• 0J

• 2041J

• 20,000J

• 4164931J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A ball is thrown up into the air. If the zero point is at the max height of the ball, what kind of energy does the ball have at the very top?

• Kinetic Energy

• Gravitational Potential Energy

• Spring Potential Energy

• No Energy

Tags

NGSS.MS-PS3-2

Which of the following statements are true about work?

• Work is a form of energy.

• A Watt is the standard metric unit of work.

• Work is a time-based quantity; it is dependent upon how fast a force displaces an object.

• None of these.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS3-1

Which of the following statements are true about kinetic energy?

• None of these

• Kinetic energy is the form of mechanical energy which depends upon the position of an object.

• If an object is at rest, then it does not have any kinetic energy.

• If an object is on the ground, then it does not have any kinetic energy.

Tags

NGSS.HS-PS3-2

To find gravitational potential energy, you need which two variables?

• mass, force

• force, distance

• mass, velocity

• height, mass

Tags

NGSS.MS-PS3-2

45 J of work were done on the object that moved 5 meters. How much force was applied to the object?

• 8 N

• 225 N

• 9 N

• 0 N

Tags

NGSS.HS-PS2-1

A 10.0 kg box is accelerated from 2.0 m/s to 4.0 m/s. What is the amount of work needed to accelerate the box?

• 50 J

• 60 J

• 20 J

• 45 J

Tags

NGSS.HS-PS3-1