Work-Energy Theorem Practice

Work is equal to the change in _______

• Kinetic Energy

• Potential Energy

• Total Mechanical Energy

• Power

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A truck that has a mass of 500 kg is moving at 15 m/s. There is a total of 300 J of work done on the truck, what is the final kinetic energy of the truck?

• 56,550 J

• 56,550 N

• −55,950 J

• −55,950 N

Tags

NGSS.HS-PS3-1

A runner begins at a speed of 2 m/s. By the middle of the race, the runner is at a speed of 6 m/s. The runner has a mass of 60 kg. How much work was done?

• 1200 J

• 1200 N

• 960 J

• 960 N

Tags

NGSS.HS-PS3-1

A 70 kg gymnast somersaults onto a mat at a speed of 10 m/s. When she is finished with the flip, she is moving at 4 m/s. How much work was done during the flip?

• 2,940 J

• -2,940 J

• 2,940 N

• -2,940 N

Tags

NGSS.HS-PS3-1

How much work does it take to get a 300 kg roller coaster car to go from 0 m/s to 70 m/s?

• 73,500 J

• 73,500 N

• 0 J

• 0 N

Tags

NGSS.HS-PS3-1

A car that has a mass of 500 kg is moving at 20 m/s. There is a total of 30,00 J of work done on the car, what is the final velocity of the car?

• 17 m/s

• 50 m/s

• 23 m/s

• 25 m/s

Tags

NGSS.HS-PS3-1

A 55 kg runner begins a race at a speed of 5 m/s, by the time she is halfway through the race she is moving at a speed of 8 m/s. Was work done during this time?

• Yes

• No

Tags

NGSS.HS-PS2-1

NGSS.HS-PS3-1

A 70 kg runner starts a race from rest, he then runs a perfect circle track and ends the race at rest. Did he do work?

• Yes

• No

Tags

NGSS.HS-PS3-2

A person pushed a 10 kg shopping cart at a velocity of 5 m/s. They slow down to 3 m/s to look through the aisle, and then increase back up to 5 m/s. Overall, was work done on the shopping cart?

• Yes

• No

Tags

NGSS.HS-PS2-1

NGSS.HS-PS3-1

A person is pushing a 10 kg shopping cart at a velocity of 5 m/s. They increase their speed to 7 m/s to get around someone and then keep going that velocity. Overall, was work done on the shopping cart?

• Yes

• No

Tags

NGSS.HS-PS2-1