Unit 4 Review Quizizz

A 10 N force is exerted on a box, moving it 20 m in the same direction. How much work is done on the box?

• 10 J

• 30 J

• 200 J

• 2 J

Calculate the potential energy of a 3 kg bowling ball suspended 2 meters about the ground. (Remember Gravitational Potential Energy = mass x 9.8 x height )

• 6 J

• 1 J

• 0.66 J

• 58.8 J

Tags

NGSS.MS-PS3-2

Work (energy) is measured in the unit of:

• Watts

• Joules

• Newtons

• Joules per second

Potential Energy and Kinetic Energy combine to give us

• Mechanical Energy

• Elastic Energy

• Non-mechanical energy

What type of energy is associated with an object in motion?

• Gravitational potential energy

• Kinetic energy

• Non-mechanical energy

• Elastic energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is a unit for Power?

• Watts

• Joules

• Newtons

• Joules per second

If a powerlifter raises a 1000 N weight a distance of 2 meters in 2 seconds, what is his work done and power output?

Work = Force x distance

Power = Work / time

• Work = 500 J, and

  Power = 250 W

• Work = 500 J, and

  Power = 1000 W

• Work = 2000 J, and

  Power = 4000 W

• Work = 2000 J, and

  Power = 1000 W

Tags

NGSS.HS-PS3-2

• 392 m/s

• 28 m/s

• 784 m/s

• 4.08 m/s

Tags

NGSS.HS-PS2-1

• 5 J

• 200 J

• 2.5 J

• 400 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

If an 80 kg climber is on the top of Mount Everest (8848 meters height), what is there potential energy if they were to fall all the way down to see level?

(Remember GPE = mass x 9.8 x height )

Mathematical Equivalence

ON