Power

How much power is generated by Ashley (50 kg) running up a 6 m flight of stairs in 5 seconds?

• 60 W

• 62 W

• 600 W

Tags

NGSS.MS-PS3-5

How much power was generated from 0-3 seconds?

• 1100 W

• 4 W

• 267 W

It takes 9 seconds to move an object 3 meters using a force of 6 Newtons. What's the power?

• 81 W

• 2 W

• 4 W

How much time does it take a machine with 1200 W power rating to do 42 kJ of work?

• 12 s

• 35 s

• 23 s

Which term describes the amount of work done divided by the time interval?

• Work

• Power

• Force

When a pendulum swings, at which point is kinetic energy highest?

• 1

• 2

• 3

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

When a pendulum swings, at which point is potential energy at its greatest?

• 1

• 2

• 3

Tags

NGSS.MS-PS3-2

If a machine uses 100 J of work to lift a heavy object in 10 seconds, how much power does it generate?

• 1000 W

• 10 W

• 1 W

How do you calculate power?

• P = w / t

• P = f * t

• P = w * t

Which of the following is the S.I. unit for work?

• Joules

• Watts

• Newtons