Simple Machines, Work, and Power

Newtons are the correct unit for which of the following?

• Force

• Work

• Power

• Acceleration

Tags

NGSS.MS-PS2-4

Which is the correct unit for work?

• Joules

• Newton

• meter

• Watts

Tags

NGSS.MS-PS3-5

The rate at which work is done.

• Joules
• Power
• Watts
• Newtons

What is the correct unit for power?

• Watt

• Joules

• Newtons

• seconds

It took 500 Newtons of force to push a car four meters. How much work was done?

• 2000 J

• 125 J

• 0.008 J

• 500 J

Tags

NGSS.HS-PS2-1

1. A book weighing 1.0 newton is lifted 2 meters.  How much work was done?

• 2 J
• 0.5 J

Tags

NGSS.MS-PS3-5

A force of 15 newtons is used to push a box along the floor a distance of 3 meters.  How much work was done?

• 3 J
• 45 J

Tags

NGSS.MS-PS3-5

What is the power of a kitchen blender if it can perform 3,750 Joules of work in 15 seconds?

• 250 W

• 0.004 W

• 56,250 W

• 25 W

How much power is used if a force of 35 Newtons is used to push a box a distance of 10 meters in five seconds? (Hint: Solve for work first. This is a 2-step problem.)

• 70 W

• 3.5 W

• 7 W

• 350 J

Tags

NGSS.HS-PS2-1

Match these units

• Work

• meters

• Distance

• J/s or Watts

• Power

• Joules

• Force

• Newtons

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5