Calculating Work & Power

How do you know when a force has been applied to an object?

• It moves.
• It flies.
• It accelerates.
• It gets bigger.

Tags

NGSS.HS-PS2-1

Newtons are the correct unit for which of the following?

• Force

• Work

• Power

• Acceleration

Tags

NGSS.HS-PS2-1

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

How do we calculate work?

• W = F * d
• w = f * D
• W = F * D
• w = f * d

Which is the correct unit for work?

• Joules

• Newton

• meter

• Watts

Tags

NGSS.MS-PS3-5

How do you calculate power?

• P = W/t
• P = E/t
• P = w * t
• P = bbq/chicken

What is the correct unit for power?

• Watt

• Joules

• Newtons

• seconds

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

• 2 J
• 0.5 J

Tags

NGSS.HS-PS3-1

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.HS-PS3-2

It took 500 newtons of force to push a car 4 meters.  How much work was done?

• 2,000 J
• 125 J