Power and Work

Work and Power

January 12, 2021

Multiple Choice

What units are used for work?

• Newtons

• Joules

• meters

Multiple Choice

Which variable DOES NOT determine the amount of work done on an object?

• joules

• force

• time

• distance

Open Ended

David uses 25 N of force to push a stroller 10 meters. How much work does David do?

Open Ended

Rachel pushes on a rock for 12.0 seconds with a force of 7 newtons. The rock doesn't even move 1 cm! How much work did Rachel do on the rock?

Practice Break!!!

Take 10 minutes to being working on the "Work" portion of your practice.

Multiple Choice

What units are used for power?

• joules

• seconds

• Newtons

• watts

• meters

Open Ended

Explain the difference between work and power.

Open Ended

How much power does it take to lift 15.0 N 10.0 m high in 6.00 s?

Open Ended

A 70 watt light bulb runs for 15.0 seconds. How much energy does it use?