Work and Power Problems

Front

SI unit for Power is _____

Back

Watt

Front

A force of 8 Newton pushes a 2 kilogram object across a level floor for 10 meters in 3 seconds. How much work is done?

Back

80 J

Front

The more POWER you use to move an object, the more work you do. True or False?

Back

False

Front

100 J of work is done on a 60 kg object over a distance of 19 m in 23 seconds. What is the power done on the object?

Back

4.3 sec

Front

How much time is needed to produce 720 Joules of work if 90 watts of power is used?

Back

8 s

Front

Work is defined as _____

Back

the product of force and distance in the direction of the force.

Front

The formula for calculating Power is _____

Back

Power = Work / Time

Front

If 50 Joules of work is done in 5 seconds, what is the power?

Back

10 Watts

Front

What is the relationship between Work, Power, and Time?

Back

Power is the rate at which work is done over time.

Front

What is the formula for Work?

Back

Work = Force x Distance