Work and Power

Front

Formula of work:

Back

W = F x d

Front

How much power is needed to move a 120 N box 3 meters in 6 seconds?

Back

60 W

Front

The unit of distance is ___________

Back

meter (m)

Front

You do 90 joules of work in 30 seconds. How much power have you generated?

Back

3 watts

Front

You do 100J of work when you walk up 4 meters of stairs. How much force do you have?

Back

25 N

Front

What is the formula for power?

Back

P = W / t

Front

What does 'W' stand for in the formula W = F x d?

Back

Work

Front

What is the unit of power?

Back

Watt (W) or Joules per second (J/s)

Front

If you apply a force of 10 N to move an object 5 meters, how much work is done?

Back

50 J

Front

If a machine does 200 J of work in 10 seconds, what is its power output?

Back

20 W