Work and Power Problems

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) × Distance (d) in the direction of the force.

Front

What is the unit of work in the International System of Units (SI)?

Back

Joule (J)

Front

If a force of 50 N moves an object 4 m, how much work is done?

Back

200 J

Front

What is power in terms of work and time?

Back

Power (P) = Work (W) / Time (t)

Front

What is the unit of power in the International System of Units (SI)?

Back

Watt (W)

Front

If 1000 J of work is done in 10 seconds, what is the power?

Back

100 W

Front

How much work is done when a 30 N force moves an object 3 m?

Back

90 J

Front

What is the relationship between work, power, and time?

Back

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

Front

If a weightlifter lifts a 200 N weight 2 m, how much work is done?

Back

400 J

Front

What is the formula to calculate time when work and power are known?

Back

Time (t) = Work (W) / Power (P)