Work and Power REVIEW

Front

What is the unit for mass?

Back

kilograms

Front

What is the formula for calculating work?

Back

Work = Force x Displacement

Front

What is the unit for work?

Back

Joules (J)

Front

What is the formula for calculating power?

Back

Power = Work / Time

Front

What is the unit for power?

Back

Watts (W)

Front

If a force of 100 N is applied over a distance of 5 m, how much work is done?

Back

500 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 10,000 J of work is done by a bulldozer outputting 1000 N of Force, what is the displacement?

Back

10 m

Front

What is the gravitational force acting on a mass of 10 kg?

Back

98 N (using g = 9.8 m/s²)

Front

What is the work done when lifting a 50 kg object to a height of 2 m?

Back

Work = 50 kg x 9.8 m/s² x 2 m = 980 J