Work & Power Flashcard

Front

What is the definition of work in physics?

Back

Work is defined as the product of force and the distance over which it acts, measured in joules (J).

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is power in the context of physics?

Back

Power is the rate at which work is done or energy is transferred, measured in watts (W).

Front

What is the formula for calculating power?

Back

Power = Work / Time.

Front

If you do the same amount of work in less time, what happens to your power?

Back

Your power increases.

Front

What are the units of power?

Back

The unit of power is the watt (W), which is equivalent to one joule per second.

Front

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

Back

Power is the amount of work done per unit of time.

Front

If a person lifts a weight of 200 N to a height of 10 m, how much work is done?

Back

Work = Force x Distance = 200 N x 10 m = 2000 J.

Front

What is the unit of work?

Back

The unit of work is the joule (J).

Front

How does increasing the force affect the work done?

Back

Increasing the force increases the work done, assuming the distance remains constant.