Work and Power

Front

What is Work in physics?

Back

Work is done when a force causes an object to move in the direction of the force. It is calculated as Work = Force x Distance.

Front

What are the conditions required to do Work?

Back

1. A force must be exerted. 2. The object must move. 3. The object must move in the same direction as the force.

Front

Which of the following is NOT a condition to do work?

Back

The object must accelerate.

Front

What is Power in physics?

Back

Power is the rate at which work is done or energy is transferred, calculated as Power = Work / Time.

Front

How does time affect Work?

Back

Time does not affect the amount of work done; work is only dependent on force and distance.

Front

If you walk up stairs faster, what happens to the Work done?

Back

The amount of Work done remains the same regardless of the speed of ascent.

Front

What happens to Power if you carry a heavier backpack at the same speed?

Back

Power would increase because the work done against gravity increases with the added weight.

Front

Is talking on the phone considered Work in physics?

Back

No, talking on the phone does not involve moving an object in the direction of a force.

Front

What is the formula for calculating Work?

Back

Work = Force x Distance.

Front

What is the relationship between Work and Energy?

Back

Work is a transfer of energy; when work is done, energy is transferred from one system to another.