Work and Power

Front

What is Work in physics?

Back

Work is defined as the product of the force applied to an object and the distance the object moves in the direction of the force. It is calculated using the formula: Work (W) = Force (F) × Distance (d).

Front

What is Power in physics?

Back

Power is the rate at which work is done or energy is transferred over time. It is calculated using the formula: Power (P) = Work (W) / Time (t).

Front

What unit is used to measure Work?

Back

The unit of work is the Joule (J), which is defined as the work done when a force of one newton displaces an object by one meter.

Front

What unit is used to measure Power?

Back

The unit of power is the Watt (W), which is defined as one joule per second.

Front

How does increasing the time taken to do work affect power?

Back

Increasing the time taken to do the same amount of work decreases the power output, as power is inversely proportional to time.

Front

If no distance is moved, what is the work done?

Back

If the distance moved is zero, the work done is also zero, regardless of the force applied.

Front

What is the relationship between work, force, and distance?

Back

Work is directly proportional to both the force applied and the distance moved in the direction of the force.

Front

How do you calculate the power generated when moving an object?

Back

To calculate power, divide the work done by the time taken: Power (P) = Work (W) / Time (t).

Front

What happens to power if you increase work while keeping time constant?

Back

If you increase the work done while keeping the time constant, the power output increases.

Front

What is the formula to calculate force if work and distance are known?

Back

Force can be calculated using the formula: Force (F) = Work (W) / Distance (d).