Work and Power

Front

What is Work?

Back

Work is defined as the amount of energy transferred when a force is applied to an object over a distance. It is calculated using the formula: Work = Force x Distance.

Front

What is Power?

Back

Power is the rate at which work is done or energy is transferred. It is calculated using the formula: Power = Work / Time.

Front

What unit is used to measure Work?

Back

The unit of work is the Joule (J). One Joule is equal to the work done when a force of one newton moves an object one meter.

Front

What unit is used to measure Power?

Back

The unit of power is the Watt (W). One Watt is equal to one Joule per second.

Front

What is the formula to calculate Power?

Back

Power = Work / Time.

Front

If a force of 10 newtons moves an object 5 meters, how much work is done?

Back

Work = Force x Distance = 10 N x 5 m = 50 Joules.

Front

How does the time taken affect Power?

Back

Power increases if the same amount of work is done in less time. Less time means more power.

Front

What is the relationship between Work, Force, and Distance?

Back

Work is directly proportional to both the force applied and the distance over which the force is applied.

Front

What is a Newton?

Back

A Newton (N) is the unit of force in the International System of Units (SI). It is defined as the force required to accelerate a one-kilogram mass by one meter per second squared.

Front

What is the significance of the slope of a ramp in Work?

Back

The slope of a ramp affects the distance over which the force is applied, which can influence the amount of work done.