Work, Power, and Energy

Front

What is work in physics?

Back

Work is done when a force causes an object to move. It is calculated as the product of the force and the distance moved in the direction of the force.

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the SI unit of work?

Back

The SI unit of work is the joule (J).

Front

What is power in physics?

Back

Power is the rate at which work is done or energy is transferred.

Front

What is the formula for calculating power?

Back

Power (P) = Work (W) / Time (t).

Front

What is the SI unit of power?

Back

The SI unit of power is the watt (W).

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What happens to the work done if the distance is doubled while applying the same force?

Back

The work done is doubled, as work is directly proportional to distance.