Work energy power

Front

What is the definition of work in physics?

Back

Work is done when a force acts on an object and causes it to move in the direction of the force.

Front

What is the formula for calculating work?

Back

W = F * d, where W is work, F is force, and d is distance.

Front

What is kinetic energy (KE)?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 m v².

Front

What is potential energy (PE)?

Back

Potential energy is the energy stored in an object due to its position or configuration.

Front

What is the formula for gravitational potential energy?

Back

PE = m * g * h, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is total mechanical energy?

Back

Total mechanical energy is the sum of kinetic energy and potential energy in a system.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in its energy.

Front

What is power in the context of work and energy?

Back

Power is the rate at which work is done or energy is transferred, calculated as P = W/t.

Front

What is the unit of work in the International System of Units (SI)?

Back

The unit of work is the Joule (J).

Front

What does it mean for force and distance to be in the same direction?

Back

It means that the force applied to an object causes it to move in the direction of the force, allowing work to be done.