Power & Work Review

Front

Pushing against the wall. Is it an example of work?

Back

NO, work is done when a force causes displacement. In this case, there is no displacement.

Front

What is the unit for force?

Back

Newton (N) is the unit for force in the International System of Units (SI).

Front

work / time is the formula to calculate ____________.

Back

Power is calculated by dividing work by time.

Front

Work = Force x _________

Back

distance. Work is the product of force and the distance over which it acts.

Front

What is the unit for work?

Back

Joule (J) is the unit for work in the International System of Units (SI).

Front

Define work in physics.

Back

Work is defined as the transfer of energy that occurs when an object is moved over a distance by an external force.

Front

What is the relationship between work and energy?

Back

Work is a means of transferring energy from one system to another.

Front

What is the formula for calculating power?

Back

Power = Work / Time.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv².

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, commonly gravitational potential energy.