Energy, Work, and Power

Front

What is the unit used to measure power?

Back

Watt

Front

Gravitational potential energy depends on which two factors?

Back

Height and mass

Front

How much time is needed to produce 720 Joules of work if 90 Watts of power is used?

Back

8 s

Front

What happens to the kinetic energy of a skater when they go faster?

Back

The Skater will be going faster

Front

What type of energy transfer occurs when an object moves from a higher position to a lower position?

Back

kinetic --> potential

Front

Define work in physics.

Back

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

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.

Front

What is the formula for gravitational potential energy?

Back

Potential Energy = mass × gravity × height (PE = mgh)

Front

What is the relationship between work and energy?

Back

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