Work and Energy Concepts

Front

What is the formula to calculate work?

Back

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

Front

If a pitcher throws a baseball with a kinetic energy of 150 J, how much work must be done on the ball?

Back

150 J of work must be done to give the ball that kinetic energy.

Front

What is defined as an energy transfer?

Back

Work is defined as an energy transfer.

Front

How do you calculate power?

Back

P = W/t, where P is power, W is work, and t is time.

Front

What must happen for work to be done when a force is exerted on an object?

Back

The object must move.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

What is potential energy?

Back

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

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 is the relationship between work and energy?

Back

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

Front

What is the formula for gravitational potential energy?

Back

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