Unit 6 Work and Energy Review

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

Define kinetic energy (KE).

Back

Front

What is gravitational potential energy (PE)?

Back

Front

Explain the relationship between work and energy.

Back

Work is done when a force causes an object to move, and it is equal to the change in energy of that object. The work-energy theorem states that the work done on an object is equal to the change in its kinetic energy.

Front

What is the formula for calculating work (W)?

Back

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, momentum is conserved, but kinetic energy is not.

Front

Define mechanical energy.

Back

Mechanical energy is the sum of kinetic energy and potential energy in a system, representing the total energy available for doing work.

Front

What is the work-energy theorem?

Back

Front

How does mass affect gravitational potential energy?

Back

Gravitational potential energy increases with mass; doubling the mass of an object will double its potential energy at a given height.

Front

What is the formula for calculating change in kinetic energy (ΔKE)?

Back