Conservation of Energy

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What types of energy does a television transform electrical energy into?

Back

Light, thermal, and sound energy.

Front

What happens to potential energy when an object is raised to a higher position?

Back

The potential energy of the object increases.

Front

What happens to kinetic energy and potential energy in a swinging pendulum?

Back

As the pendulum swings down, potential energy decreases while kinetic energy increases.

Front

What occurs to a skydiver's energy as they fall?

Back

The skydiver gains kinetic energy and loses potential energy.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

Define potential energy.

Back

Potential energy is the stored energy of an object due to its position or state, commonly gravitational potential energy, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of kinetic and potential energy in an object, representing the total energy of motion and position.

Front

How does energy transformation occur in a light bulb?

Back

In a light bulb, electrical energy is transformed into light energy and thermal energy.

Front

What is the relationship between energy and work?

Back

Work is done when energy is transferred from one system to another, calculated as Work = Force x Distance.