NEW_Energy Transfers and Transformations

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as chemical energy to thermal energy.

Front

Give an example of energy transformation in a burning log.

Back

When a log burns, the chemical energy stored in the log is transformed into thermal energy (heat).

Front

What energy transformations occur in an electric pencil sharpener?

Back

The energy transformations in an electric pencil sharpener are electrical energy to mechanical energy to thermal energy.

Front

What type of energy does a solar-powered car convert?

Back

A solar-powered car converts light energy into mechanical energy.

Front

Why does potential energy decrease when a ball rolls down a ramp?

Back

The potential energy of the ball decreases because it is converted into kinetic energy as it rolls down.

Front

What is energy transfer?

Back

Energy transfer is the movement of energy from one object to another without changing its form.

Front

What is an example of energy transfer?

Back

An example of energy transfer is when heat energy moves from a hot object to a cooler one.

Front

What is the difference between energy transformation and energy transfer?

Back

Energy transformation involves changing energy from one form to another, while energy transfer involves moving energy without changing its form.

Front

What happens to the energy in a system when work is done?

Back

When work is done on a system, energy is transferred into the system, often increasing its kinetic or potential energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, dependent on its mass and velocity.