Energy Unit

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving ones, transferring energy.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance. It increases as the speed of the particles increases.

Front

How does heat transfer from the sand to a boy's feet?

Back

Heat is transferred from the sand to the boy's feet through conduction.

Front

What form of energy is stored in food?

Back

The form of energy stored in food is chemical energy.

Front

What are the forms of energy that electrical energy can be converted into?

Back

Electrical energy can be converted into light, sound, and mechanical energy.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as light or heat from the sun.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is the difference between thermal energy and temperature?

Back

Thermal energy is the total energy of all particles in a substance, while temperature is a measure of the average kinetic energy of those particles.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food or fuel, which can be released during a chemical reaction.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object, related to its motion and position.