(P7) Physics Lessons 6-11 Flashcard Review

Front

What has more thermal energy: A small glass or a large glass of water at the same temperature?

Back

A large glass has more thermal energy because it contains more water, which means more total energy.

Front

What is an insulator?

Back

An insulator is a material that is a poor conductor of heat and electricity, preventing the flow of energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion, which depends on the mass and speed of an object.

Front

What type of circuit exists when classroom lights are ON?

Back

A closed circuit exists when classroom lights are ON, allowing electricity to flow.

Front

What two components does thermal energy depend on?

Back

Thermal energy depends on mass and temperature.

Front

What is potential energy?

Back

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

Front

What is the difference between conductors and insulators?

Back

Conductors allow the flow of electricity and heat, while insulators do not.

Front

What is gravitational energy?

Back

Gravitational energy is the potential energy held by an object because of its height above the ground.

Front

What happens in an open circuit?

Back

In an open circuit, the flow of electricity is interrupted, and devices do not work.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.