Unit test review

Front

What is reflection in terms of light waves?

Back

Reflection is the bouncing back of light waves when they hit a medium through which they cannot pass.

Front

What type of energy is transferred from electrical energy?

Back

Electrical energy is transferred to thermal energy.

Front

What does it mean for forces to be unbalanced?

Back

Unbalanced forces cause an object to accelerate or change its motion.

Front

What happens when two forces are balanced?

Back

When two forces are balanced, the object remains at rest or continues to move at a constant speed.

Front

What is mechanical energy transferred to?

Back

Mechanical energy is transferred to electrical energy.

Front

Define refraction in the context of light waves.

Back

Refraction is the bending of light waves as they pass from one medium to another.

Front

What is an example of unbalanced forces in action?

Back

A baseball falling at a faster and faster speed is an example of unbalanced forces.

Front

What is the definition of thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is the energy of motion.

Front

What is an example of balanced forces?

Back

Two arm wrestlers exerting equal force on each other's hands without movement is an example of balanced forces.