Law of conservation of energy

Front

What does the law of conservation of energy state?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

How does mass affect kinetic energy?

Back

As the mass of an object increases, its kinetic energy increases, assuming velocity remains constant.

Front

What is friction?

Back

Friction is a force that resists the motion of one surface over another.

Front

What type of energy do muscles convert into mechanical energy?

Back

Muscles convert chemical energy into mechanical energy.

Front

What are the energy transformations that occur in an alarm clock when it goes off?

Back

The energy transformations are from electrical energy to mechanical energy to sound energy.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is potential energy?

Back

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

Front

Explain the relationship between potential energy and height.

Back

Potential energy increases with height; the higher an object is, the more potential energy it has.

Front

What is the formula for calculating kinetic energy?

Back

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

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.