Energy : Potential, Kinetic and Mechanical 6th grade

Front

What is Potential Energy?

Back

Potential Energy is the stored energy in an object due to its position or state. For example, a rock at the top of a hill has potential energy because of its height.

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy of motion. Any object that is moving has kinetic energy, such as a rolling ball or a running person.

Front

What is Mechanical Energy?

Back

Mechanical Energy is the sum of potential energy and kinetic energy in an object. It is the total energy associated with the motion and position of an object.

Front

What is the formula for Mechanical Energy?

Back

Mechanical Energy = Potential Energy + Kinetic Energy.

Front

What is the relationship between Potential Energy and height?

Back

Potential Energy increases as the height of an object increases. The higher an object is, the more potential energy it has.

Front

What happens to Kinetic Energy when speed increases?

Back

Kinetic Energy increases as the speed of an object increases. It is directly proportional to the square of the speed.

Front

What is Energy Transformation?

Back

Energy Transformation is the process of changing energy from one form to another, such as converting potential energy into kinetic energy when an object falls.

Front

Give an example of Energy Transfer.

Back

An example of Energy Transfer is when a ball is thrown; the energy from the thrower's arm is transferred to the ball, giving it kinetic energy.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).

Front

How does friction affect Mechanical Energy?

Back

Friction can convert mechanical energy into thermal energy, causing a loss of mechanical energy in a system.