KE vs. PE Energy

Front

What is Kinetic Energy (KE)?

Back

Kinetic Energy is the energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is Potential Energy (PE)?

Back

Potential Energy is the energy stored in an object due to its position or state, commonly calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

How is energy transformed in a gasoline-powered car engine?

Back

In a gasoline-powered car engine, chemical energy from fuel is transformed into mechanical energy to power the vehicle.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy (KE) is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

What type of energy transformation occurs in a toaster?

Back

In a toaster, electrical energy is transformed into thermal energy to toast the bread.

Front

What is the relationship between mass and Kinetic Energy?

Back

Kinetic Energy is directly proportional to the mass of the object; as mass increases, Kinetic Energy increases if velocity remains constant.

Front

What happens to Potential Energy as an object falls?

Back

As an object falls, its Potential Energy decreases while its Kinetic Energy increases, assuming no energy is lost to air resistance.

Front

What is an example of Potential Energy?

Back

An example of Potential Energy is a rock held at a height above the ground; it has gravitational potential energy due to its position.