Kinetic and Potential Energy

Front

What is kinetic energy?

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?

Back

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

Front

At what position does a rock have the greatest kinetic energy when dropped?

Back

The rock has the greatest kinetic energy just before it hits the ground, as it has converted most of its potential energy into kinetic energy.

Front

Where would a baseball have the least amount of kinetic energy?

Back

A baseball would have the least amount of kinetic energy when it is at rest (not moving), such as when it is held in a person's hand.

Front

At which point of a roller coaster is potential energy the greatest?

Back

Potential energy is greatest at the highest point of the roller coaster, where the height is maximum.

Front

What type of energy is associated with an object at rest at a height?

Back

The type of energy associated with an object at rest at a height is potential energy.

Front

How does increasing an object's mass affect its kinetic energy?

Back

Increasing an object's mass will increase its kinetic energy, as kinetic energy is directly proportional to mass.

Front

What is the relationship between kinetic energy and velocity?

Back

Kinetic energy is proportional to the square of the velocity; if the velocity doubles, the kinetic energy increases by a factor of four.

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 the formula for calculating kinetic energy?

Back

The formula for calculating kinetic energy is KE = 1/2 mv².