Potential and Kinetic Energy

Front

What is the definition of work in physics?

Back

Work is the exertion of force over a distance, calculated as the product of force and displacement in the direction of the force.

Front

What is Kinetic Energy (KE)?

Back

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

Front

What is Potential Energy (PE)?

Back

Potential Energy is the stored energy in an object due to its position or state, often associated with gravitational energy.

Front

How does Kinetic Energy change with speed?

Back

Kinetic Energy increases with the square of the speed; as speed doubles, KE increases by a factor of four.

Front

What is the unit of energy in the International System of Units (SI)?

Back

The unit of energy is the Joule (J).

Front

What happens to Potential Energy when an object is lifted higher?

Back

Potential Energy increases as the height of the object increases due to the gravitational force acting on it.

Front

What is the relationship between Kinetic Energy and mass?

Back

Kinetic Energy is directly proportional to the mass of the object; if mass increases, KE increases.

Front

What is an example of an object with maximum Potential Energy?

Back

A book placed on a high shelf has maximum Potential Energy due to its elevated position.

Front

What is an example of an object with maximum Kinetic Energy?

Back

A rolling ball at its highest speed has maximum Kinetic Energy.

Front

What is the principle of conservation of energy?

Back

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