KE PE Calculations Practice

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy an object possesses due to its motion. It is 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 state. It is often associated with gravitational potential energy, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

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

How do you calculate Potential Energy?

Back

Potential Energy (PE) is calculated using the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity (approximately 9.81 m/s²), and h is the height above the ground.

Front

What happens to Kinetic Energy when speed increases?

Back

As the speed of an object increases, its Kinetic Energy increases exponentially because it is proportional to the square of the velocity.

Front

What is the relationship between mass and Kinetic Energy?

Back

Kinetic Energy is directly proportional to the mass of the object. If the mass increases, the Kinetic Energy increases, assuming the velocity remains constant.

Front

What is the relationship between height and Potential Energy?

Back

Potential Energy is directly proportional to the height of an object. As the height increases, the Potential Energy increases, assuming mass remains constant.

Front

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

Back

The unit of energy in the SI system is the Joule (J).

Front

If an object has a mass of 75 kg and is moving at 30 m/s, what is its Kinetic Energy?

Back

The Kinetic Energy is 33,750 J, calculated using KE = 1/2 mv².

Front

Which has more Potential Energy: an object at a height of 10 m or at a height of 5 m?

Back

The object at a height of 10 m has more Potential Energy, assuming both have the same mass.