Kinetic Energy vs. Potential Energy - Test REVIEW

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

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created nor destroyed, only transformed from one form to another or transferred between objects.

Front

How do you calculate the kinetic energy of an object?

Back

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

Front

What factors affect potential energy?

Back

Potential energy is affected by the mass of the object, the height of the object above a reference point, and the strength of the gravitational field.

Front

What is the formula for gravitational potential energy?

Back

The formula for gravitational potential energy (PE) is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

If an object has a mass of 10 kg and a kinetic energy of 20 J, what is its velocity?

Back

The velocity can be calculated using the formula KE = 1/2 mv². Rearranging gives v = sqrt(2KE/m). For 20 J and 10 kg, v = 2 m/s.

Front

What is the relationship between mass and potential energy?

Back

Potential energy is directly proportional to the mass of the object; as mass increases, potential energy increases if height remains constant.

Front

How does height affect potential energy?

Back

Potential energy increases with height; the higher an object is positioned, the greater its potential energy due to the increased distance from the reference point.

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).