HW4.2 Conservation of Energy

Front

What is the formula for Gravitational Potential Energy?

Back

GPE = mass x gravity x height

Front

What is Kinetic Energy?

Back

Energy that an object possesses due to its motion.

Front

How does mass affect Kinetic Energy?

Back

Kinetic Energy increases with mass.

Front

What happens to Kinetic Energy when velocity doubles?

Back

Kinetic Energy increases by a factor of four (KE = 1/2 mv^2).

Front

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

Back

Joule (J)

Front

What is the relationship between height and Gravitational Potential Energy?

Back

GPE increases as height increases.

Front

If a 10 kg object is lifted to a height of 5 m, what is its Gravitational Potential Energy?

Back

GPE = 10 kg x 9.81 m/s² x 5 m = 490.5 J

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What type of energy does a stationary object possess?

Back

Potential Energy.

Front

What is the effect of friction on mechanical energy?

Back

Friction converts mechanical energy into thermal energy, reducing total mechanical energy.