Kinetic Energy Calculations

Front

What is the Law of Conservation of Energy?

Back

Energy cannot be created or destroyed; it only changes form.

Front

What is Kinetic Energy?

Back

The energy an object possesses due to its motion, calculated as KE = 1/2 mv^2.

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy (KE) = 1/2 * mass (m) * velocity (v) squared (v^2).

Front

If a football has a mass of 0.45 kg and is thrown with a velocity of 10 m/s, what is its Kinetic Energy?

Back

22.5 J.

Front

If a golf club weighs 0.15 kg and swings at a velocity of 60 m/s, what is its Kinetic Energy?

Back

270 J.

Front

What happens to Potential Energy (PE) and Kinetic Energy (KE) at the highest point of a roller coaster?

Back

At the highest point, PE is maximum and KE is minimum.

Front

What happens to Potential Energy (PE) and Kinetic Energy (KE) at the lowest point of a roller coaster?

Back

At the lowest point, PE is minimum and KE is maximum.

Front

What is the relationship between Kinetic Energy and velocity?

Back

Kinetic Energy is proportional to the square of the velocity (KE ∝ v^2).

Front

Which graph shows the relationship between KE and velocity?

Back

The relationship is exponential, as KE increases with the square of velocity.

Front

What is the formula for calculating Kinetic Energy?

Back

KE = 1/2 mv^2.