KE & PE New Flashcard, 24-25, gk

Front

What is Kinetic Energy (KE)?

Back

Kinetic Energy (KE) is the energy that 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 (PE)?

Back

Potential Energy (PE) is the energy stored in an object due to its position or configuration, commonly calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity.

Front

What is the unit of Kinetic Energy?

Back

The unit of Kinetic Energy is Joules (J).

Front

If a soccer ball has a mass of 2.9 kg and moves at 30 m/s, what is its KE?

Back

The KE of the soccer ball is 1305 J.

Front

What is the relationship between mass and Kinetic Energy?

Back

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

Front

What happens to Kinetic Energy if the velocity of an object doubles?

Back

If the velocity of an object doubles, its Kinetic Energy increases by a factor of four, since KE is proportional to the square of the velocity.

Front

How do you find the mass of an object if you know its Kinetic Energy and velocity?

Back

You can find the mass using the formula m = 2KE/v².

Front

What is Gravitational Potential Energy (GPE)?

Back

Gravitational Potential Energy (GPE) is the energy an object possesses due to its height above the ground, calculated using the formula GPE = mgh.

Front

At which point is Kinetic Energy decreasing while Gravitational Potential Energy is increasing?

Back

Kinetic Energy is decreasing while Gravitational Potential Energy is increasing as the object moves upward.