KE & PE New Flashcard, 24-25, gk

Front

What is Kinetic Energy (KE)?

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 (PE)?

Back

Potential Energy 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 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 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 a cat has a mass of 4.5 kg and is running at 4 m/s, what is its Kinetic Energy?

Back

36 J (calculated using KE = 1/2 mv²).

Front

If a body has a Kinetic Energy of 500 J and a mass of 2 kg, what is its velocity?

Back

22.36 m/s (calculated using the formula v = sqrt(2KE/m)).

Front

What is the formula to find the mass of an object if its Kinetic Energy and velocity are known?

Back

The mass can be found using the formula m = 2KE/v².

Front

What is Gravitational Potential Energy (GPE)?

Back

Gravitational Potential Energy is the potential energy held by an object because of its height above the ground, calculated using the formula GPE = mgh.

Front

If Ty lifts 1200 kg weights to a height of 1.5 m, what is the Potential Energy gained?

Back

17,640 J (calculated using PE = mgh).