Kinetic and Potential Ex.
Kinetic Energy
Potential energy
Vocab.
Formula Problems
100
This type of energy is known as the energy associated with motion
What is kinetic energy
100
An object sits at the top of a hill at rest, what is the object’s kinetic energy?
What is 0
100
What is an example of potential energy A. Sitting on a chair B. Running away from a monster C. Falling into a hole
What is A
100
This is the unit of energy
What is A Joule
100
An object has a mass of 62.6 kg and is suspended at a height of 23.5 m. What is this objects Potential Energy?
What is 14,416.8 J?
200
Potential energy is most commonly known as the energy of _______
What is position/height
200
what is the equation for kinetic energy?
What is 1/2mv^2
200
True Or False, an object that is moving down a hill but hasn’t reached the bottom yet still has potential energy?
What is True
200
What is the letter used for “the acceleration due to gravity”?
What is g?
200
An object with a mass of 83.9 kg is hanging at a height of 99 m. What is the objects Potential Energy?
What is 81,399.8 J?
300
The addition of kinetic and potential energies is known as the _______
What is mechanical energy/total energy
300
If the mass of an object doubles, what happens to the kinetic energy?
What is doubles or increases?
300
A rollercoaster sits at the bottom of the track with a total mechanical energy of 2kJ. How much of this energy is potential?
What is none or 0?
300
While an object is in motion it has this type of energy
What is Kinetic energy?
300
An object with a mass of 2000 kg is moving at 2 m/s. What is the objects Kinetic Energy?
What is 4,000 J?
400
A 2kg ball at the top of the hill 15m above the ground possesses how much potential energy?
What is 294J
400
An object possesses 56 Joules of energy at the top of hill when the object is at rest. What is the objects kinetic energy at the bottom of the hill?
What is 56 Joules?
400
True or false: a wrecking ball/pendulum is an example of potential energy?
What is true?
400
This is the word for the (m*g) in the potential energy equation, also known as the force of gravity
What is weight
400
An object with a mass of 437 kg is moving at a speed of 10 m/s. What is this objects Kinetic Energy?
What is 21,850 J?
500
What is the equation for calculating the mass of an object if you know the potential energy, and height of an object
m = GPE/gh
500
Suppose the speed of an object triples, how much does the kinetic energy increase by? Hint* think about the KE energy formula
What is a factor of 9 (or 9 times)?
500
The equation for potential energy contains what physical constant?
the acceleration due to gravity
500
Daily double: This type of energy is a part of mechanical energy and is gained through friction
What is thermal energy
500
An object with a mass of 139 kg is hanging at a height of 30 m above the ground. It then falls and reaches a speed of 30 m/s. What is the Potential Energy before it falls, and Kinetic Energy after it falls?
What is P.E=40,866 J, K.E= 62,550 J?