Kinetic and Potential Ex.
This type of energy is known as the energy associated with motion
What is kinetic energy
An object sits at the top of a hill at rest, what is the object’s kinetic energy?
What is 0
Mechanical Energy is the addition of these two energies
What is Kinetic + Potential?
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
This is the unit of energy
What is A Joule
Potential energy is most commonly known as the energy of _______
What is position/height
what is the equation for kinetic energy?
What is 1/2mv^2
An object possesses 15J of potential energy and 5J of kinetic energy. What is the Mechanical energy
What is 20J?
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
What is the letter used for “the acceleration due to gravity”?
What is g?
The addition of kinetic and potential energies is known as the _______
What is mechanical energy/total energy
If the mass of an object doubles, what happens to the kinetic energy?
What is doubles or increases?
Suppose the total mechanical energy is entirely equal to the potential energy, where is the object?
Where is at the top of a hill, rollercoaster, maximum height?
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?
While an object is in motion it has this type of energy
What is Kinetic energy?
A 2kg ball at the top of the hill 15m above the ground possesses how much potential energy?
What is 300J (if g=10)/294J (if g=9.8)
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?
Suppose an object is entirely equal to the kinetic energy, where is the object?
Where is the bottom of a hill, minimum height?
True or false: a wrecking ball/pendulum is an example of potential energy?
What is true?
This is the word for the (mg) in the potential energy equation, also known as the force of gravity
What is weight
What is the equation for calculating the velocity of an object when dealing with potential/mechanical energy and what is it independent of?
What is sqrt(2gh) and independent of mass
Suppose the speed of an object triples, how much does the kinetic energy increase by?
What is a factor of 9 (or 9 times)?
Daily Double: What are the standard SI units for Joules?
What is kg*m^2/s^2
The equation for potential energy contains what physical constant?
the acceleration due to gravity
Daily double: This type of energy is a part of mechanical energy and is gained through friction
What is thermal energy