Kinetic and Potential Ex.
This type of energy is known as the energy associated with motion
kinetic energy
An object sits at the top of a hill at rest, what is the object’s kinetic energy?
What is 0
What is an example of potential energy
A. Sitting on a chair
B. Running away
C. Falling into a cliff
A
This is the unit of energy
Joule
Potential energy is most commonly known as the energy of _______
position/height
what is the formula for kinetic energy?
KE= 1/2mv^2
True Or False, an object that is moving down a hill but hasn’t reached the bottom yet still has potential energy?
True
What is the letter used for “the acceleration due to gravity”?
g
The addition of kinetic and potential energies is known as the _______
mechanical energy/total energy
If the mass of an object doubles, what happens to the kinetic energy?
doubles or increases
A rollercoaster sits at the bottom of the track with a total mechanical energy of 2kJ. How much of this energy is potential?
none or 0?
While an object is in motion it has this type of energy
Kinetic energy
Kinetic energy
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?
56 Joules
True or false: a wrecking ball/pendulum is an example of potential energy?
true
This is the word for the (mg) in the potential energy equation, also known as the force of gravity
weight
What is formula in computing the potential energy?
PE=mass x gravity x height
Mechanical Energy is the addition of these two energies
Kinetic + Potential
The equation for potential energy contains what physical constant?
gravity
Daily double: This type of energy is a part of mechanical energy and is gained through friction
heat/thermal energy