Work & Power
Kinetic Energy
Potential Energy
Spring Energy
Conservation of Energy
100
The relative Work when 2 people lift the same 50 kg box to the same height.
What is they do the SAME WORK?
100
An object has Kinetic Energy when it is ___________.
What is MOVING?
100
Potential energy (from gravity) depends on these two primary factors: an object's mass and ______.
What is HEIGHT?
100
In the spring energy equation, k represents _______.
What is the SPRING CONSTANT?
100
A ball is on a 20m hill moving at 3 m/s. What form(s) of energy does the ball have?
What is both POTENTIAL AND KINETIC Energy?
200
Chris does 30 J of Work in 2.6 seconds. Aleah does 40 J of work in 2.9 seconds. Who has higher Power?
What is ALEAH?
200
The factor by which the Kinetic Energy of an object increases when the mass is doubled.
What is a DOUBLED / factor of TWO)?
200
A 1.25 kg book is sitting on a shelf 2.4 meters above the floor. Calculate U:
What is 29.4 Joules?
200
A spring with a spring constant of 150 N/m is compressed by 0.15 meters. Calculate the stored elastic potential energy.
What is 1.688 Joules?
200
A ball is on the ground resting against a spring that is not compressed. What form(s) of energy does this system have?
What is NO ENERGY?
300
A student uses a force of 45.5 N to push a crate 12.2 meters across a floor. Calculate the work done.
What is 555.1 Joules?
300
A 5.4 kg shotput is thrown with a velocity of 3.2 m/s. Calculate its kinetic energy.
What is 27.65 Joules?
300
If you move an object to a planet with half the gravity of Earth but keep it at the same height, its potential energy will change by this much.
What is cut in half?
300
In the Spring Energy equation, the spring constant and compression distance have a ______ relationship.
What is an inverse relationship?
300
The Total Energy at this point: 
What is 7121.9 J?
400
In the POWER Equation, Power and Time have a ______ relationship:
What is an INVERSE relationship?
400
Two objects have equal kinetic energy. The object with more mass has ______ velocity.
What is LOWER velocity?
400
Mass and potential energy have a _____ relationship.
What is a direct relationship?
400
Because the compression distance (x) is squared, compressing a spring three times as far will increase the stored energy by this factor.
What is 9 times?
400
The height of the hill: 
What is 3.18m?
500
A 121.5 N mass is lifted 3.5 meters up in 5.1 seconds. Calculate the Power generated.
What is 83.4 Watts?
500
A 0.45 kg soccer ball is kicked and currently has 132.84 Joules of kinetic energy. What is the velocity of the ball?
What is 24.3 m/s?
500
A 65.2 kg climber has 8,450 J of potential energy. How far above the ground is the climber?
What is 13.22m?
500
A heavy-duty spring (k = 2,500 N/m) stores 312.5 Joules of energy. How far is it compressed?
What is x = 0.5m?
500
The final velocity: 
What is 16.4 m/s?