Work
Power
Potential Energy
Kinetic Energy
Units and Variables
100

These are the values you multiply to calculate work, including the correct units.

What are force (N) and distance (m)?

100

These are the values you divide to calculate power used, including correct units.

What are work/energy (J) and time (s)?

100
This is the variable that affects an object's potential energy the most.
What is the height of the object?
100
This is the variable that affects an object's kinetic energy the most.
What is its velocity?
100
d
What are meters?
200

This is how much work you are doing if you push on a brick wall with 30 N of force.

What is none? (Because the wall doesn't move.)

200
Decreasing this will increase how much power you need to lift an object.
What is time?
200
This is the point on a roller coaster when the train has the most potential energy.
What is the top of the highest hill?
200
This was the point on your roller coaster when your marble had the highest amount of kinetic energy.
What is the lowest point on the track?
200
m
What are kilograms?
300
The work done by a bowling ball that has a 20N force and travels 10m.
What is 200 Joules?
300
Sally applies 25 Joules of work over a distance of 5 meters in a time of 15 seconds. She uses this amount of power.
What is 1.66 Watts?
300
The potential energy for a 20 kg object that is falling from a height of 20 meters is this at its maximum.
What is 3920 joules?
300
This is the kinetic energy of a 10 kg bowling ball moving 5 m/s as it strikes the pins.
What is 125 Joules?
300
F
What are newtons?
400
Jeffrey applies 600 Joules of work to a wheel barrow over a distance of 15 meters. This is the amount of force required.
What is 40 Newtons?
400
Juan has a dog sled team. The dogs apply 500 Joules of work while pulling the sled, using 25 watts of power to travel a distance of 30 m. This is how much time it takes them.
What is 20 seconds?
400
A book that is sitting on a table has a mass of 3 kg and 20.6 J of potential energy. This is how tall the table is.
What is 0.7 m? (20.6 J/(3 kg*9.8 n/kg))
400
A 25 kg care package that is dropped from a helicopter has 1250 J of kinetic energy before it hits the ground. This is how fast it's going before it hits the ground.
What is 10 m/s?
400
W or E
What are joules?
500
This is how much energy is required to lift 3 boxes that are each 5 N from the floor to a table that is 0.75 m high.
What is 11.25 Joules?
500
Fabian applies a 50 Newton force to an ax while chopping wood. His swing is a distance of 2m. It takes him 2 seconds to have one full swing. This is the power needed by Fabian for each axe swing.
What is 50 Watts?
500
When it reaches the bottom of a hill, a 1500 kg car is moving 35 m/s. This is how much potential energy it had at the top of the hill.
What is 918,750 Joules? (0.5*1500 kg*35 m/s^2)
500
A 5 kg rock falls to the ground from a 4-m high roof. This is its kinetic energy just before it strikes the ground.
What is 196 J?
500
P
What are watts?
M
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