Fundamental Forces
Universal Gravitation
Unit Conversion
Electromagnets
Electric Generators
100
This force is the weakest of the fundamental forces.
What is gravity?
100
Gravity gets smaller as this increases.
What is distance?
100
This is what you get when you convert 3 feet into inches.
What is 36 inches?
100
This is the energy form change in an electric motor.
What is electromagnetic to mechanical energy?
100
This is the energy form change in an electric generator.
What is mechanical energy to electromagnetic?
200
This force keeps the protons in the nucleus from flying apart.
What is strong nuclear force?
200
Force of gravity gets larger as this increases.
What is mass?
200
This is what you get when you convert 3 days into seconds.
What is 259,200 s?
200
This makes an electromagnetic useful.
What is it can be turned on and off?
200
This is what provides the magnetic field for a generator.
What is a permanent magnet?
300
This force makes nuclear fusion in the sun possible.
What is weak nuclear force?
300
This is why it is the law of universal gravitation.
What is because everything that has mass exerts a gravitational force?
300
This is what you get when you convert 75 mph into m/s. [1 mile = 1.61 km]
What is 33.5 m/s?
300
This causes an electromagnet to be created.
What is current?
300
This is the source of mechanical energy for hydroelectric power generation.
What is water?
400
This force makes objects feel solid.
What is electromagnetic force?
400
This personal attribute doesn’t vary no matter which planet you are on.
What is mass?
400
This is what you get when you convert 500 kPa into atm. [1 atm = 101,325 Pa]
What is 4.93 atm?
400
Increasing this physical item will increase the strength of your electromagnet.
What is the number of coils?
400
Increasing this physical item will increase the amount of current generated.
What is the number of coils?
500
This force is the strongest of the fundamental forces.
What is strong nuclear force?
500
This is different depending on which planet you are on because of the difference in gravitational force.
What is weight?
500
This is what you get when you convert $27/yd2 to $/ft2.
What is $3/ft2?
500
This is where you might find an electromagnet in your home.
What is a doorbell, a dryer, a refrigerator, a washing machine, speakers…
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