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100
A push or pull that acts on an object.
What is a force?
100
The rate that the speed and direction of an object changes
What is acceleration?
100
A device that helps you do work
What is a simple machine?
100
An object's tendency to resist change
What is inertia?
200
A force acting at a distance
What is non-contact force?
200
What law states that an object in motion stays in motion unless an outside force acts upon them
Newton's First Law of Motion
200
The force you use when doing work.
What is input force?
200
Give an example of an inclined plane
What is a ramp?
300
Give the definition of a contact force
What is a force that needs two materials touching each other.
300
According to Newton's second law, what will be easier to pick up from the floor: a brick or a feather? Why?
What is a feather because the feather has less mass than the brick.
300
A machine that consists of rope around a wheel to lift objects
What is a pulley?
300
A machine where a bar is moving around a fixed point
What is a lever?
400
An incline plane _____ the input force needed, but _____ the distance.
What is decreases/increases
400
According to Newton's Second Law, who will complete a mile faster: George who is walking, or Bill who is running?
What is running?
400
Two or more inclined planes form this machine
What is a wedge?
400
A circular object attached to a bar to lowers the amount of force to turn the object.
What is a wheel and axle?
500
What makes it harder for two objects to slide past each other?
What is Friction?
500
Name three Non-contact forces
What are gravity, electricity, and magnetism?
500
Machine that can be used to pull pieces together and hold them in place.
What is a screw?
500
The two parts are required for a screw to work
What are an inclined plane and and a cylinder?