simple machines
Motion
Forces
Factors affecting motion
Random
100
This is the purpose of all simple machines
What is make work easier
100
This is the measure of distance over time
What is speed
100
This is when forces are equal
What is balanced forces
100
This is the force that acts on a rolling object to stop its motion
What is friction
100
Unbalanced forces will cause an object to _________
What is move
200
This simple machine can lift heavy objects straight up
What is a pulley
200
This is the location of an object
What is position
200
This is when forces are not equal.
What are unbalanced forces
200
This is the scientific term given to a soccer ball that will not start moving on its own, until it is kicked
What is inertia
200
Stairs are an example of what simple machine?
What is inclined plane
300
This simple machine makes it easier for humans to lift objects
What is a lever
300
If you hit a tennis ball and a basketball with the same force, which will travel faster and further?
What is the tennis ball.
300
This is a push or pull on an object
what is a force
300
A moving train will be harder to stop than a moving toy car. This is because it has more___________
What is momentum
300
Two inclined planes back to back make this simple machine.
What is a wedge.
400
This simple machine will help you load furniture into a truck
What is an inclined plane
400
If a ball is rolling and each second the ball is covering more distance, what is happening to the ball?
What is speeding up
400
If a dog owner and his dog are pulling on a leash and neither is moving, what type of force is being applied?
What is balanced force
400
By adding salt to the roads after a snow, what have you done to the amount of friction?
What is decrease (made less)
400
What force causes a parachute to slow down as it travels through the air.
What is air resistance
500
The point on which a lever moves is called this
What is a fulcrum
500
What is it called when the tendency of an object is to stay in motion or stay at rest unless acted upon by some force?
What is inertia
500
If a ball has two forces acting on it. One force is pushing left. A larger force is pushing right. In which direction will the ball move?
What is right
500
Are you more likely to slip on a surface with increased friction or decreased friction?
What is decreased friction
500
What simple machine is an inclined plane wrapped around a pole.
What is a screw.
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