Definitions
Net Force
Friction
Gravity
Miscellaneous
100
A push or pull acting on an object
What is a force?
100
The combination of forces acting on an object.
What is a net force?
100
This is one way to reduce friction.
What is pouring water on a surface?
100
This type of force is greater when two objects are close together or when two objects have greater masses?
What is gravity?
100
This is the agent of air resistance.
What is air?
200
When the only force acting on an object is gravity.
What is free fall?
200
The net force of balanced forces.
What is 0 N?
200
This force acts in the opposite direction of an object that it is acting on.
What is friction?
200
When the force of gravity matches air resistance and the object falls at a constant velocity.
What is terminal velocity?
200
This is the force that allows objects to float.
What is buoyancy?
300
This force does not cause a change in motion.
What is a balanced force?
300
This is the direction that an object will go in when two unbalanced forces are acting on it.
What is towards the stronger force?
300
This type of friction has a larger force.
What is sliding kinetic friction.
300
Projectile motion.
What is the curved path of an object when it is thrown?
300
Bungee jumping is an example of this.
What is tensional force?
400
The measure of matter in an object (this never changes)
What is mass?
400
This is the net force of two people playing tug of war. The person on the left pulls with a force of 20 N and the person on the right pulls with a force of 18 N.
What is 2 N left
400
This type of friction does not cause a change in motion on an object.
What is static friction?
400
Changing the shape, size (surface area), or speed can affect this force on a falling object.
What is air resistance?
400
This force caused the paper airplane to begin to move in our paper airplane lab.
What is initial push?
500
This is measured on a spring scale.
What is weight?
500
This is the net force of two forces acting on an object. One force has a magnitude of 10 N and is directed toward the north. The other has a magnitude of 5 N and is directed toward the south.
What is 5 N north?
500
This type of friction causes a change in motion.
What is kinetic friction?
500
The reason why if you drop a piano and an acorn at the same time from the same height in a vacuum, they will hit the ground at the SAME time.
What is the extra mass of a heavy object exactly balances the additional gravitational pull, and therefore both objects will have the same rate of acceleration.
500
This is the agent of gravity
What is the earth?
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