Force and Motion
Motion and Force
Force and Motion
100
push or pull
What is force?
100
An outside force acts on an object at rest or an object in motion
What is Newton's First Law?
100
the size of the change in velocity depends on the force and the mass of the object
What is Newton's Second Law?
200
force that pulls everthing towards earth
What is gravity?
200
objects are moving
What is a force acting on them?
200
the more distance between two objects, the weaker the force
What is gravitational force?
300

Forces that do not change motion of an object 

What is a balanced force?

300
tendency of an object to resista change in motion
What is inertia
300
the speed of an obejct with a specific direction
What is velocity?
400

Forces that do CHANGE the motion of an object

What is an unbalanced force?

400
a force acting on an object causes a change in velocity
What is unbalanced?
400
equal in size but opposite in direction
What is balanced force?
500

If an object is changing speeds, then the forces acting on it must be unbalanced. 

True or False 

What is True?

500
the part of the lever on which the effort force is formed
What is effort arm?
500
a simple machine having an arm that moves about a fixed point
What is a lever?
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