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Forces change Motion
Force & mass determine acceleration
Enter Forces act Forces act in pairs
Forces transfer momentum
Miscellaneous
100
a push or pull
What is force
100
(mass)(acceleration)
What is the formula for force
100
balanced forces work on this number of objects
What is one
100
measure of mass in motion
What is momentum
100
Unbalanced forces cause this
What is motion
200
when one object pushes or pulls another by touching it
What is contact force
200
force/mass
What is formula for acceleration
200
action and reaction pairs work on this number of objects at a time
What is two
200
formula for momentum
What is (mass)(velocity)
200
resistance of an object to change direction or velocity
What is inertia
300
the force of attraction between two masses
What is gravity
300
force/acceleration
What is the formula for mass
300
during a rocket launch, the fire from the rocket engine is this part of the force pair
What is action force
300
an object of less mass may have more momentum than an object of greater mass if it also has this
What is greater velocity
300
objects remain in their same state of motion with the same velocity unless acted upon by an unbalanced force
What is Newton's 1st Law
400
the force that resists motion between two surfaces pressed together
What is friction
400
any force that keeps an object moving in a circle
What is centripetal force
400
A situation in which two objects in close contact exchange energy and momentum
What is collision
400
a situation in which two objects in close contact exchange energy and momentum
What is a collision
400
Unit of measure for force
What is a Newton
500
the overall force acting on an object when all forces are combined
What is net force
500
greater acceleration = greater force greater mass = less force direction of force = direction of acceleration
What is Newton's 2nd Law
500
for every action there is an equal and opposite reaction
What is Newton's 3rd Law
500
this principle states that the total momentum of a system of objects does not change unless an outside force acts upon that system
What is conservation of momentum
500
This is the key difference between inertia and momentum
What is velocity