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science Force

QuestionAnswer
Force pull or push
Net Force overall force acting on an object when all the forces are combined …if net force is 0 both objects are balanced….jump ball in BB
Inertia the resistance of an object to a change in the speed or the direction of its motion…seatbelts
Newton’s First Law objects at rest remain at rest, and objects in motion remain in motion with the same velocity unless acted upon by an unbalanced force
Newton’s Second Law the acceleration of an object increases with increased force and decreases with increased mass…..pushing an empty shopping cart vs. a full one
Force = mass X acceleration…..f=ma
Calculate Acceleration a= f/m
Calculate Mass m=f/a
Centripetal force force that keeps an object moving in a circle….ice skater spinning in circle
Newton’s Third Law every time one object exerts a force on another object, the second object exerts a force that is equal in size and opposite in directions back on the first object….rollerskater pushing another person on skates
Momentum measure of mass in motion, is the product of its mass and its velocity
Calculate Momentum mass X velocity
Collision two objects in close contact exchange enerft and momentum… car bumps into another
Conservation of Momentum – the total momentum of a system of objects does not change, as long as no outside forces are acting on the system…..bumper cars
Created by: mjtrent
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