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# Forces&Newton'sLaw

Force A push or pull applied to an object
Net Force When two or more forces act on an object at the same time
Balanced Forces The forces pushing on an object are the same
Unbalanced Forces The forces aren't the same
Describe how to combine unequal forces acting on opposite directions. The stronger force would be subtracted by the other force and the answer would go the direction that the stronger force is pushing to.
What are the SI units of force Newton(s) (N)
130N to the right and 40N to the left 90N
120N to the right and 150N to the right 270N
140N and 30N to the right and 170N to the left 0(N) (The object would not move)
150N and 120N to the right and 70N and 30N to the left 200N
Friction the force that opposes the sliding motion of two touching surface
Sliding Friction when a force slides over another force
Static friction when objects aren't moving
Fluid Friction when solid objects moves through a fluid
Rolling Friction when an object rolls across the surface
Gravity A force that pushes us together/to the ground
What is the Law of Universal Gravitation The force of gravity act between all objects in the universe that have mass
What two factors affect the gravitational attractions between objects? Mass/Distance
What is the difference between mass and weight? Weight is the gravity on mass and mass is what makes up an object
Newton's First Law of Motion An object at rest will stay at rest and a moving object will continue to move with force applied.
Newton's Second Law of Motion An object's acceleration depends on its mass and net force
Newton's Third Law of Motion With every object at motion there is an opposite and equal reaction
800kg car at a rate of 5 m/s squared 4000N
momentum mas times velocity
Created by: Jack0707