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Newtons first and Second law of motion
When the net force is zero, the forces on an object are balanced.
If two forces are in the same direction, they cancel each other out.
Any time the forces are unbalanced, an object will remain at rest.
According to Newton's first law of motion, an object at rest will stay at rest until a net force acts upon it.
According to Newton's first law of motion, an object moving at a constant speed in a straight path will continue to do so until a net force acts upon it.
Friction brings most moving objects to a stop.
Friction will never speed up an object.
Galileo believed that the natural state of an object was to be at rest.
If you slide a bag of groceries along a countertop, you must first overcome rolling friction.
Walking would be impossible without rolling friction.
Rolling friction always reduces the net force acting against an object's motion to zero.
Sliding friction is caused by the attraction between two surfaces.
If an objects accelerates, a push or pull must be acting on it.
If an object is not moving, the net force working on it is zero.
Friction can be reduced but never eliminated.
___ exists between any two objects that have mass.
___ occurs any time an object speeds up, slows down, or change direction.
In the formula a=Fnet divided by m, the Fnet stands for___.
When you sit in a chair, it exerts ____ against you.
Force is measured in ____.
A gravitational ________exists between you and every object in the universe.
In the formula a= Fnet divided by m, the m stands for ____.
____descibes how fast an object is moving and in what direction.
An object acted upon by a force will ________in the direction of the force.`
which of the following changes when an unbalanced force acts on an object?
which of the following is the force that slows a book sliding on a table