Forces and Newrons LawsQuiz Reveiw
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27 Terms
Static Friction
The force that acts on objects that are not moving
Sliding Friction
The force that opposes the direction of motion of an object as it slides over a surface
Rolling Friction
The force that acts on rolling objects
Fluid Friction
The force that opposes the motion of an object through fluid
Newtons 1st Law of Motion
An object at rest remains at rest and an object at motion remains motion less acted upon by an outside forced
Newtons Second Law of Motion
Unbalanced force causes acceleration
Newtons 3rd Law of Motion
For every action, there is an equal and opposite reaction
A ball placed on a desk for remains their until a force causes it to move
What is an example of newtons first law of motion?
More forces needed to lift a heavy desk than a feather.
What is an example of newton second law of motion?
A ball thrown against a wall comes back to you with equal, but opposite force
What is an example of newtons third law of motion?
F=MA
What is the formula to find force?
M=F/A
What is the formula to define mass?
A=F/M
What is the formula to find acceleration?
A force exerted on an object when two objects are touching each other
What is a contact force?
A force exerted on an object that does not make contact with it
What is a non-contact force?
An objects tendency to remain at rest or keep moving.
What is inertia?
Yes
Is this statement true- objects with a greater mass have a greater inertia
No
is this statement true-object with a greater mass have a smaller inertia
an attractive force that acts between two objects, pulling them together
What is gravity
Objects to accelerate downwards, where as resistance acts in the opposite direction to the motion
What does gravity cause?
9.8m/s/s
What is the gravitational acceleration of falling objects?
an increase in air resistance
What does an increase in surface area cause.
a force that acts on the surface where objects are in contact
What is friction?
The force of attraction or propulsion between charged particles
What is electric force?
The force of attraction or repulsion between magnetic poles
What is magnetic force?
A lightning strike
What is an example of electric force?
Two magnets touching
What is an example of a magnetic force?