Newton's second laws
The force of gravity is equal to what
Weight
a push or pull that one body exerts on another
force
For every action there is an equal and opposite reaction force
Newton's third law of motion
what force causes an object to try and not change
Inertia
what force opposes the motion of objects
friction
What is the force called that attracts any two objects
Gravity
forces that are not equal
net force
An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force
Newton's First Law
when the size of an object increase what also increases with it
The object's Inertia
what are the three types of frictions
Rolling, sliding, static
Terminal Velocity
What happens if the net force acting on an object is zero
The object will not change
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional its mass
Newton's 2 law
An object that is still will only change if acted upon by what
net force
BONUS Points: Name the Short name for all three of Newton's laws
(i.e. The first law is the law of _______)
1st - Inertia
2nd - Force and Acceleration
3rd - Action-Reaction
The speed at which something would pulled down in free fall close to earth's surface
9.8 m/s 2
What happens if the net force is any nonzero number
The object will accelerate negatively or positively
Uh oh...
You automatically get 400pts.
An object with a lot of inertia is likely to do what
Resist change
Which type of friction acts on a non moving object
static friction
increases as mass increases and distance decreases
Gravity
How do you calculate Net Force
You find the sum of all forces acting on the object
How many laws did Newton write
three
A car rolling down a hill will keep rolling unless acted upon by a net force what is this an example of
Inertia
Explain standing on a skateboard and pushing against a wall is a good example of Newton's 3rd Law
Applying a force on the wall applies an equal but opposite force on you. Since the wall is more massive, and you have less friction, you move away from the wall.