newtons 1st law
what is the name for a push and pull
force
If the man pushes with an equal amount of force, which object will accelerate more?
the lawnmower because it has less mass
a bus hits a bug and the bug splatters on the windshield which force is greater?
what type of friction is this: phil pushes a large bag across the room
sliding friction
define motion
The process, act or results of changing place or position
what kind of objects have inertia?
all objects with mass
A 50 kg bag of rocks has a weight on 50 N, when dropped what is the acceleration?
1m/s
when a heavy football player and a light one run into eachother, which one exerts more force ?
they are both equal
what type of friction is this: bob is pulling his wheel chair closer to the table
rolling friction
what units is force measured in?
Newtons
define what an unbalanced force it
when the forces on an object are pushing or pulling harder in one direction than in another, causing moving
what is the equation for force?
f=mxa
how is newtons 3rd law is used to launch rockets into space?
when the rocket pushes out the fire with a certain amount of force, and the rocket moves the opposite direction but with the same amount of force.
what type of friction is used: Mark drives his tow truck down the road after it's finished raining
rolling and fluid
what is a balanced force?
the forces pushing or pulling an object in one direction are the same size as the forces pushing in the opposite direction
Newtons first law is also known as the law of ...?
inertia
what happens if you push someone and they push back?
once you push them the force will push back up on you
newtons first law is associated with conservation of ...?
momentum
define friction
the resistance that one surface or object encounters when moving over another.
what is inertia?
the property of matter that keeps it at rest or motion in a straight line
what is newtons first law?
An object in motion will stay in motion unless acted upon by an unbalanced force
what is newtons second law?
That different masses accelerate at the same rate but different forces
what is newtons third law?
for every action there is an equal and opposite reaction
what are the four types on friction?
sliding friction, rolling friction, fluid friction, and static friction
what is gravity?
a force that always attracts or pulls objects toward each other without direct contact or impact