Newton's second law
Gravity x mass equals
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
To resist a change in motion
Inertia
Force that opposes the motion of objects that touch as they pass by each other
What is friction
Mass x acceleration is the formula for....
Force
forces that are equal and opposite
balanced
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
Hand pushes on wall, so at the same time ______
wall pushes on hand
For every action there is an ____
What is Equal and Opposite?
An object in free fall has an acceleration of
9.8 m/s2
Force measured in
What are Newtons
The acceleration of an object is directly proportional to the net force acting on it
Newton's 2 law
Balanced forces mean motion will _____
Stay the same
Acts in the direction opposite to the motion of an object moving through air
Air resistance
The force called that attracts any two objects
What is Gravity
The sum of all forces acting on an object equals the
net force
Swimming forwards happens because water is pushed backwards
Newton's third law of motion
An object with a lot of inertia is likely to do what
continue its motion
Type of friction acts on a non moving object due to microwelds
What is static friction
The greater the force results in the _______________ the acceleration
greater
Determines the strength of gravity between two masses
What is distance
Which has more intertia? A school bus or a sports car? Why?
School bus
A skydiver who jumps from a plane will fall through the air with gravity as the only force acting on them. This is called:
free fall
If you apply 350 N of force to a wall, how much force does the wall apply back?
What is 350 N