a.
What is gravity?
A force of pull between two objects due to their mass.
What is air resistance?
a force that oppose the motion of objects in the air
What is the formula for acceleration?
a = f/m
Air resistance will affect an object more if?
the object has more surface area
Momentum depends on?
Mass and Velocity
what is mass?
Measures that amount of matter in an object
What is free fall?
a body falling when only gravity is at work on it
What is inertia?
an object resistance to change in motion
What does air resistance depend on?
Mass
True or False: Does momentum have direction.
True
What is velocity?
The speed and direction of an object
What is a vacuum?
a place where there is no matter
What is momentum?
the product of mass and the velocity of an object
What is Newtons 1st law? What is another name for it?
It is that an object at rest will stay at rest and an object in motion will stay in motion until a force acts on it. Another name for it is The Law of Inertia
Why does momentum have direction?
Because Velocity has direction too.
What is terminal velocity?
Motion of an object when gravity and air resistance equal out
What is projectile motion?
a curved path a thrown object follows
What is the formula for momentum?
p = m⋅v
What affects acceleration?
Mass
What is the unit for momentum?
kg⋅m/s and a direction
What is the formula for velocity change?
Δv = g⋅t
what is centripetal force?
a force that acts on an object in a circular path
What is the rate of gravity?
9.8 m/s2
What is Newtons 2nd law?
The acceleration of an object depends on mass and force. a = f/m
What is Newtons 3rd law?
For every action there is an opposite and equal reaction.