Vocabulary 1
What is mass?
Measure of the amount of matter in an object
What is the rate of gravity?
9.8 m/s2
What is gravity?
A force of attraction between 2 objects due to their mass.
What affects acceleration?
Mass
Newton’s first law of motion is also known as?
Law of Inertia
What is velocity?
The speed and direction of an object
What is the formula for velocity?
Δv = g * t.
What is air resistance?
A force that opposes the motion
Momentum depends on ____ and ______.
_mass and velocity_
State Newton's First Law.
An object in motion will stay in motion and an object at rest will remain at rest unless acted on by a force
What is inertia?
An object’s resistance to change motion
What is the formula for acceleration?
a= F/m
What is free fall?
When a body falls with only gravity because air resistance has balanced out
What is centripetal force?
A force that acts on an object in a circular path
State Newton’s third law of motion.
For every action there is an opposite and equal reaction
What is a vacuum?
A place where there is no air resistance
What is the formula for momentum?
p=m*v
What is terminal velocity?
Motion of an object when gravity and air resistance equal out
When does air resistance affect an object more?
If the object has more surface area
State Newton’s second law of motion.
The acceleration of an object depends on the mass and force
What is projectile motion?
A curved path a thrown object follows
What is the unit for momentum?
Kg * m/s and a direction
What does air resistance depend on and when does air resistance affect an object more?
Mass and if the object has more surface area
What is momentum?
The product of mass and velocity of an object
Why will momentum always have a direction?
Momentum includes velocity and velocity a direction