When object falling reaches terminal velocity what two things are balanced?
Gravity and air resistance
100
What kind of friction is air resistance?
Fluid
200
Two objects falling, 1 lb and 8 lb do not speed up at the same rate, which one's faster? Why?
Small one is faster because smaller mass.
200
Who's the scientist who created the laws of motion?
Isaac Newton
200
The tendency of an object not to change motion
Inertia
200
What law states that: An object at rest remains at rest and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.
1st Law
200
The formula for force
Mass x acceleration
300
What law states that whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.
The 3rd law
300
Projectile motion has 2 types of movement, what are these?
Forward and downward (due to gravity)
300
What law states that: The acceleration of an object depends on the mass of the object and the amount of force applied.
The 2nd Law
300
Property depends on mass and velocity of moving objects
Momentum
300
If object is accelerating towards Earth surface and nothing is acting on it except gravity
Free fall
400
If object has momentum and hits another object what happens to original objects momentum?
It transfers
400
Aristotle said what about objects of different masses/sizes falling?
He said that heavier objects fall at faster rates and he was wrong.