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Force
Motion
Gravity
Newton's Laws
Definitions
100
What puts things in motion?
Force
100
"Harder to move" is a property of matter called?
inertia
100
What's the Law of Gravity?
stats that any two masses exert an attractive force on each other
100
What are Newton's Laws about?
motion
100
how far an object has moved
distance
200
Forces are like ______ or ______.
push or pull
200
In zero gravity, do the Laws of Motion still apply?
Yes, because there is still inertia.
200
What is the gravitational force exerted on an object?
weight
200
What does Newton's First Law state?
an object in motion stays in motion unless acted on by an outside force.
200
a change in an object's velocity's rate
acceleration
300
What is the formula for force?
F=mass x acceleration
300
What is the definition for motion?
when an object changes its position relative to a reference point.
300
The amount of air resistance depends on an object's ______,_____, and _______.
shape, size, and speed.
300
For every action there is an ______ and _____ reaction.
equal and opposite
300
distance an object travels per unit of time
speed
400
What is force that opposes motion between two surfaces that are touching each other?
Friction
400
What's the formula for speed?
S=D/T
400
What is the attractive force between two objects that depends on the masses of the objects and distance between them?
gravity
400
Newton's First Law is also known as the law of _____?
its mass and acceleration.
400
speed and direction of an object's motion
velocity
500
When something is sitting still, it stays sitting still unless acted on by an ________ _______.
outside force.
500
What opposes the motion of objects that move through the air?
Air resistance
500
Why would your weight be different on the moon than it is on earth?
The gravitational force is different on the moon than it is on earth, so the gravitation force exerted on your body would make you weigh lighter.
500
Isaac Newton's most famous and important work introduced his three laws of motion. What was this work called?
"Principa Mathmatica"
500
the distance and direction of object's change of position from starting point
displacement