Q&A Part 3
What is considered at newtons first law?
Inertia
What is newtons first law?
An object at rest will stay at rest and an object in motion will stay in motion unless it is acted on by a external force.
What is force?
A push or pull
When there is a straight line on the graph what is the object doing?
It is slowing down at a constant speed
What are balanced forces?
Forces that are equal in size and opposite in direction
Do heavier objects have more inertia?
Yes
What is newtons second law?
The force acting on an object is equal to the mass of that object times its acceleration
What is gravity?
The force that attracts a body toward the center of the earth
If there is a steep line going down on the graph what is the object doing?
Decelerating
What are unbalanced forces?
When the force applied in one direction is greater than the force in the opposite direction.
What is friction?
Something that works against the object and can make it slow down or stop?
What is newtons third law?
Every action has an equal opposite force
What is inertia?
The property that keeps an object at rest or moving in a straight line
If there isn't a line o the graph what is the object doing?
Not moving, there is no acceleration
What is net force?
The sum of all forces acting on an object
What is force measured in?
Newtons (N)
Why were newtons laws made?
To explain why the orbits of the planets are ellipses instead of circles.
what is velocity?
The speed and direction of a moving object
If there is a line going straight up whatis the object doing?
Accelerating
Yes
How many different forces are there?
When were newtons laws made?
1686
What is acceleration?
The rate speed or direction changes
What is the formula for speed?
speed = distance รท time
Do heavier objects need more force applied for it to accelerate the same as an non heavy object?
Yes