Gravity
Forces that do not actually touch the object
What are non contact forces?
This law states that an object in motion will stay in motion.
What is Newton's 1st Law?
This is described as a push or a pull on an object that changes its acceleration
What is a force?
This is when two objects crash into each other
what is a collision?
What is another word for the force of gravity on an object?
What is weight
This is calculated by displacement/time, or speed with direction
What is velocity?
Pushing off a wall while sitting on a skateboard is an example of which Newton's laws?
What is Newton's 3rd Law?
When forces are __________, there is no change in motion
what is balanced?
An ____________ collision is when the objects bounce off of each other without any loss of energy, like a bouncy ball.
what is elastic?
What three things determine the force of gravity on an object?
m1: mass of object
m2: mass of planet
r: distance between objects
This is calculated by change in velocity/ time
What is Acceleration?
A skateboard rolling off at a constant speed is an example of which law?
What is Newton's 1st Law?
When forces are ___________________, there will be a change in motion
What is unbalanced?
An __________ collision is when the objects deform and lose energy during the collision, like a car crash
what is inelastic?
Without an atmosphere, which will fall faster: a feather or a rock
Both will fall at the same acceleration
How is speed different from velocity?
speed is a magnitude or number, velocity includes direction
A larger car being slower to speed up versus a smaller car when the same force is applied is an example of which of Newton's Laws?
What is Newton's 2nd Law?
This is a force that acts in the opposite direction of motion
What is friction?
This is a starting point chosen to describe the location of an object
What is a reference point?
_______ makes planets spherical.
What is Gravity
This law states that Force equals mass times acceleration.
What is Newton's 2nd Law?
This is the force that counteracts the force of gravity
What is the normal force?
This is a diagram used to model the different forces applied to an object
what is a free body diagram?