Laws
What is Newton's 3rd Law of Motion
The Law of Action-Reaction
The amount of time it takes an object to move some distance in a direction.
Velocity
If the net force acting on an object doubles, how will the object’s acceleration be affected?
The acceleration will also double.
m/s
Velocity or speed
What is the equation for acceleration?
Acceleration = (the change in velocity) / (the time it took to change the velocity)
What is Newton's 1st Law of Motion?
The Law of Inertia
The force applied by an object's mass due to gravity.
Weight
A 60-Watt light bulb is telling us about the light’s
Power
kilograms
Mass
What is the equation for Work?
Work = Force x Distance
What is Newton's 2nd Law of Motion
The Law of Acceleration
The change of an object's velocity
Acceleration
The action force is a person's foot pushing on a bicycle pedal, the reaction force is . . .
The pedal pushing back on the person’s foot.
Watts
Power
What is the equation for Power?
Power = Work / Time
An object's resistance to change its current motion
Inertia
This has the unit of Kg*m/s and describes an object with mass that is moving.
Momentum
Why doesn't carrying your backpack on your shoulders require any additional power from a physics perspective?
The force on the backpack is acting in a different direction than the movement of the backpack.
Newtons
Force or Weight
What is the equation for Force?
Force = Mass x Acceleration
When two moving objects collide their momentum may change, but the total momentum, or combined momentum will stay the same. This is a summary of the . . .
Law of Conservation of Momentum
These are used to show the direction and magnitude of an object.
Vector Arrows
How is a spaceship able to move if there is nothing in space for the exhaust to apply a force to?
The spaceship moves because its fuel has mass, and when it uses its fuel the rocket is able to push on its exhaust (burned fuel).
Joules
Work / Energy
What is the equation for Momentum?
Momentum = Mass x Velocity