Force and Motion
Force is measured in
Newtons
What is Newtons first law?
What is the second law of newton
Law of acceleration
For every action force there is an equal and opposite reaction force.
What is mechanical energy
The total amount of energy in a system
What are the two natural forces that slow down objects?
Friction and air resistance
What does the first law of newton say?
An object in motion stays in motion, an object at rest stays at rest.
Mass
Bumper cars demonstrate which of newtons laws
third law
What is kinetic Energy?
Energy in motion
Calculate the net force of 5N and a force 4N working in the opposite direction?
1 Newton
The resistance to a change in motion
Inertia
What is a change in velocity over time, includes speeding up, slowing down, or changing directions.
Acceleration
3rd law
Kinetic energy
A push or pull that can cause an object to move or change its motion
A force
A passenger lurching forward when a car suddenly stops, is an example of what .
Inertia
What is the formula for finding acceleration?
Acceleration= force/mass
Forces always come in
pairs
What is potential energy
stored energy
What is the relationship between mass and inertia
The more mass an object has the more inertia the object has
Why is it easier to push a box of balloons than a box of bowling balls?
The box with less mass requires less force to accelerate. The box with more mass requires more force to accelerate.
You push on a door the door pushes back on you- this is an example of which law?
Third law
What is the law of conservation of energy?
Energy cannot be created or destroyed it can only be transformed or transferred.