When one object applies force upon another object by touching it
What is contact force
100
The force that pulls you down to earth
What is gravity
100
A push or a pull acting on an object as a result of its interaction with another object
What is force
100
You find this by dividing distance by time
What is speed
100
Slamming the door is an example of..
What is contact force
200
An invisible force that results even when two interacting objects are not in physical contact
What is at-a-distance force
200
The force that keeps magnets stuck to the fridge
What is magnetism
200
The rate at which something or someone is able to move
What is speed
200
You need to know an objects speed and direction to determine this.
What is Velocity
200
A book falling to the ground is an example of..
What is gravity
300
When two equal forces working in opposite directions act upon an object. Hint: The object does not change position
What is balanced force
300
The force that makes a parachute float when descending down to earth
What is air-resistance
300
The speed of someone or something in a given direction
What is velocity
300
An object in motion stays in motion until acted upon by an unbalanced force.
What is Newton's First Law
300
A free falling object that picks up speed is an example of..
What is positive acceleration
400
When a force applied in one direction is stronger than a force applied in the opposite direction. Hint: The object changes position.
What is an unbalanced force
400
The force applied to the brakes of a car to make it slow down
What is friction
400
A quantity with size and direction
What is a vector
400
When you apply the brakes to a car, the car is now...
What is negatively accelerating
400
A sled going down a hill that hits a tree is an example of..
What is Newton's First Law of Motion
500
The total sum of all forces acting upon an object
What is net force
500
The force that pushes upward from the ground to keep you standing tall
What is normal force
500
The resistance of an object to change in the speed or direction of its motion
What is inertia
500
If Ray Lewis has a mass of 250 lbs and accelerates up to 6 Gs, how much force does he apply when he makes contact with the door? Hint: Use the correct formula!