Motion
The state of one object’s distance in relation to another object. When objects get closer or further apart.
Motion
Determines if an object moves and in which direction.
Net Force
The force that one surface exerts on another surface when the surfaces come into contact with each another.
Friction
The product of an object’s mass and velocity.
Momentum
Developed laws of motion, theory of gravity and believed that comets sustained life on earth and other planets.
Sir Isaac Newton
This occurs when an object speeds up, slows down or changes direction or velocity.
Acceleration
A PUSH OR PULL ON AN OBJECT!
Force
When a body or object is forced to move along another surface but the body or object is not moving. Motion has not started.
Static Friction
A place, point or object used as a reference to help the observer determine if an object is in motion.
Reference Point
Newton’s First Law of Motion is also known as . . . . . .
Inertia
The distance that an object travels over a unit of time.
Speed
Force that pulls all objects towards each other. Example: Earth’s attraction to the sun.
Gravity
This occurs when two objects move over each other and come into contact with each other. Example: Sand on icy road.
Sliding Friction
The amount of space or length between two points or objects. Measured in meters, centimeters, millimeters, kilometers!
Distance
A body or object at rest remains at rest unless acted on by another force. A body or object in motion tends to remain in motion until acted on by another force.
Newton’s First Law of Motion
The overall rate of speed which an object travels over a distance. Calculated by the formula
Average Speed
Equal forces acting on an object in opposite directions. There is no motion, the object is not in motion.
Balanced Forces
A force that slows down a rolling object’s motion. Point where the circular surface comes into contact with another surface.
Rolling Friction
This term describes how far an object moves from its original starting point. Considered to be a vector quantity!
Displacement
This law explains the motion of an object using the mathematical formula: Force (N) = mass x acceleration
Newton’s Second Law of Motion
Speed in a given direction (speed with a direction).
Velocity
Force that produces motion or causes an object to move or change the direction of the object’s motion. Nonzero net force!
Unbalanced Force
When a body moves in a fluid or in air then there exists a resistive force which slows down the motion of the body. A freely falling skydiver feels a drag force due to air which acts in the upward direction or in a direction opposite to skydiver's motion.
Fluid Friction
The speed of an object at one instant of time.
Instantaneous Speed
For every action there is an equal and opposite reaction.
Newton’s Third Law of Motion