Topic 4: Forces and Motion Vocabulary
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13 Terms
Motion
When an object’s position changes when compared to a different object.
Reference point
A place or object used for comparison to determine whether something is in motion.
Force
A push or pull
Newton
A unit for strength of a force named after Sir Isaac Newton
Friction
A contact force that two surfaces exert on each other when they rub against each other.
Gravity
A force that pulls objects toward each other as a result of their masses
Net force
The combination of all the forces acting upon an object.
Speed
The distance a object moves per unit of time
Slope
The angle of a line on a graph
Velocity
The speed at which an object travels in a given direction
Acceleration
The rate at which velocity changes
Inertia
Resistance to change in motion
Weight
A measure of the force of gravity on an object.
Note 
Flashcards (22)