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Force & Motion Vocab

8th Grade

QuestionAnswer
MOTION The change in an object's position over time
POSITION The location of an object compared to something else
FORCE A push or pull of an object
NEWTON The unit used to measure force
NET FORCE The overall force on an object after combining all forces.
BALANCED FORCES Forces that are equal in size but opposite in direction; motion does not change.
UNBALANCED FORCES Forces that are not equal; they cause a change in motion.
ACCELERATION A change in speed or direction of an object’s motion.
FRICTION A force that slows down motion when two surfaces rub together.
GRAVITY A force that pulls objects toward the center of the Earth.
INERTIA The tendency of an object to stay at rest or keep moving unless acted on by a force.
NEWTON'S FIRST LAW An object at rest stays at rest, and an object in motion stays in motion unless acted on by a force. (Law of Inertia)
NEWTON'S SECOND LAW The acceleration of an object depends on its mass and the force applied. Formula: Force = mass × acceleration
NEWTON'S THIRD LAW For every action, there is an equal and opposite reaction.
MASS The amount of matter in an object; heavier objects have more mass.
SPEED How fast an object is moving (distance divided by time).
VELOCITY Speed in a specific direction.
MOMENTUM The “motion strength” of a moving object; depends on mass and velocity.
Created by: Springdale
 

 



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