Science · Forces and motion
Forces and Motion Vocabulary
Middle school physics words: inertia, velocity, acceleration, friction and more.
- 🎓 Grades 6–8
- 🧪 Science
- 📐 MS-PS2-2
- ❓ 20 questions
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force
A push or a pull on an object
motion
Change in an object's position
speed
How fast something moves
velocity
Speed in a given direction
acceleration
Rate at which velocity changes
inertia
Tendency of an object to resist change in motion
friction
Force that resists sliding between surfaces
gravity
Force that pulls masses toward each other
mass
Amount of matter in an object
weight
Pull of gravity on an object's mass
newton
Unit used to measure force
net force
Total of all forces acting on an object
balanced forces
Forces that cancel and cause no change in motion
momentum
Mass times velocity of a moving object
air resistance
Friction that air puts on moving objects
reference point
Place used to decide if something moved
distance
How far an object travels
displacement
Change in position from start to finish
magnetism
Force of attraction or repulsion from magnets
reaction force
Equal and opposite push back on an object
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