24 terms

# Force, Motion, and Energy: Force, Speed, Velocity, and Acceleration

Force, Motion and Energy Terms

#### Terms in this set (...)

Force
A push or pull exerted on an object.
Newton
Unit for Force.
Net Force
The combination of all the forces acting on an object.
Unbalanced Forces
Two or more forces that are not equal and opposite of one another Causes motion to change.
Balanced Forces
Forces acting on an object that combine and form a net force of zero. Allows motion to remain constant.
Friction
A force that opposes motion between two surfaces that are in contact.
Mass
A measure of the amount of matter in an object; measured in grams.
Inertia
The tendency of an object to resist a change in motion.
Direction
The path that an object is moving or facing.
Distance
How far an object moves.
Speed
The ratio of distance traveled and the time it took to travel.
Potential Energy
Stored energy; energy of position.
Kinetic Energy
Energy of motion.
Acceleration
Change in speed or direction; change in velocity. Examples: speeding up, slowing down, turning.
Velocity
The speed and direction of a moving object.
Magnitude
Greatness of size, strength, amount, or importance.
Scale
An instrument for measuring weight.
Momentum
A property of a moving body that determines the length of time required to bring it to rest when under the action of a constant force.
Gravity
A force of attraction between objects that is due to their masses.
Rate
A ratio that compares two quantities measured in different units.
Deceleration
A decrease in speed.
Constant Motion
The velocity of an object remains the same over time.
Changing Motion
The velocity of an object changes during a timeframe.
No Motion
An object remains stationary.

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