Motion and Speed Flashcards
average speed
a rate of motion determined by dividing the total distance traveled by the total time
balanced forces
forces that are equal in size and opposite in direction
constant speed
speed that does not change
force
a push or pull one body exerts on another
friction
the force that opposes motion between two surfaces that are touching each other
Gravity
force exerted by every object in the universe on every other object
inertia
the tendency of an object to resist any change in its motion
instantaneous speed
the rate of motion at a given instant in time
net force
the sum of the forces of an object when unbalanced forces are applied to it
speed
the rate of motion, or the rate at which a body switches position
velocity
the speed and direction of a moving body, such as a storm or a basketball thrown across a court
weight
the measure of the force of gravity on an object
acceleration
the rate of change in velocity (a change in direction or a change in speed)
