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Sc Ch. 13

Sc Vocab and Questions

QuestionAnswer
a push or pull that acts on an object force
a device that changes the direction or the amount of force needed to do work machine
the state of an object when all forces acting on it balance each other equilibrium
the speed and direction of an object's motion velocity
the rate at which the velocity of an object changes over time acceleration
the rate at which work is done power
the tendency of an object to resist any change in motion inertia
something that is done when a force moves an object work
An object resista a change in motion because of _______________. inertia
A ___________is a device that makes work easier machine
The ___________ of a moving object describes its speed and direction. velocity
When all forces acting on an object balance each other, the object is said to be in a state of _____________. equilibrium
Gravity is __________ that pulls objects toward the center of the Earth. force
_________ is done when a force moves on an object. Work
__________ is the rate at which velocity changes. Acceleration
__________ is the rate at which work is done. Power
Created by: Dorsey
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