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M, F, SM Quiz

Motion, Forces, and SImple Machines Quiz

QuestionAnswer
Friction acts in a direction _____________ to the direction of an object’s motion. opposite
How much force is needed to accelerate a 20-kg ball to 300 meters per second squared? 6,000 N
What force can cause an object's motion to change? Unbalanced Force
What force will not cause an object's motion to change? Balanced Force
The amount of matter in an object is called? Mass
What is inertia? Tendency to resist a change in motion.
What is a force? A push or a pull
What is friction? The general term for the force that one surface exerts on another when they rub against each other.
What is rolling friction? The kind of friction that results when a wheel turns on a surface.
What is sliding friction? The kind of friction that results when you rub sandpaper against wood.
What is gravity? The force that accelerates objects towards Earth.
What is air resistance? The kind of friction that slows down a falling object.
What is Newton's First Law? Objects at rest stay at rest; objects in motion stay in motion; unless acted upon by another force.
What is Newton's Second Law? Force = mass x acceleration
What is Newton's Third Law? For every action there is an equal and opposite reaction.
Created by: traber
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