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Force and Motion 8th

2nd six weeks test review

Second Law of Newton Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
Newton's First Law is also known as... Inertia
Third Law of Newton For every action there is an equal and opposite re-action.
A property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force INERTIA
What is the formula for Force? F= M x A Force= Mass times Acceleration
VELOCITY A speed with direction. For example, 20 mph North
A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia. Use Fnet= m * a with Fnet = 15 N and a = 5 m/s/s. So (15 N) = (m)*(5 m/s/s) And m = 3.0 kg
Determine the accelerations that result when a 12-N net force is applied to a 3-kg object and then to a 6-kg object. A 3-kg object experiences an acceleration of 4 m/s/s. A 6-kg object experiences an acceleration of 2 m/s/s.
Created by: mrshuff