Newtons Law Physics 0.0 / 5 ? Physicsnewtons lawGCSEWJEC Created by: gmccarthy123Created on: 04-01-21 11:35 What is inertia? How hard it is to change motion of an object 1 of 12 State Newton's 1st Law A body will remain at rest, or continue to move with a constant velocity, unless acted upon by an external resultant force 2 of 12 What does resultant force mean? The overall force acting on an object 3 of 12 What is force measured in? Newtons 4 of 12 To find the resultant force, if the forces are acting in the same direction what do you do? Add them together 5 of 12 To find the resultant force, if the forces are acting in different directions what do you do? Subtract them 6 of 12 State Newton's 2nd Law Acceleration is directly proportional to resultant force 7 of 12 How do you calculate resultant force? mass x acceleration 8 of 12 What is the definition of mass? Mass is a measure of how much "matter" or material an object has. It is measured in KG 9 of 12 What is the definition of weight? Weight is a measure of how large the force of gravity is on an object. It is measured in N 10 of 12 How do you calculate weight? Weight = mass x gravitational field strength GFS is always 10N/KG 11 of 12 State Newton's 3rd Law If a body A exerts a force on body B then body B exerts an equal and opposite force on body A 12 of 12
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