Forces 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: Sam EvansCreated on: 04-01-15 18:00 If you push on a wall with a horizontal force of 15N to the right, what force will the wall exert on you? 15N to the left 1 of 12 What happens to an object moving at a steady speed if the resaltant force on it is zero? The object continues to move at a steady speed in the same direction 2 of 12 When will a resultant force cause a deceleration? When the force is in the opposite direction to the motion 3 of 12 What happens to the acceleration of an object as the resultant force on it increases? The acceleration increases 4 of 12 What is the resultant force on a car of mass 1500kg if its acceleration is 0.5 m/s squared? 750 N 5 of 12 What is the acceleration of a car of mass 2000kg if the resultant force acting in its direction of motion is 800N? 0.4 m/s squared 6 of 12 What is the effect of the speed of a vehicle on its stopping distance? the faster the speed the greater the stopping distance 7 of 12 What is terminal velocity? the final steady speed of an object falling freely through a fluid 8 of 12 What is the weight of a person of mass 70kg? 700N 9 of 12 What is an elastic object? one that goes back to its original shape and size when the force applied to it is removed 10 of 12 What does Hooke's law state? the extension is directly proportional to the force applied, provided the limit of proportionality is not exceeded 11 of 12 When a force of 10N is applied to a spring it extends by 2.0cm. What is the spring constant of the spring? 500 N/m 12 of 12
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