Forces in Motion 0.0 / 5 ? PhysicsForces and MotionGCSEEdexcel Created by: Becca_BirdCreated on: 22-05-16 14:30 What is the equation that links average speed, distance and time? Distance/time=average speed. 1 of 36 What is speed measured in? Metres per second. 2 of 36 What is distance measured in? Metres. 3 of 36 What is time measured in? Seconds. 4 of 36 What is velocity? Speed in a given direction. 5 of 36 What is the equation that links acceleration with velocity change and time? Velocity change/time=acceleration 6 of 36 What is acceleration measured in? Metres per second squared. 7 of 36 What is velocity measured in? Metres per second. 8 of 36 To calculate deceleration what do you do? Calculate acceleration and then make the answer negative. 9 of 36 What is a force? A push or a pull. 10 of 36 What is force measured in? Newtons. 11 of 36 What is a vector? A movement in a specified direction. 12 of 36 Give three examples of vectors. Displacement, velocity and acceleration. 13 of 36 What is a scalar? A movement in an unspecified direction. 14 of 36 Give five examples of scalars. Distance, mass, energy, speed and work done. 15 of 36 What is weight? The amount of the force of gravity acting on an object. 16 of 36 How much gravity has the Moon got? 1/6 of the Earth's. 17 of 36 What is mass? The amount of matter an object has. 18 of 36 What is 1 kilogram equal to? 10 Newtons. 19 of 36 Is the mass the same on the Earth as it is on the Moon? Yes. 20 of 36 What is weight measured in? Newtons. 21 of 36 What is mass measured in? Kilograms. 22 of 36 What is the equation that links gravitational acceleration with weight and mass? Mass x gravitational acceleration = Weight 23 of 36 What is gravitational acceleration measured in? Metres per second squared. 24 of 36 What is gravitational acceleration? The acceleration on an object caused by force of gravity. 25 of 36 What is terminal velocity? When an object is still or at a constant speed because all the forces acting on it are equal. 26 of 36 Is there resultant force when an object reaches terminal velocity? No. 27 of 36 What happens when a moving object speeds up? The frictional forces acting upon it increase. 28 of 36 What 2 things affect stopping distance? Thinking distance and braking distance. 29 of 36 What factors affect thinking distance? Age, tiredness, drugs or alcohol and speed. 30 of 36 What factors affect braking distance? Speed, the mass of the vehicle, the condition of the tyres and brakes, weather and the road condition. 31 of 36 On a distance/time graph if the line is steep what is the speed? Fast. 32 of 36 On a distance/time graph if the line is curving up what is the speed? Accelerating. 33 of 36 On a distance/time graph if the line is curving down what is the speed? Decelerating. 34 of 36 On a distance/time graph if the line is not steep what is the speed? Slow. 35 of 36 On a distance/time graph if the line is diagonally going right what is the speed? They are returning to their destination. 36 of 36
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