Topic 1.1 - Motion 0.0 / 5 ? PhysicsForces and MotionMotionIGCSEAQA Created by: Alice CullenCreated on: 20-12-16 11:43 What is a scalar? A scalar is a quantity that has a magnitude only. 1 of 9 What is a vector? A vector is a quantity with a magnitude and a sense of direction. 2 of 9 What can be represented by a distance-time graph? How far an object, moving in a straight line, is from a certain point 3 of 9 How can the speed of an object be determined from a distance-time graph? To find the speed of an object from a distance-time graph, the gradient of the line needs to be determined. 4 of 9 What is the velocity of an object? Velocity is the speed of an object in a given direction 5 of 9 What is the equation for velocity? Velocity = Displacement ÷ Time Taken 6 of 9 What is the equation for acceleration? Acceleration = Change in Velocity ÷ Time Taken 7 of 9 How can the acceleration of an object be calculated? The acceleration of an object can be calculated by determining the gradient of the line on a velocity-time graph 8 of 9 How can distance travelled by an object be determined? The distance travelled by an object can be determined by the area underneath the line of a velocity-time graph 9 of 9

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