P2-1 0.0 / 5 ? PhysicsMotionGCSEAQA Created by: maleehah129Created on: 07-01-17 12:29 What is the SI unit of distance? Meters 1 of 16 What is the speed of a runner who covers 400m in 50s? 400 divided by 5=80 2 of 16 What is the difference between speed and velocity? Velocity is speed but in a given direction 3 of 16 What is the SI unit of acceleration? Meters per second squared 4 of 16 What does a horizontal line on a velocity-time graph represent? Zero 5 of 16 What would the velocity-time graph for a steadily decelerating object look like? It would have a negative gradient 6 of 16 What does an upwardly curving line represent on a distance-time graph? increasing velocity 7 of 16 What does an upwardly curving line represent on a velocity-time graph? increasing acceleration 8 of 16 What is the average speed, in m/s, of a car that completes a distance of 1.2km in 1 minute? 20m/s 9 of 16 What does the distance-time graph for a stationary object look like? It would be horizontal 10 of 16 What quantity has the units m/s^2? Acceleration 11 of 16 What does a negative value for acceleration mean? That something is decelrating 12 of 16 What happens to the gradient of the line on a distance-time graph if the speed increases? gradient increases 13 of 16 How can an object travelling at a steady speed be accelerating? by changing direction 14 of 16 A car accelerates from rest to a speed of 40 m/s in 10s. what is its acceleration? 40 divided by 10=4 15 of 16 What part of a velocity-time graph represents the distance travelled? The area under the line 16 of 16
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