1) What is the resultant force? a) 85N b) 15N c) 185N d) -15N 2) A cat climbs 20m in 35s, what is it's speed? a) 0.57m b) 1.75m/s c) 0.57m/s d) 1.75m 3) A dog walks 200m at a pace of 1.5m/s, how long does this take? a) 133 seconds b) 0.75seconds c) 1 minute 33 seconds d) 300 seconds 4) Francis jumps from a bridge on the end of an elastic bungee rope. He accelerates and then the elastic rope slows him down. He stops before he reaches the water. The sketch graphs show how speed can change with time. Which graph best shows how Francis’s speed changes during his fall? a) A b) B c) C d) D 5) A rabbit accelerates steadily from 2m/s to 6m/s in 5.6 s. Find it's acceleration. a) 1.4m/s2 b) 0.71m/s2 c) 1.07m/s2 d) 0.93m/s2 6) The car’s top speed is 100 miles per hour. The saleswoman says that the stopping distance from this speed is about 180 m. Stopping distance is... a) the driver’s reaction time plus the time for which he uses the brakes b) the driver’s reaction time minus the time for which he uses the brakes c) the distance the car moves while the driver is reacting plus the braking distance d) the distance the car moves while the driver is reacting minus the braking distance 7) Jo plans to investigate paper helicopters. A paper helicopter spins as it falls. Jo holds a paper helicopter with the top of the blades touching the ceiling. Which of these is correct as she lets go of the helicopter? a) It starts to fall at terminal velocity because the forces are balanced. b) It starts to fall at terminal velocity because the forces are unbalanced. c) It accelerates because the forces are balanced. d) It accelerates because the forces are unbalanced. 8) The Earth is pulling the helicopter down towards it with a force of 0.07 N. The helicopter is a) pushing the Earth downwards with a force too small to measure b) pulling the Earth upwards with a force too small to measure c) pulling the Earth upwards with a force less than 0.07 N d) pulling the Earth upwards with a force equal to 0.07 N 9) The speed-time graph for the parachute’s journey is shown below. In which section is the parachute falling at a constant speed? a) A b) B c) C d) D 10) Jo looks at ways to reduce the stopping distance for a car. Which of these could help to reduce stopping distance? a) reducing the braking force b) increasing the car’s speed c) increasing friction between the tyres and the road d) increasing the driver’s reaction time 11) Andy and Hannah found that the roller coaster car took a time of 2 s to travel 40 m. The average speed of the roller coaster was a) 0.05 m/s b) 20m/s c) 42m/s d) 80m/s 12) Andy and Hannah produced a velocity-time graph for the start of the roller coaster ride. What is the acceleration of the roller coaster car during the first two seconds? a) 0.4 m/s2 b) 2.5 m/s2 c) 5 m/s2 d) 10 m/s2 13) Which sections of the graph show times when the resultant force on the roller coaster car is zero? a) all four sections b) P and R c) Q and S d) none of them 14) On a speed time graph the gradient is the... a) distance travelled b) time taken c) acceleration d) momentum 15) What's the difference between speed and velocity? a) They are the same b) Speed has size and direction, whereas velocity only has size. c) Velocity has size and direction whereas speed only has size. d) Velocity has size and direction whereas speed only has direction 16) A car slows down and starts moving backwards. It's velocity changes from 20m/s to -5m/s in 10 seconds. What is the acceleration of the car? a) 2.5m/s2 b) -2.5m/s2 c) -1.5m/s2 d) 1.5m/s2 17) Which of these affects braking and thinking distance? a) Weather conditions b) Speed c) Concentration d) Tyre condition 18) What is the weight of a table with a mass of 25kg? a) 25kg b) 25N c) 250N d) 250kg 19) An object has a weight of 12N. What is it's mass? a) 12kg b) 120kg c) 0.12kg d) 1.2kg 20) A football of mass 400g is kicked with a force of 700N, what is it's accleration? a) 0.57m/s2 b) 1.75m/s2 c) 1750m/s2 d) 57m/s2

P2 Part 1a test RSW

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