1) Nicole is an olympic cyclist. She is travelling at 12 m/s. How far will she travel in 3 s at this speed? a) 0.25m b) 4 m c) 15 m d) 36 m 2) Nicole's stopping distance will become shorter if? a) it starts to rain b) she starts to go up hill c) her reaction time increases d) she is travelling faster 3) John rides a different bike. The diagram shows the forces acting. The resultant force is? a) 150 N to the left b) 150 N to the right c) 250 N to thye left d) 250 N to the right 4) John and his bike have a mass of 60 kg. He accelerates at 3 m/s2. The accelerating force is a) 0.05 N b) 20 N c) 60 N d) 180N 5) A crane lifts a box. What type of energy has the box gained by the change in position? a) chemical b) kinetic c) gravitational kinetic d) thermal 6) The box weighs 300 N. The crane lifts the box through a height of 20 m. How much work does the crane do on the box? a) 15 J b) 600 J c) 6000 J d) 90 000 J 7) The work done in lifting the box is equal to? a) the energy created b) the energy transferred c) the power created d) the power destroyed 8) The crane does 10 000 J of work in 20 s. The power is a) 0.002 W b) 0.5 W c) 500 W d) 200 000 W 9) Friction acts on the ball. You want the ball to finally stop at Q. Which of these must you do before you let the ball go? a) lower O b) lower P c) raise Q d) lower R 10) To answer question about releasing the ball, you carried out a) a thought experiment b) a fair test c) a controlled experiment d) a precise measurement 11) Between 2006 and 2007, the percentage of car occupants wearing a seat belt has a) decreased by 2% b) increased by 2% c) increased by 93% d) increased by 95% 12) Which of these would increase the stopping distance of a car? a) decrease the grip between the tyres and the road b) decrease the speed of the car c) decrease the driver’s reaction time 13) Who is your favorite teacher? a) Mrs Achilli b) Ms Roy c) Both 14) What is the most addictive? a) Cigarettes b) Blackberry phone c) Facebook d) Crazybirds 15) A car driver brakes suddenly. She exerts a force of 500 N on her seat belt. What is the force exerted on the driver by the seat belt? a) zero b) 500 N c) less than 500 N d) more than 500 N 16) The log has most gravitational potential energy at a) w b) x c) y d) z 17) Which row is correct for the log as it enters the water splash at Y The frictional forces on the log? a) Increase b) Decrease 18) Work is done to raise the log to W. All of the energy gained is eventually transferred to other forms. This is an example of a) power efficiency b) energy conservation c) renewable energy d) energy accumulation 19) The graph shows how the speed of the log changes at another part of the ride. At which point is the log travelling at a steady speed? a) A b) B c) C d) D 20) A skydiver jumps out of an aeroplane. Which graph shows the size of the downward force on the skydiver as she falls? a) A b) B c) C d) D

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