1) Which of these is an important piece of equipment when investigating force and acceleration? a) balance b) measuring cylinder c) weighing boat d) light gate and data logger e) newtonmeter f) Bunsen burner 2) Stopping distance = ___________ + braking distance a) reaction time b) thinking time c) time it takes to think d) thinking distance e) stopping time f) stopping distance 3) _____________ is the distance the car takes to stop once the brakes are applied. a) Stopping distance b) Thinking distance c) Braking distance d) Stopping time e) Thinking time f) Braking time 4) Estimate the stopping distance of a car going at 30 miles per hour a) 5 metres b) 10 metres  c) 25 metres d) 50 metres e) 75 metres f) 100 metres 5) Which of these things affect a cars braking distance? a) drinking alcohol b) being tired c) being distracted by talking d) worn tyres e) taking drugs f) using a mobile phone 6) Which of these things does not affect braking distance? a) Your reaction time b) water on the road c) icy weather d) worn brakes e) bald tyres f) oil on the road 7) When a car brakes, the kinetic energy of the car is transferred to the ____________ energy store of the brakes a) Kinetic b) Chemical c) Thermal d) Light e) Sound f) Force 8) Estimate a typical person's reaction time a) 0.05 seconds b) 0.5 seconds c) 1.5 seconds d) 0.05 metres e) 0.5 metres f) 1.5 metres 9) How could we easily find a person's reaction time? a) Use a computer b) Look it up in a data book c) Do the ruler drop test d) Tap them on the knee e) Throw an object at them f) Ask them a scientific question 10) How could we improve the accuracy of our results? a) repeat it and calculate an average b) use a longer ruler c) use a shorter ruler d) use a different person e) use a ruler that has mm on it

P2 Topic 5 Car Safety

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