on kinetic energy? Draw a graph to illustrate. 4.7.1.10 The stopping distance of a Define: 0.5 Discussion questions: Investigate how vehicle is the sum of the changes the stopping thinking distance Why should a 2-second distance the vehicle travels distance using a ramp braking distance gap be left between during the driver’s reaction set to different heights stopping distance. vehicles on the road? time (thinking distance) and and a sand trap at the How will being tired affect State that the overall the distance it travels under bottom of the ramp. my reaction time and clip: stopping distance of a the braking force (braking Record the distance the thinking distance? vehicle is made up of distance). car travels in the sand Why does the speed of a the thinking distance trap before coming to For a given braking force the vehicle affect the thinking plus the braking rest. greater the speed of the distance even though it distance. vehicle, the greater the takes the same amount of Research how the Describe and explain stopping distance. The time to react? reaction time of a how the speed of a braking distance of a vehicle How do drugs affect person can be affected vehicle affects the can be affected by wet or icy reaction times? by various factors stopping distance, for weather and poor condition How does reaction time including: a given braking force. of the vehicle’s brakes or affect thinking distance? drugs (use tyres. How can reaction time be Estimate the typical caffeinated drinks) found? reaction of a A driver’s reaction time can distractions person. be affected by tiredness, tiredness. drugs and alcohol.
on kinetic energy? Draw a graph to illustrate. 4.7.1.10 The stopping distance of a vehicle is the sum of the distance the vehicle travels during the driver’s reaction time (thinking distance) and the distance it travels under the braking force (braking distance). For a given braking force the greater the speed of the vehicle, the greater the stopping distance. The braking distance of a vehicle can be affected by wet or icy weather and poor condition of the vehicle’s brakes or tyres. A driver’s reaction time can be affected by tiredness, drugs and alcohol. Define: thinking distance braking distance stopping distance. State that the overall stopping distance of a vehicle is made up of the thinking distance plus the braking distance. Describe and explain how the speed of a vehicle affects the stopping distance, for a given braking force. Estimate the typical reaction of a person. 0.5 Discussion questions: Why should a 2-second gap be left between vehicles on the road? How will being tired affect my reaction time and thinking distance? Why does the speed of a vehicle affect the thinking distance even though it takes the same amount of time to react? How do drugs affect reaction times? How does reaction time affect thinking distance? How can reaction time be found? Investigate how changes the stopping distance using a ramp set to different heights and a sand trap at the bottom of the ramp. Record the distance the car travels in the sand trap before coming to rest. Research how the reaction time of a person can be affected by various factors including: drugs (use caffeinated drinks) distractions tiredness. clip:
AQA-8465-SOW-MAI.DOCX