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Parachutes & Drag

Parachutes & Drag. LO: Investigate how area can affect air resistance. How do parachutes work?. Your investigation. Design and make a parachute to provide maximum AIR RESISTANCE for your sky-diver (a lump of plasticine ) Time how long it takes to fall 2m Repeat the test 3 times

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Parachutes & Drag

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  1. Parachutes & Drag LO: Investigate how area can affect air resistance

  2. How do parachutes work?

  3. Your investigation • Design and make a parachute to provide maximum AIR RESISTANCE for your sky-diver (a lump of plasticine) • Time how long it takes to fall 2m • Repeat the test 3 times • Test three different sizes of parachute • Calculate the average time and speed for each size parachute

  4. Fill out your results table To work out the average, add all the times for each activity together and divide by the number of times you repeated the activity (three) Use your average time for each parachute to work out the speed. Remember that: Speed = Distance ÷ Time

  5. Questions • Does the change in size of the parachute make any difference. Why? • How do the upwards and downwards forces on your parachute change as it descends? • Would you do a parachute jump?!

  6. Homework - Forces Diagrams • Draw forces diagrams for a parachutist at three different stages of descent: • Start • Middle • End • What two forces are acting on the parachutist? • Make sure you label your forces and that the size of the arrows gives a clear indication of the size of the force

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