Figure 4 shows a theme park ride called AquaShute - AQA - GCSE Physics - Question 2 - 2020 - Paper 1
Question 2
Figure 4 shows a theme park ride called AquaShute.
Riders of the AquaShute sit on a sled and move down a slide.
There is a layer of water between the sled and the s... show full transcript
Worked Solution & Example Answer:Figure 4 shows a theme park ride called AquaShute - AQA - GCSE Physics - Question 2 - 2020 - Paper 1
Step 1
How does the layer of water affect the friction between the sled and the slide?
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Answer
The layer of water decreases the friction between the sled and the slide. Water creates a lubricating effect, allowing the sled to glide more smoothly down the slide without much resistance.
Step 2
Calculate the gravitational potential energy of the rider at the top of the slide.
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Answer
Using the formula for gravitational potential energy:
Ep=massimesgravitationalfieldstrengthimesheight
Substituting the known values:
Ep=62.5kgimes9.8N/kgimes16.0m=9800J
Step 3
Calculate the kinetic energy of the rider at the bottom of the slide.
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Answer
Using the formula for kinetic energy:
Ek=0.5imesmassimes(speed)2
Substituting the known values:
Ek=0.5imes62.5kgimes(12m/s)2=4500J
Step 4
Give two factors that will affect how far the sled will move before it stops.
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Answer
Speed at the bottom of the slide: The greater the speed, the further the sled will travel before stopping.
Friction (between sled and ground): Higher friction will reduce the distance traveled by the sled.
