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Complete the sentence - AQA - GCSE Physics - Question 9 - 2023 - Paper 1
Question 9
Complete the sentence. Air particles in the tyre move quickly in ____________________ directions. When the tyre is at the correct pressure, pumping more air into t... show full transcript
Worked Solution & Example Answer:Complete the sentence - AQA - GCSE Physics - Question 9 - 2023 - Paper 1
Step 1
Step 2
Explain why the pressure increases as more air is pumped into the tyre.
Answer
When more air is pumped into the tyre, there are more air particles in the tyre. This leads to a greater number of collisions with the walls of the tyre per second. As the number of collisions increases, so does the force exerted on the tyre walls, which results in an increase in pressure.
Step 3
Explain why.
Answer
As temperature increases, the air particles in the tyre acquire greater kinetic energy, causing them to move faster on average. This results in more collisions with the tyre walls per second. Each of these collisions exerts a force on the walls. Consequently, the greater speed of particles, along with the increased rate of collisions allows for a greater rate of change of momentum, which leads to an increase in tyre pressure.