Pressure (Edexcel GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is pressure?
What is pressure?
Force per unit area on a surface
What are the units for pressure?
What are the units for pressure?
Pascals (Pa)
Why are gases and liquids both considered fluids?
Why are gases and liquids both considered fluids?
Their particles can move freely
What causes fluid pressure?
What causes fluid pressure?
Collisions between particles and surface
How does increasing surface area affect pressure?
How does increasing surface area affect pressure?
Decreases pressure
Why do denser fluids exert more pressure?
Why do denser fluids exert more pressure?
More particles lead to more collisions
How does higher temperature affect fluid pressure?
How does higher temperature affect fluid pressure?
Increases pressure
What happens to atmospheric pressure at higher altitudes?
What happens to atmospheric pressure at higher altitudes?
It decreases
Why does pressure increase with depth in a fluid?
Why does pressure increase with depth in a fluid?
Weight of particles above adds pressure
In the formula , what does represent?
In the formula , what does represent?
Density of the fluid
What is atmospheric pressure at sea level?
What is atmospheric pressure at sea level?
About 101,325 Pa
How do hydraulics use pressure in liquids?
How do hydraulics use pressure in liquids?
Small force creates larger force elsewhere