Pressure & Pressure Differences in Fluids (AQA GCSE Physics): Quizzes

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Pressure
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What does pressure measure?

How much force is spread over an area

At what angle does fluid pressure act on surfaces?

Right angles (perpendicular)

What is the correct formula for pressure?

P=FAP = \frac{F}{A}

What unit is pressure measured in?

Pascals (Pa)

What does 1 Pa1 \text{ Pa} equal?

1 N/m21 \text{ N/m}^2

What is atmospheric pressure at Earth's surface approximately?

100,000 Pa

What happens to atmospheric pressure as you go higher in altitude?

It decreases

What happens to pressure if you push harder on the same area?

Pressure increases

What happens to pressure if you use the same force on a smaller area?

Pressure increases

Why do stiletto heels sink into soft ground but flat shoes don't?

Stilettos have smaller area, higher pressure

A force of 50 N50 \text{ N} acts on 0.5 m20.5 \text{ m}^2. What is the pressure?

100 Pa100 \text{ Pa}

How must force be measured when calculating pressure?

Perpendicular to the surface

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