Why do ears hurt when diving deep?

Water pressure increases with depth

Why do snowshoes stop you sinking?

They spread weight over a larger area

Why do pressure cookers cook faster?

Higher pressure raises water's boiling point

Pressure Quiz: Can You Get 8 Out of 10?

This pressure quiz covers what pressure is, the pascal, air pressure and barometers, water pressure in the deep sea, diving, altitude, pressure cookers and hydraulics. Can you get 8 out of 10 on the force that presses on everything around you?

Start Pressure Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Definition
What is pressure?
Units
What is the SI unit of pressure?
Barometer
Who invented the mercury barometer in 1643?
Sea level
About how much is normal air pressure at sea level?
Altitude
What happens to air pressure as you climb a mountain?
Water
Why do ears hurt when diving deep?
Snow
Why do snowshoes stop you sinking?
Cooking
Why do pressure cookers cook faster?
Hydraulics
Which principle lets car lifts raise heavy cars?
Weather
What does falling air pressure usually signal?

Explanations: answer key for all 10 questions

Q1: What is pressure?
Answer: Force per unit area
Spreading force over a larger area lowers pressure.
Q2: What is the SI unit of pressure?
Answer: Pascal
It is named after Blaise Pascal.
Q3: Who invented the mercury barometer in 1643?
Answer: Evangelista Torricelli
It measures air pressure.
Q4: About how much is normal air pressure at sea level?
Answer: About 101 kilopascals
It is also called one atmosphere.
Q5: What happens to air pressure as you climb a mountain?
Answer: It decreases
There is less air above you.
Q6: Why do ears hurt when diving deep?
Answer: Water pressure increases with depth
Pressure rises about one atmosphere every 10 meters.
Q7: Why do snowshoes stop you sinking?
Answer: They spread weight over a larger area
Lower pressure on the snow.
Q8: Why do pressure cookers cook faster?
Answer: Higher pressure raises water's boiling point
Water can reach about 120 °C.
Q9: Which principle lets car lifts raise heavy cars?
Answer: Pascal's principle
Pressure spreads equally in a fluid.
Q10: What does falling air pressure usually signal?
Answer: Stormy weather
Low-pressure systems bring clouds and rain.

Pressure Quiz – The Force on Every Surface

Pressure is force spread over an area. A sharp knife cuts easily because its force is concentrated on a tiny edge, while snowshoes spread weight to keep you on top of snow. Pressure is measured in pascals.

We live at the bottom of an ocean of air that presses on us with about 101 kilopascals at sea level. Air pressure drops with altitude, which is why climbers need oxygen and water boils at lower temperatures on mountains. Barometers measure these changes to help forecast weather.

Water pressure increases quickly with depth, so submarines and deep-sea creatures must cope with crushing forces. Engineers use pressure in hydraulic lifts, brakes, pressure cookers and tires, making it a hidden helper in daily life.

What This Quiz Teaches

This quiz is for students learning about pressure.

What pressure is
Who invented the barometer
How altitude changes pressure
Why diving hurts ears
How hydraulics work

Did You Know?

The Mariana Trench has over 1,000 times surface pressure.
Tire pressure affects fuel use.
Airplane cabins are pressurized.
Suction cups use air pressure.
Weather maps show isobars.