Puzzles on Pressure

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Pressure Puzzles

Pressure Puzzles

Click on the buttons to reveal hints and answers!

1. Define pressure.

Hint: It involves force and area.

Answer: Pressure is the force exerted per unit area.

2. What is the SI unit of pressure?

Hint: It is named after a scientist.

Answer: The SI unit of pressure is pascal (Pa).

3. State the formula for pressure.

Hint: It is a ratio of two quantities.

Answer: Pressure = Force / Area.

4. Calculate the pressure exerted by a 50 N force on an area of 5 m².

Hint: Use the formula: Pressure = Force / Area.

Answer: Pressure = 50 / 5 = 10 Pa.

5. What happens to pressure if the area is halved while the force remains the same?

Hint: Think about the inverse relationship.

Answer: The pressure doubles.

6. Why do sharp knives exert more pressure than blunt knives?

Hint: Focus on the area of contact.

Answer: Sharp knives have a smaller area, which increases the pressure for the same force.

7. Calculate the force if a pressure of 200 Pa is exerted over an area of 2 m².

Hint: Rearrange the formula: Force = Pressure × Area.

Answer: Force = 200 × 2 = 400 N.

8. What is the effect of depth on liquid pressure?

Hint: It increases with depth.

Answer: Liquid pressure increases with depth.

9. A 600 N force is applied over an area of 3 m². Calculate the pressure.

Hint: Use the formula: Pressure = Force / Area.

Answer: Pressure = 600 / 3 = 200 Pa.

10. Why do camels have broad feet?

Hint: It reduces pressure.

Answer: Broad feet reduce pressure by increasing the area of contact with the ground.

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