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Course: Alhussan Physics — Stage 8
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Alhussan Physics — Stage 8

Chapter 6: Forces, Motion and Pressure

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Chapter 7: Light

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Chapter 8: Magnetism and Electromagnets

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Chapter 9: Energy Resources

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Chapter 10: The Earth in Space (Galaxies and Asteroids)

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Quiz

6.15 Using pressure — Quiz

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  • Questions count: 10
  • Passing grade: B+
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1.
Why are knives sharpened?
A smaller area gives a larger pressure
To make them heavier
To make them blunt
To reduce pressure
2.
Why do rucksacks have wide straps?
They look better
They are heavier
They spread the force, reducing pressure
They increase pressure
3.
Which term matches this definition? “Designers usually change the ____ to change pressure, because the force is fixed.”
Time
Area
Temperature
Mass
4.
True or false? A nail's point has a tiny area, giving a very large pressure.
True
False
5.
Snowshoes ____ the pressure on the snow.
remove
increase
double
reduce
6.
True or false? A blunt blade cuts better than a sharp one.
True
False
7.
A drawing pin point has area 0.1 mm². A force of 20 N is applied. What is the pressure in N/mm²?
2000 N/mm²
20 N/mm²
200 N/mm²
2 N/mm²
8.
The bar chart shows pressure under different shoes for the same person. Which shoe sinks into sand most?
Dr Dabour Hub Academy - figure 1
Flat sandal
Trainer
Boot
Stiletto
9.
A bag weighs 100 N. A thin handle has area 2 cm²; a wide one 10 cm². How many times smaller is the pressure with the wide handle?
50 times
8 times
10 times
5 times
10.
Why do axes have sharp edges?
To be light
To give a large pressure for cutting
To be safe
To reduce pressure
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Part of Chapter 6: Forces, Motion and Pressure — see every lesson and quiz in this unit.
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