Lesson T3.1.2
T3.1.2 Pressure in liquids and upthrust Quiz: KS3 Physics, Unit 3
20 questions
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Lesson T3.1.2, Pressure in liquids and upthrust: 20 multiple choice questions for the KS3 Physics (National Curriculum), Unit 3: Pressure, written with Revision Ninja.
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The 20 questions
-
What factor causes liquid pressure to increase as you go down?
- Temperature
- Depth
- Surface area
- Volume
-
In which directions does pressure act inside a liquid at rest?
- Downwards only
- Sideways only
- Upwards only
- All directions
-
Why are dam walls built much thicker at the bottom?
- Currents are faster
- Water is colder
- Pressure increases downwards
- Gravity is stronger
-
Why does deep water press harder on a swimmer's ears?
- Lower salt content
- Greater water weight
- Faster current
- Higher water temperature
-
Which fish experiences a higher pressure in a deep lake?
- Depends on speed
- Shallower fish
- Deeper fish
- Both equal
-
In what direction does upthrust act on a submerged object?
- Rotational
- Sideways
- Downwards
- Upwards
-
What is true for an object floating stationary in water?
- Weight exceeds upthrust
- Upthrust is zero
- Upthrust exceeds weight
- Upthrust equals weight
-
What is true when a solid block sinks in water?
- Weight exceeds upthrust
- Weight is zero
- Upthrust equals weight
- Upthrust exceeds weight
-
How does a heavy steel ship manage to float?
- Magnetic repulsion
- Contains vacuum
- Displaces water
- Absorbs water
-
What is the standard SI unit of pressure?
- Watt
- Pascal
- Newton
- Joule
-
When the depth of a liquid is doubled, what happens to the pressure?
- It doubles
- It stays the same
- It halves
- It quadruples
-
What must a submarine hull withstand as it dives deeper into the sea?
- Lower water pressure
- Higher temperature
- Decreased upthrust
- Greater water pressure
-
In which direction does upthrust act on an object submerged in a fluid?
- Inwards
- Downwards
- Upwards
- Sideways
-
Why does a spring balance reading fall when a rock is submerged?
- Upthrust reduces tension
- Density increases
- Gravity decreases
- Mass decreases
-
Which two factors determine the pressure at a certain depth in a liquid?
- Density and depth
- Weight and area
- Volume and mass
- Temperature and depth
-
How does liquid pressure act on every part of a submerged diving suit?
- Only horizontally
- In all directions
- Only upwards
- Only downwards
-
At equal depths, which liquid produces higher pressure at the container bottom?
- Vacuum
- Air
- Oil
- Water
-
An object weighs 5 N in air and 3 N in water. What is the upthrust?
- 8 N
- 2 N
- 3 N
- 5 N
-
What happens to the upthrust on a fully submerged object when moved deeper?
- It increases
- It drops to zero
- It decreases
- It stays the same
-
Why does a water-filled plastic bottle sink when placed in water?
- Pressure is zero
- Weight exceeds upthrust
- Density is zero
- Upthrust exceeds weight
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