F5 2.5 Archimedes principle

Diagram below shows a swan on the surface of water. The weight of water displaced by the swan is

• Equal to buoyant force

• More than the buoyant force

• Less than the buoyant force

• same as the volume of the swam

Figure below show a man on a float in a swimming pool. Which of the following is true?

• Volume of the water displaced>volume of the man + volume of the float

• Volume of the water displaced=volume of the man + volume of the float

• Weight of the water displaced>weight of the man + weight of the float

• Weight of the water displaced= weight of the man + weight of the float

Diagram below show icebergs floating on the surface of the water. Which of the following is incorrect?

• Weight of the iceberg = weight of the sea water displaced

• Weight of sea water displaced= Buoyant force acting on iceberg

• Volume of the iceberg= volume of sea water displaced

• Volume of the iceberg is more than the volume of sea water displaced

4. Which of the following is not the application of Archimedes' principle?

• A. Hydrometer
• B. Hot air balloon
• C. Submarine
• D. Aeroplane

What will happens to the readings when the load if taken out of water?

• Compression balance: decreases ; Spring balance increases

• Compression balance: decreases ; Spring balance decrease

• Compression balance: increases ; Spring balance increases

• Compression balance: increases ; Spring balance decreases

• 2.7N

• 3.5N

• 6.2N

• 8.9N

What is the purpose of the plimsoll line marked on the side of a ship?

• to shows the maximum weight of the ship

• to balance the ship

• to check the capacity of the ship

• to shows the maximum depth of immersion due to change in density of water

A hot air balloon accelerating upward because

• Weight of the hot air balloon equal to the weight of air displaced

• Weight of the hot air balloon is greater than buoyant force

• Weight of the hot air balloon is lower than the weight of the air displaced

• Weight of the hot air balloon is greater than weight of the air displaced

A boat sink more in river water than in sea water because

• Density of sea water is larger than density of river water

• Density of river water is larger than density of sea water

• Mass of river water is larger than mass of sea water

• Mass of sea water is larger than the mass of river water

Which of the statement below is correct?

• Buoyant force= Volume of sea water displaced

• Buoyant force= Weight of the ship

• Buoyant force= Weight of sea water displaced

• Buoyant force= Volume of the section of the ship immersed in sea water