Judge these claims about floating

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   The buoyant force on an object equals the weight of fluid it pushes aside.

2. Statement is true

   No

   Statement

   An object that sinks gets no support at all from the fluid around it.

3. Statement is true

   Yes

   Statement

   A lump of clay that sinks can be made to float by moulding it into a boat.

4. Statement is true

   No

   Statement

   An object floats when its average density is greater than the fluid's.

5. Statement is true

   Yes

   Statement

   The fraction of a floating object that sits below the surface is its specific gravity.

6. Statement is true

   No

   Statement

   Specific gravity is quoted in kilograms per cubic metre.

Instructions

Tap true or false for each claim about buoyancy and floating.

Explanation