Judge these floating and sinking lines

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Upthrust equals the weight of fluid displaced.

2. Statement is true

   No

   Statement

   An object floats when its average density exceeds the fluid's.

3. Statement is true

   Yes

   Statement

   A submarine submerges by taking in water to increase weight.

4. Statement is true

   No

   Statement

   An iron ship floats because iron is less dense than water.

Instructions

Tap true or false for each line about upthrust, density and why things float.