Principle and Flotation (Fill in the Blanks with
Answers)
FILL IN THE BLANKS (WITH ANSWERS)
1. Upward force acting on a body in a fluid is called ________.
Answer: Upthrust
2. Another name for upthrust is ________.
Answer: Buoyant force
3. The principle explaining floating of bodies is ________.
Answer: Archimedes’ Principle
4. Density is defined as ________ per unit volume.
Answer: Mass
5. SI unit of density is ________.
Answer: kg/m³
6. Relative density of pure water is ________.
Answer: 1
7. A body floats when upthrust is equal to ________.
Answer: Weight
8. A body sinks when its weight is ________ than upthrust.
Answer: Greater
9. Instrument used to measure relative density of liquids is ________.
Answer: Hydrometer