Grade 8 Buoyancy Worksheet
Explore the principles of buoyancy, Archimedes' Principle, and density with this engaging Grade 8 science worksheet.
Includes
Standards
Grade 8 Buoyancy Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What is the upward force exerted by a fluid that opposes the weight of an immersed object?
Gravity
Buoyant force
Density
Mass
2. According to Archimedes' Principle, the buoyant force on an object is equal to the:
Volume of the object
Mass of the object
Weight of the fluid displaced by the object
Density of the object
3. An object will float if its density is than the density of the fluid it is in.
4. The unit for buoyant force is .
5. A steel ship floats because its average density (including the air inside) is less than the density of water.
True
False
6. The buoyant force acting on a submerged object decreases as the depth of the object increases.
True
False
7. Explain why a small pebble sinks in water, but a large log floats.
8. A block of wood has a volume of 0.05 m³ and a mass of 40 kg. Will it float or sink in water (density of water = 1000 kg/m³)? Show your calculations.