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Density and Buoyancy
Bethke Density and Buoyancy Test
Question | Answer |
---|---|
When an object is placed in a fluid with less density than the object, what will happen? | it will sink |
What are the downwards and upwards forces. | Weight - downwards, buoyant force - upwards |
What is the abbreviation for weight? | Fg |
How to calculate downward force? | mass(kg) x gravity(9.8m/seconds(squared)) |
What is the unit for downward force? | Newtons (N) |
What is buoyancy? | An object is buoyant in water due to the amount of water it displaces |
If the weight of an object is equal to the weight of the water it displaces what happens? | IT FLOATS |
If Fg=Fb what happens? | THE OBJECT FLOATS |
How to calculate buoyant force if you know weight in air and water? | Fb=weight in air-weight in water |
How to calculate buoyant force without knowing weight in air and water? | Density Fluid x Volume Fluid Displaced x Gravity |
What is the abbreviation for Buoyancy | Fb |
What is the density of water? | 1g/cm(cubed) |
Density Formula | D=m/V |