Forces and fluids

Forces and fluids

Multiple Choice

What happens to the buoyant force when a diver goes deeper?

• increases

• decreases

• no change

Multiple Choice

A buoyant force is a(n) ______ force 

• Upward
• Downward
• Side ways

Multiple Choice

A buoyant force is an upward force applied on an object by a 

• Substance
• Fluid
• Pressure
• Displacement

Multiple Choice

If an object is more dense than the fluid which it is in, the buoyant force will be less and the object will ... 

• float
• sink
• shrink
• expand

Multiple Choice

Which object, if thrown into a liquid, will have a greater buoyant force?

• Balloon
• Apple
• Rock
• Cell Phone

Multiple Choice

An object with a very low buoyant force acting on it will _____. 

• Sink
• Float
• Expand
• Shrink

Multiple Choice

An object will ______ if its' density is greater than the density of the fluid it is in. 

• Expand
• Shrink
• Float
• Sink

Multiple Choice

Archimedes' principle states that the weight of the fluid an object displaces is equal to the buoyant force acting on the object. 

• True
• False

Multiple Choice

How much was the original force multiplied?

•   6.4 x
• 8.3 x
• 5 x
• 7 x

Multiple Choice

A force is applied in a closed container, the pressure increases the same amount. EX: squeezing a water bottle or toothpaste

• Archimede's Principle
• Pascal's Principle
• Bernoulli's Principle 

Multiple Choice

Look at the pressure triangle. How do we calculate the area?

• f ÷ a
• f x p
• p x f
• f ÷ p

Multiple Choice

Where is pressure the greatest on the dam?

• D
• C
• B
• A