Ch. 12 Test Review

Weight in air = 27N.  Weight in water, spring scale reads 22.5N.  What is the buoyant force?

Pressure occurs when a _____ is applied over an area

pressure depends on _____ and _____.

How does pressure transfer through a fluid?

This unit of pressure is the SI unit.

SI unit of pressure is a _____.

An object has a force of 206N acting over an area of 1.4m².  What is the pressure?

Input force = 1250N, Input area = 2.2 m².  FInd output force if A_out = 3.7 m²

Pressure flows from _____.

How does pressure transfer in a solid?

_____ Principle states that the buoyant force is equal to the weight of fluid displaced.

_____ Principle states that the pressure in a fluid is the same throughout.

Any matter that flows when force is applied is called _____.

_____ Principle can be used to explain lift in planes.

If buoyant force < weight of object, the object will _____.

If buoyant force > weight of object, the object will _____.

A fluid can be a _______.

Pressure comes from the _____ of atoms or molecules.

_____ Principle can be used to explain hydraulic lifts.

Machines that operate by fluids under pressure are called _____.

An object displaces 0.22 kg of water. What is it's buoyant force?

Strength of buoyant force depends on _____ of object underwater.

This unit of pressure is used when monitoring hurricanes.

This unit of pressure is used in barometers.

Which of the following is a unit of pressure?

_____ Principle states that an increase in the speed of a fluid creates an area of low pressure

How can you decrease density without changing mass?

This unit of pressure is used when diving.

buoyant force acting on an object _____ weight of fluid displaced.

A measure of the upward force in a fluid on an object is _____.

This unit of pressure is used in bike tires and sports equipment.

If density of object < density of fluid, the object will _____.

If density of object > density of fluid, the object will _____.

If ball displaces 2.4 N of water, what is the buoyant force?