PhysicsC Chapter 13 Quiz Review

The same force is exerted by each of the following objects. Which exerts the most pressure?

• A finger

• A needle

• A calculator

• A foot

What is an example of a fluid?

• A book

• air

• a car

• a guitar

What is an example of a fluid?

• Juice

• A calculator

• a cup

• Rust

True or False: The pressure at a depth of 2 feet in a large lake is equal to the pressure at the same depth in a swimming pool?

• True

• False

True or False: If you squeeze a container filled with fluid, the pressure within the fluid increases the top force more than the bottom forces

• True

• False

True or False: In a hydraulic system, the output force is greater than the input force because the pressure acting on the output piston is greater than the pressure acting on the input piston

• True

• False

How does air pressure change as a function of altitude?

• It doesn't

• It increases with increasing altitude

• It decreases with increasing altitude

Because the air traveling over the top of a airplane wing moves faster than the air passing underneath the wing, the pressure above the wing is _______ than the pressure below the wing

• greater

• less

• equal

What sentence correctly states Bernoulli's principle?

• As the speed of the fluid decreases, the pressure within the fluid decreases

• As the speed of a fluid increases, the pressure within the fluid increases

• As the speed of a fluid increases, the pressure within the fluid decreases

• Fluid motion has no effect on pressure within the fluid

What is the correct equation for Pressure?

• Pressure = Force/Newtons

• Pressure = Force/Area

• Pressure = Force x Area

• Pressure = Area x Speed