8th Science ALCOS 9a

30 terms

This scientific rule describes why water squirts from a plastic bottle when it is squeezed

Pascal's principle

One application of Pascal's principle is

a hydraulic car lift

fluids

depth increases

Air pressure decreases as

elevation increases

it decreases

pascal

Snowshoes enable a person to walk on deep snow because the snowshoes

increase the area over which the person's weight is distributed

multiply force

Which of the following is true of the buoyant force?

It acts in the upward direction

What effect does a buoyant force have on a submerged object?

It causes a net force acting upward on the object

What scientific rule states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?

Archimedes' principle

increases

A ship stays afloat as long as the buoyant force is

equal to the ship's weight

Pascal's principle states that when force is applied to a confined fluid, the change in pressure is transmitted

equally to all parts of the fluid

A pitcher is able to throw a curve ball partly because of

Bernoulli's principle

flight

release water

sink

Which scientific rle describes why water squirts from a bottle when it is squeezed?

Pascal's Principle

A material that can easily flow

is called a fluid

What scientific rule states that the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid?

Bernoulli's principle

Which of these multiplies a force by transmitting it to a large surface area?

a hydraulic system

The braking system on a car is an example of

a hydraulic system

force and area

increases

greater than

less than

How do fluids exert pressure?

Particles of fluids exert forces when colliding with surfaces

The lava in a lava lamp is able to rise and fall partly due to

Archimedes' Principle