Forces and Pressure

1.

Multiple Choice

2 mins

1 pt

The ratio of the weight of all the air above you to your surface area

fluid

atmosphere

atmospheric pressure

buoyant force

2.

Multiple Choice

2 mins

1 pt

Any substance that can flow and take the shape of the container that holds it

gas

liquid

fluid

solid

3.

Multiple Choice

2 mins

1 pt

The amount of force per unit area applied to an object's surface

pressure

force

work

mass

4.

Multiple Choice

2 mins

1 pt

An upward force applied by a fluid on an object in the fluid

Bernoulli

Buoyant force

gravity

Archimedes

5.

Multiple Choice

2 mins

1 pt

The weight of the fluid that an object displaces is equal to the buoyant force acting on the object

Archimedes' Principle

Bernoulli's Principle

Pascal's Principle

6.

Multiple Choice

2 mins

1 pt

If the weight of an object is greater than the buoyant force what happens?

It sinks

It floats

It goes up in the air

7.

Multiple Choice

2 mins

1 pt

If the weight of an object is equal to its buoyant force what happens?

it sinks

it floats

it goes up in the air

8.

Multiple Choice

2 mins

1 pt

Pressure=

force/area

area/force

weight/force

weight/area

9.

Multiple Choice

2 mins

1 pt

The pressure of a fluid decreases when the speed of that fluid increases.

Archimedes' Principle

Bernoulli's Priciple

Pascal's Principle

10.

Multiple Choice

2 mins

1 pt

A force that opposes the motion of an object through a fluid.

pressure

buoyant force

drag force

fulcrum

11.

Multiple Choice

2 mins

1 pt

When the pressure is applied to a fluid in a closed container, the pressure increases by the same amount everywhere in the container.

Archimedes' Principle

Bernoulli's Principle

Pascal's Principle

12.

Multiple Choice

2 mins

1 pt

The _____ changes on one side of a soccer ball when a spin is put on the ball.

pressure

force

speed

13.

Multiple Choice

2 mins

1 pt

If the roof on a house blows up and away, the pressure outside is ________ than inside the house.

greater

less

14.

Multiple Choice

2 mins

1 pt

Car mechanics rely on which principle?

Archimedes'

Bernoulli's

Pascal's

15.

Multiple Choice

2 mins

1 pt

Ships rely on which principle?

Archimedes'

Bernoulli's

Pascal's

16.

Multiple Choice

2 mins

1 pt

Garden hoses help to illustrate which priniciple?

Archimedes'

Bernoulli's

Pascal's

17.

Multiple Choice

2 mins

1 pt

When you _____ the pressure of a moving fluid, the speed of the fluid will

increase.

increase

decrease

18.

Multiple Choice

2 mins

1 pt

Which substance can occupy different volumes, depending on the container?

liquid

gas

fluid

19.

Multiple Choice

2 mins

1 pt

Which factor does NOT affect the density of a fluid?

mass

weight

volume

20.

Multiple Choice

2 mins

1 pt

At which location would atmospheric pressure be the greatest?

Sea level

the top of a mountain

the bottom of a valley

the surface of the water

21.

Multiple Choice

2 mins

1 pt

In which direction does drag force act upon an object?

upward

downward

with motion

against motion

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