Density pressure
This presentation is the property of its rightful owner.
Sponsored Links
1 / 23

Density ^  Pressure ^ PowerPoint PPT Presentation


  • 62 Views
  • Uploaded on
  • Presentation posted in: General

Density ^  Pressure ^. Volume decreases  Pressure ^. -- Questions --. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Download Presentation

Density ^  Pressure ^

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Density pressure

Density ^  Pressure ^

Volume decreases  Pressure ^


Questions

-- Questions --

MULTIPLE CHOICE.

Choose the one alternative that best completes the statement or answers the question.


Density pressure

  • 1) Consider two mercury barometers, one with twice the cross-sectional area of the other. Neglecting capillarity, mercury in the smaller tube will rise

    • A) the same height as in the larger tube.

    • B) twice as high as mercury in the larger tube.

    • C) four times as high as mercury in the larger tube.

    • D) more than four times as high as in the larger tube.

    • E) none of these.

  • 2) The depth to which an inverted drinking glass must be pushed beneath the surface of water so that the volume of enclosed air is squeezed to half is

    • 76 cm.

    • 10.3 m.

    • 14.7 m.

    • 20.6 m.

    • E) 29.4 m.


Density pressure

  • 3) As a helium-filled balloon rises in the air, it becomes

    • A) more dense.

    • B) heavier.

    • C) bigger.

    • D) all of these.

    • E) none of these.

  • 4) Atmospheric molecules do not fly off into outer space because of

    • their relatively low densities.

    • B) Earth gravitation.

    • C) cohesive forces.

    • D) their relatively high speeds.


Density pressure

  • 5) Estimate the mass of air inside an average automobile.

    • A) 2 grams

    • B) 2 kilograms

    • C) 20 kilograms

    • D) 200 kilograms

    • E) 2000 kilograms

  • 6) A common 5-liter metal can will float in air if it is

    • A) filled with a very large amount of helium.

    • B) evacuated of air.

    • C) thrown high enough into the air.

    • D) nonsense! Unless the displaced air weighs more than the can and its contents, the can will not float in air.


Density pressure

  • 7) A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the same column instead had the same mass of mercury in it, the height of the mercury column would be

    • A) 1/13.6 times the height of the atmosphere.

    • B) about 3/4 meter.

    • C) 10.3 meters.

    • D) about 5.6 kilometers.

  • 8) The weight of a 1-square-meter column of air that extends from sea level to the top of the atmosphere is

    • 10,100 N.

    • 101,000 N.

    • 101 N.

    • D) 101,000,000 N.


Density pressure

  • 9) It would be easier to pull evacuated Magdeburg hemispheres apart when they are

    • A) held upside down.

    • B) 20 km beneath the ocean surface.

    • C) at sea level.

    • D) 20 km above the ocean surface.

    • E) none of these.

  • 10) The energy source responsible for the motion of molecules that make up the atmosphere is

    • A) atmospheric tides.

    • B) the pressure caused by the weight of air.

    • C) their own natural kinetic energy.

    • D) solar power.


Density pressure

  • 11) What is the approximate mass of a 1-square-centimeter column of air that extends from sea level to the top of the atmosphere?

    • 1 gram

    • 1 kilogram

    • 10 kilograms

    • D) 100 kilograms

  • 12) A bubble of air released from the bottom of a lake

    • A) rises to the top at constant volume.

    • B) alternately expands and contracts as it rises.

    • C) becomes larger as it rises.

    • D) becomes smaller as it rises.

    • E) none of these.


Density pressure

  • 13) On a windy day, atmospheric pressure

    • decreases.

    • remains unchanged.

    • C) increases.

  • 14) Atmospheric pressure is caused by the

    • A) density of the atmosphere.

    • B) temperature of the atmosphere.

    • C) effect of the sun's energy on the atmosphere.

    • D) weight of the atmosphere.


Density pressure

  • 15) In a vacuum, an object has no

    • A) buoyant force.

    • B) mass.

    • C) temperature.

    • D) weight.

    • E) all of these.


Answers

-- Answers --

MULTIPLE CHOICE.

The one alternative that best completes the statement or answers the question.


Density pressure

Chapter 14

1) Answer: A

2) Answer: B

3) Answer: C

4) Answer: B

5) Answer: B

6) Answer: D

7) Answer: B

8) Answer: B

9) Answer: D

10) Answer: D

11) Answer: B

12) Answer: C

13) Answer: A

14) Answer: D

15) Answer: A


  • Login