barometer - Assessment

1.

Multiple Choice

30 sec

1 pt

What happens to air pressure as you move upward into the atmosphere?

increases

decreases

stays the same

2.

Multiple Choice

30 sec

1 pt

A device that is used to measure atmospheric pressure is a ___________.

barometer

thermometer

kilometer

micrometer

3.

Multiple Choice

30 sec

1 pt

Explain what would happen to the column of mercury in the barometer as shown if the atmospheric pressure fell.

As the pressure falls, the column of mercury will drop lower.

As the pressure falls, the column of mercury will remain unchanged.

As the pressure falls, the column of mercury will rise higher.

As the pressure falls, the density of the mercury will increase.

4.

Multiple Choice

30 sec

1 pt

Pressure is the effect of

the weight of all the air above pressing down

water vapor in the atmosphere

greenhouse gases

solar radiation

5.

Multiple Choice

1 min

1 pt

The diagram shows an apparatus set up to measure atmospheric pressure.

Calculate the pressure at point Q.

10 cm Hg

85 cm cm Hg

90 cm Hg

15 cm Hg

6.

Multiple Choice

2 mins

1 pt

The diagram shows a set up of apparatus for measuring atmospheric pressure. If the density of mercury is

13,600 kgm^-3, determine the atmospheric pressure as measured by the instrument.

100,000 Pa

101,000 Pa

123,760 Pa

103,360 Pa

7.

Multiple Choice

2 mins

1 pt

The barometer shows the reading when the atmospheric pressure is 101,000 Pa. The height of the column of mercury is h. What is the pressure at point X?

0 Pa

25,250 Pa

75,750 Pa

101,000 Pa

8.

Multiple Choice

2 mins

1 pt

The figure shows a simple barometer with some air trapped in the tube. Given that atmospheric pressure is 76 cm Hg, find the pressure of the trapped air.

21 cm Hg

24 cm Hg

45 cm Hg

55 cm Hg

9.

Multiple Choice

2 mins

1 pt

A barometer is used to determine the pressure of the atmosphere. The barometer shows the pressure on a particular day. If the density of mercury is 13,600 kg m^-3, what is the reading of the barometer?

101,000 Pa

102,000 Pa

10,200 Pa

1,020 Pa

10.

Multiple Choice

1 min

1 pt

The barometer in the diagram shows the measurement of the atmospheric pressure. At sea level, the atmospheric pressure is 76 cm Hg. Why is the reading of this barometer different?

The barometer is broken

The barometer is measuring water pressure

The barometer is below sea level

The barometer is above sea level

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