Abeka 9th Science Quiz 8

Which is a device that uses atmospheric pressure to measure altitude?

• Thermometer
• Anemometer
• Altimeter
• Barometer

Which is a device that is used to measure atmospheric pressure?

• Barometer
• Hygrometer
• Anemometer
• Thermometer

If the volume is constant and pressure of a gas increases, the temperature will_________.

• decrease
• remain the same
• increase
• fluctuate

What is the ability of a gas to be easily squeezed or compacted called?

• Pressure
• Viscosity
• Density
• Compressibility

Which law is this formula showing?

P1V1 = P2V2

• Charles's Law
• Avogadro's Law
• Newton's Law of Cooling
• Boyle's Law

Which law is this formula showing?

V1 = V2

T1 = T2

• Boyle's Law
• Avogadro's Law
• Charles's Law
• Ideal Gas Law

Which law is this formula showing?

P1 = P2

T1 = T2

• Amontons's Law

• Avogadro's Law
• Charles's Law
• Boyle's Law

Which of the following statements best explains why a liquid moves up a straw?

• The liquid is sucked up by the vacuum created in the straw.
• Air pressure in the straw is less than the air pressure outside the straw.

• The liquid rises due to gravity pulling it downwards.
• The liquid moves up because of the heat from the surrounding air.

Explain why the temperature in the gas laws must be measured on an absolute scale (like the Kelvin scale) instead of a relative scale (like the Celsius scale)?