Unit 3: Gas Laws Test Review

Which statement BEST describes air pressure at high altitudes?

• Air pressure decreases as altitude increases

• Air pressure increases as altitude increases

• Air pressure does not change as altitude increases

• It is impossible to accurately measure air pressure at high altitudes.

What happens to pressure if volume decreases in a gas?

• Pressure stays the same

• Pressure increases and then decreases

• Pressure increases

• Pressure decreases

What happens to pressure if temperature increases?

• Pressure decreases

• Pressure increases

• Pressure stays the same

Which statement BEST describes the gas in a scuba tank?

• The gas is compressed

• The molecules of gas are moving slowly

• The gas barely fits its container

Tags

NGSS.MS-PS2-2

What will happen if a balloon is placed in a freezer?

• It will stay the same size because there is no relationship between volume and temperature

• It will expand because volume is inversely proportional to temperature

• It will deflate because volume is directly proportional to temperature

• It will deflate because volume is inversely proportional to temperature

Tags

NGSS.MS-PS1-4

What happens with a gas is compressed?

• Volume is increased

• Density is increased

• Temperature is decreased

• Pressure is decreased

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What changed when the temperature was changed in the "Gas Laws" lab?

• gravity and volume

• weight and volume

• volume and pressure

• mass and volume

Tags

NGSS.MS-PS1-4

Which statement about the volume and pressure of a gas is MOST accurate?

• Volume of a gas is equal to pressure of that gas in any container?

• Volume of a gas is always greater than pressure of that gas in any container.

• Volume of a gas is directly proportional to pressure of that gas in any container

• Volume of a gas is inversely proportional to pressure of that gas in any container.

What is the temperature of a gas in which the atoms are moving very, very slowly?

• cold

• hot

• room temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What object measures atmospheric pressure?

• a thermometer

• a ballas tank

• a barometer