Behavior of Gases 15.3

What is something you can do to make your ears "pop" and relieve pressure when you are riding in a car in the mountains?

• Swallow a couple of times

• Press on your ears

• Turn your head upside down

• Close your eyes

Which of the following is NOT a reason that makes gases difficult to study?

• They are usually colorless

• They easily mix with other gases

• They have no mass

Answer explanation

Gases DO have mass!

What is added to propane gas to make it easier to detect in case there's a leak?

• A little sparkly glitter

• A chemical that makes it smell like rotten eggs

• A chemical that makes it glow in the dark

• A dark color that stains everything it touches

What is carbon monoxide?

• The stuff we exhale

• A black rock

• A dangerous, colorless, scentless gas

• A type of black smoke

The attractive forces between the particles in a gas are _____.

• extremely strong

• kind of strong

• constantly increasing

• extremely weak

When gas particles are enclosed in a container, the particles collide with the container and each other, resulting in _____.

• density

• shrinking

• pressure

• magnetism

When the volume of a gas decreases, the pressure _____.

• increases

• decreases

• stays the same

• sharply increases, then decreases

_____ states, "The pressure of a gas increases if the volume of a gas decreases, and the pressure of a gas decreases if the volume increases when the temperature is constant."

• Boyle's Law

• Charles' Law

• The Law of Gravity

• Terrell's Law

If you squeeze a balloon, the pressure inside the balloon would _____

• decrease

• increase

• stay the same

• disappear

Tags

NGSS.MS-PS1-4

When the temperature of a gas increases, the volume of the gas _____.

• decreases

• stays the same

• increases

Tags

NGSS.MS-PS1-4