Unit 1: Lesson 2 & 3 - Changes in Temperature and Pressure

What happens to the pressure of a gas when the volume of its container decreases?

• The pressure increases

• The pressure decreases

• The pressure stays the same

• The pressure drops to zero

Boyle's law describes the relationship between pressure and volume. Which of the following best describes this relationship?

• As volume increases, pressure increases

• As volume decreases, pressure increases

• Volume and pressure are not related

• Volume decreases, but pressure stays the same

Why do scuba divers need to monitor the pressure in their air tanks?

• To ensure they have enough oxygen for the dive

• To keep the tank from overheating

• To check the temperature of the water

• To calculate the depth of their dive

How does adding more gas particles into a container affect the pressure inside the container?

• It decreases the pressure

• It has no effect on pressure

• It increases the pressure

• It increases volume, but pressure stays the same

What happens to the volume of a gas when its temperature increases, according to Charles's law?

• Volume decreases

• Volume increases

• Volume stays the same

• Temperature and volume are not related

Tags

NGSS.MS-PS1-4

Why does a balloon deflate when taken outside on a cold day?

• The pressure inside the balloon increases

• The air inside the balloon loses thermal energy

• The air particles inside the balloon move faster

• The balloon absorbs moisture from the air

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is an example of thermal contraction?

• A balloon expanding when heated

• Water freezing into ice

• A balloon shrinking in the cold

• A liquid evaporating into gas

Tags

NGSS.MS-PS1-4

How does a change in pressure affect the state of matter of a substance, such as water?

• Increased pressure can cause water to freeze at a higher temperature

• Decreased pressure makes water boil at a lower temperature

• Increased pressure causes water to evaporate faster

• Pressure has no effect on states of matter

Tags

NGSS.MS-PS1-4

Why is air pressure important for evaporation to occur?

• It slows down evaporation

• Particles must overcome air pressure to evaporate

• It causes water to freeze

• Air pressure keeps particles from moving

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the boiling point of a liquid when the pressure on its surface increases?

• The boiling point decreases

• The boiling point stays the same

• The boiling point increases

• The boiling point disappears

Tags

NGSS.MS-PS1-4