1
What variable is a direct measure of average particle kinetic energy?
temperature
Which observation indicates more frequent particle collisions?
A) Lower pressure
B) Smaller volume
C) Fewer particles
D) Lower temperature
smaller volume
A syringe is pushed inward. What happens to the gas inside?
A. Volume increases, pressure decreases
B. Volume decreases, pressure increases
C. Volume and pressure both decrease
D. Nothing changes
B. Volume decreases, pressure increases
Why does squeezing a balloon increase the pressure inside it? (what is changing?)
Because the same amount of gas is in a smaller space, causing more collisions with the walls.
____________________ is the measurement of force per unit area
pressure
What could cause the pressure inside a metal rigid container to decrease?
removing gas particles from the tank
What is the relationship called when one variable increases as the other decreases (e.g., pressure and volume)?
inversely proportional
Explain why pressure increases when gas volume decreases at constant temperature (particle motion explanation).
With less volume, particles hit the walls more often, increasing force per area, so pressure rises.
When you air up a tire, __________ and _________ increase
volume and pressure
When you push the plunger down in a tube, what happens to collision frequency of the gas particles inside the tube with the wall of the tube?
collisons become more frequent
True or False — Boyle’s law applies only to one specific gas.
False; he tried with multiples types and got the same inversely proportional relationship
When the volume of a gas in a sealed container decreases while temperature stays the same, what happens to pressure?
pressure increases
A container with more particles of oxygen has _______ pressure than a container with less particles of oxygen
higher
The top of a mountain has ______ atmopsheric pressure than the base of the mountain
lower
What variable must be held constant to observe Boyle’s law in an experiment?
temperature
What describes a proportional relationship between two variables?
when one variable changes, the other changes in the same way
Explain why a sealed chip bag expands when taken up a mountain.
The outside pressure decreases, so the air inside pushes outward more, making the bag expand.
Which statement best matches Boyle’s law for a gas at constant temperature?
Pressure and volume are inversely proportional
Water boils at a ________ temperature on a mountain than it does at sea level
lower
Name the gas law that relates pressure and volume at constant temperature.
Boyle's Law