Exploring the Relationships of Pressure, Volume, and Temperature

What does it mean when two variables are directly proportional?

• They are only related under certain conditions

• They have no effect on each other

• Both variables increase or decrease together

• As one increases, the other decreases

What happens to volume when pressure increases, assuming temperature remains constant?

• Volume increases

• Volume remains constant

• Volume decreases

• Volume doubles

Why do your ears pop on an airplane?

• Due to the increase in temperature

• Because of the decrease in gas particle collisions

• Because of the decrease in cabin pressure

• Due to the increase in volume of gas in ear canals

What is the relationship between temperature and volume in a hot air balloon?

• Inverse relationship

• Direct relationship

• No relationship

• Complex relationship

What causes bread to rise during baking?

• Decrease in temperature

• Expansion of gases

• Increase in pressure

• Decrease in pressure

What happens to tire pressure in cold weather?

• It remains the same

• It fluctuates unpredictably

• It decreases

• It increases

What is the effect of heating the air inside a hot air balloon?

• The balloon descends

• The balloon ascends

• The balloon remains stationary

• The balloon deflates

Why should tire pressures not be overinflated in cold weather?

• To prevent rapid deflation

• To avoid exceeding the tire's maximum pressure as temperature increases

• To ensure the tires wear evenly

• To maintain optimal gas mileage

Why is it important to use Kelvin in the combined gas law calculations?

• It simplifies the calculations

• Celsius and Fahrenheit are not accurate

• The law only works with absolute temperatures

• Kelvin adds more precision to the measurements

What does the 'n' variable represent in the combined gas law?

• Net pressure

• Number of gas particles

• Number of moles of the gas

• Neutral temperature point