Name _______________________
practice questions pressure

1.) What causes atmospheric air pressure? 

                 b.) What happens to air pressure as you go up a mountain?  Explain why.

2.) What is normal air pressure in PSI?. 

                 b.) My back has a width of 20 inches and a width of 15 inches.  How much air (in pounds) does my back support?

                c.) Why am I not crushed to the floor?

3.) What cause pressure inside a balloon?

4.) I have a cylinder that has a pressure of 150 atm.  What is the pressure in PSI (SHOW WORK)

5.) The Titanic rest on the bottom of the ocean floor at the depth of around 12,000 feet. Every 33 feet of water is equal to 1 atmosphere of pressure. Find the pressure on the Titanic in atmospheres.

                b.) Find the pressure in PSI

6.) What is Boyles law?

                b.) Write the mathematical formula for it.

                c.) What are two factors that are constant for Boyles law?

7.) I have a container of gas that has 5 L of gas at 45 PSI.  If I increase the volume to 15 L, what will be the new pressure of the gas?

8.) Explain in detail why the egg went in the bottle

9.) Is it dangerous to heat a closed metal container full of gas (like you propane tank)?  Why or why not?

10.) Explain why it might be more difficult for a person on crutches to walk across a muddy field than a person with regular shoes. (be sure to include pressure and area in your answers.