U4L3--Gas Behavior

John's basketball has a hole in it. At what point will air stop pouring out of the hole in the basketball?

• A.  when all of the air has escaped from the tire

• B.  when the air pressure in the tire is less than atmospheric pressure

• C.  when the air pressure in the tire is equal to atmospheric pressure

• D.  when the air pressure in the tire is greater than atmospheric pressure

Sally increases the temperature of a gas in an expandable container. If she keeps the pressure constant, what will happen to the volume of the gas?

• A.  The volume will decrease.

• B.  The volume will increase.

• C.  The volume will remain the same.

• D.  The volume will decrease, then increase.

What happens to the pressure of a gas when its volume is decreased while its temperature remains constant?

• A.  The pressure decreases.

• B.  The pressure remains the same.

• C.  The pressure increases.

• D.  The pressure first increases, then decreases.

When a balloon is taken from a warm room to a cold room, what happens to the volume of the air inside the balloon?

• A.  The volume increases.

• B.  The volume decreases.

• C.  The volume remains the same.

• D.  The volume first increases, then decreases.

Tags

NGSS.MS-PS1-4

Kenneth warmed up a 50-mL sample of air in an expandable container. He displayed the results in the following graph. The results formed a straight line, so he extended the line the full length of the graph.

About what temperature did the gas have a volume of 90 mL?

• A.  19 K

• B. 250 K

• C.  110 K

• D.  300 K

Sam and Jenny performed several experiments to show how changes in temperature affected the volume of an inflated volley ball. They made sure the pressure stayed the same. They also showed the effects of pressure on volume if temperature stayed the same. They organized their information in this table.

Which experiments provide evidence for Boyle’s law?

• A.  A and B

• B.  C and D

• C.  A and C

• D.  B and D