Pressure & Gas Laws

When you increase your altitude there are less air molecules. Therefore the atmospheric pressure would,

• increase

• decrease

• stays the same

When you increase your depth under water, there are more and more layers of water above you. The increased force or weight of water with increased depth does what to the pressure?

• increases it

• decreases it

• keeps it the same

Where is the air pressure the greatest? Think: at what point would you have the most layers of air above your head (remember air weighs something)?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS2-5

Twin sisters both weigh exactly 100 lbs. Looking at the area over which their forces are distributed, which sister puts more pressure on the floor?

• Ava

• Eva

• The put equal amounts of pressure on the floor since the weigh the same.

What is pressure?

• The amount of force exerted on a surface

• The surface area of an object

• The weight of an object

• The strength of a force

The diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

• The design of this structure is stronger.

• Water pressure increases with depth.

• The cost of construction is lower.

• Water pressure acts uniformly in all directions.

Tags

NGSS.MS-ETS1-1

As the area over which a force is applied increases, pressure......

• increases

• decreases

• stays same

• none

What pressure does a 4000N horse exert on the ground if each of it's feet has a surface area of 10cm²?

• 40 N/cm²

• 100 N/cm²

• 400 N/cm²

• 10 N/cm²

The pressure resulting from a force of 50 N exerted over an area of 5 m² is

• 10 N
• 0.1 N
• 10 N/m2
• 0.1 Pa

Which container will have a lower pressure? Assume both containers have an equal amount of gas.

• left

• right

• They both have the same pressure.

• Gas molecules don't exert pressure.