Pressure

In what direction(s) does air exert pressure?

• everywhere
• no where
• there is no pressure
• downward

Tags

NGSS.MS-PS2-5

Altitude is greater __________.

• at the bottom of the mountain
• at the top of the mountain
• at the center of the mountain

Air pressure is greater _______.

• at the top of the mountain
• at the bottom of the mountain
• at the center of the mountain

Air pressure does not crush objects on earth

• because more air pushes down than up
• because gravity keeps air pressure away
• because air pressure pushes in all directions
• because the Earth has an opposing force of gravity

If density of air is high, pressure is:

• high
• low

If density of air is low, pressure is:

• high
• low

More molecules close together, means density is:

• high
• low

Tags

NGSS.5-PS1-1

As you climb up a mountain what happens to the air pressure?

• decreases
• increases
• stays the same

What happens to the amount of oxygen molecules as altitude increases?

• fewer molecules
• more molecules
• same amount of molecules
• nothing happens to the molecules

Air pressure is greatest when near Earth's surface because?

• The air molecules are farther apart.
• The air molecules are closer together.
• Air molecules collide.
• Air molecules are tightly packed.