Topic 6: Air Pressure

How does air pressure change with altitude?

• Remains constant

• Decreases

• Increases

• Fluctuates randomly

What happens when air is sucked out of a container?

• High pressure inside the container

• Low pressure inside the container

• Pressure becomes negative

• No change in pressure

What causes higher air pressure outside a straw when you try to drink from it?

• Air pressure difference

• Air movement

• Temperature difference

• Gravity

Why does a plunger create low pressure inside a clogged drain?

• It releases gas

• It creates a vacuum

• It pushes air out

• It heats up the air

What is the relationship between air pressure and the number of air particles at higher altitudes?

• More particles, higher pressure

• Fewer particles, higher pressure

• More particles, lower pressure

• Fewer particles, lower pressure

Which statement is true about air pressure at the top of a mountain compared to the base?

• Depends on the mountain

• Equal at both locations

• Lower at the top

• Higher at the top

What is the main factor responsible for creating air pressure?

• Wind speed

• Air temperature

• Air particle collisions

• Humidity levels

How does air pressure affect the flow of water in a straw?

• Pulls water out of the straw

• Stops the flow of water

• Pushes water into the straw

• No effect on water flow

Which part of the siphon create the greater pressure that can cause water to flow down?

• The upper container

• The pipe

• Both are the same

• The lower container

What happens to air pressure inside a balloon when it is inflated?

• Decreases

• Increases

• Remains constant

• Becomes negative