This document contains 5 questions about air pressure and the human respiratory system. Question 1 asks about what causes inhalation and lists options related to changes in chest cavity pressure and volume. Question 2 is about how decreasing the air pressure in a car tire can indicate the factor air pressure depends on. Question 3 asks what will happen to air particles inside a heated balloon. Question 4 asks why a person could not blow up a balloon in a vacuum. And Question 5 asks which statement explains why air pressure decreases when temperature decreases.

1. EXERCISE :
CHAPTER 6
Air Pressure

2. QUESTION 1
In the human respiratory system, inhalation
takes place when the diaphragm is pulled
down. This is because
A. The pressure in the B. The volume of the
chest cavity increases chest cavity increases
C. The temperature
D. Outside air
of the chest cavity
pressure increses
increases

3. QUESTION 2
When some air is released from the type of a
car, the pressure of the air in the tires
decreases. Form this we can conclude that air
pressure depends on
A. The temperature of B. The volume of the
the air in the tyre air in the tyre
C. The number of the air D. The speed of the air
particles in the tyre particles in the tyre

4. QUESTION 3
The air inside the balloon is heated with a fire.
What will happen to the particles of air inside
the balloon ?
B. They will move closer
A. They will move slowly
together
C. They will collide with
D. They will become
the wall of the balloon
heavier
more frequently

5. QUESTION 4
He will not be able to do this in a
vacuum because
A. The air pressure in B. The water is
a vacuum is zero heavier in a vacuum
C. There is no gravity D. The temperature
in a vacuum is zero in a vacuum

6. QUESTION 5
Which of the following statements explains
why the pressure of air decreases when the
temperature decreases ?
A. The air particles B. The air particles move
come closer together faster
C. The air particles D. The air particles
become bigger expand

7. THANK YOU FOR TRYING