Focus On Life Science: California Grade 7

Lesson 2: Pressure and the Body

Standards Check

1.
How is pressure calculated? 6.j
A)area times force
B)area divided by force
C)force divided by area
D)force times area
2.
Which is the best way to increase the pressure in a tire? 6.j
A)push against the tire
B)decrease the amount of air
C)deflate the tire
D)increase the amount of air
3.
What condition is characterized by a dangerous rise in blood pressure? 6.j
A)shock
B)hypertension
C)heart disease
D)obesity
4.
The heart pumps blood in ______ direction(s). 6.j
A)one
B)two
C)three
D)many
5.
Which is the correct order for blood flowing through the heart? 6.j
A)right atrium to left ventricle to body
B)right atrium to left atrium to lungs to right ventricle to left ventricle to body
C)right atrium to lungs to left ventricle to body
D)right atrium to right ventricle to lungs to left atrium to left ventricle to body
6.
What prevents the backflow of blood? 6.j
A)aorta
B)veins
C)arteries
D)valves
7.
Which organ is the body's pump? 6.j
A)kidney
B)lung
C)heart
D)stomach
8.
Where is blood under the greatest pressure? 6.j
A)in the arteries
B)in the veins
C)in the capillaries
D)in the lymph vessels
9.
Force exerted on an area is called __________. 6.j
A)pressure
B)gravity
C)temperature
D)mass
Grade 7
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