Trimester 3 Unit 1 Flashcards
(54 cards)
What is the difference between the density of normal bones versus bones with Osteoporosis?
There is more space between the spongy sections of the bones with Osteoporosis.
How do you improve bone health?
Increase physical activity, get enough calcium, get enough vitamin D, and maintain a healthy weight.
Solid volume units
m3, cm3
Liquid volume units
L, mL
Density
Mass per unit of volume
What is Osteoporosis?
A low density.
What is the formula for density?
Mass/volume
What is normal bone density?
> 833 mg/cm3
What is the density of osteopenia?
833-648 mg/cm3
What is the density of Osteoporosis
<648 mg/cm3
What is the formula for the density of a cylinder?
V=Pir2h
Why is it so hard to climb Mt. Everest?
Limited oxygen, temperature, fierce winds, oxygen decreases by 50%
As we go higher into our atmosphere what happens to the gases?
They will be thinner and cooler
What is the Death Zone?
a level of altitude that will kill you if you stay too long (8000m).
What are the symptoms of altitude sickness?
Pounding headaches, dehydration, loss of vision, struggle to breath.
Why can’t you get warm at high altitudes?
There’s not enough oxygen to get warm
What do we use our atmosphere for?
holds in harmful gases, warmth, to breath.
Why is our atmosphere made of gas?
The components of the air have a very low boiling point
Is the atmosphere a solution, suspension, or colloid?
Solution, everything is evenly mixed.
What is 78% of the atmosphere?
Nitrogen
What is 21% of the atmosphere?
Oxygen
What is 0.93% of the atmosphere?
Argon
What is 0.033% of the atmosphere?
Carbon Dioxide
What is the Thermosphere?
Outer most layer of the atmosphere that blocks deadly radiation and causes northern lights.
