| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
50°F is how many °C?
10 |
|
-10 |
|
58 |
|
122 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (50 - 32)\)
\(C° = {5 \over 9} (18)\)
\(C° = {90 \over 9}\)
\(C° = 10\)
__________ is caused by a lack of Vitamin C.
scurvy |
|
anemia |
|
shingles |
|
diabetes |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
The formula for acceleration is which of the following?
\(\vec{a} = \vec{F} m\) |
|
\(\vec{a} = { m \over F }\) |
|
\(\vec{a} = { \vec{F} \over m }\) |
|
\(\vec{a} = { m \over \vec{F} }\) |
Newton's second law of motion leads to the formula for acceleration which is a measure of the rate of change of velocity per unit time and, if you solve for positive acceleration, reveals how much net force is needed to overcome an object's mass. The formula for acceleration is \(\vec{a} = { \vec{F} \over m }\) or, solving for force, \(\vec{F} = m\vec{a}\).
Which of the following states of matter exists at the lowest temperature?
none of these |
|
solid |
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liquid |
|
gas |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
Blood is created in:
red blood cells |
|
the liver |
|
bone marrow |
|
the heart |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.