| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
-40°F is how many °C?
-8 |
|
-40 |
|
\({40 \over 9}\) |
|
\(-{40 \over 9}\) |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)
Changes to an object's speed or direction of motion are caused by which of the following?
kinetic energy |
|
work |
|
power |
|
a force |
Force is applied to change an object's speed or direction of motion.
In cell biology, where does DNA replication take place?
Golgi apparatus |
|
nucleus |
|
mitochondria |
|
cytoplasm |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic mass |
|
atomic weight |
|
number of electron shells |
|
atomic number |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
__________ is caused by a lack of Vitamin C.
anemia |
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diabetes |
|
scurvy |
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shingles |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.