| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.94 |
| Score | 0% | 59% |
An asteroid belt holds many of the asteroids in our solar system. It is located between the orbits of which planets?
Mercury and Venus |
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Mars and Jupiter |
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Jupiter and Saturn |
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Mars and Earth |
The solar system also contains over a million rocky fragments of at least 1km in diameter called asteroids as well as millions more with smaller diameters. Many of these asteroids are an asteroid belt between the orbits of Mars and Jupiter.
Which of the following states of matter exists at the lowest temperature?
solid |
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liquid |
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gas |
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none of these |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
The universal recipient blood type can recieve any other blood type. Which blood type is the universal recipient?
AB |
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O |
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AB-positive |
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O-negative |
Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.
Which of the following is the formula for power?
\(P = \vec{w}t\) |
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\(P = {w \over t}\) |
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\(P = {\vec{w} \over t}\) |
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\(P = w t\) |
Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).
Which of these digestive enzymes is not produced by the pancreas?
trypsin |
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lipase |
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pancreatic amylase |
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gastric acid |
The acids produced by the pancreas contain several enzymes that aid in digestion. Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.