| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.58 |
| Score | 0% | 72% |
Force is measured in newtons (N) with 1 N being the force required to impart an acceleration of:
1 m/s2 to a mass of 1 kg |
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1 mph to a mass of 1 kg |
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1 m/s to a mass of 1 kg |
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1 m/s2 to a mass of 1 kg/s2 |
Weight is a force that describes the attraction of gravity on an object. Force is measured in newtons (N) with 1 N being the force required to impart an acceleration of 1 m/s2 to a mass of 1 kg.
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic number |
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number of electron shells |
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atomic mass |
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atomic weight |
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.
An air mass is a large body of air that has which of the following characteristics?
similar density |
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similar temperature |
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all of these |
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similar moisture |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
During digestion, the kidneys filter substances from the blood. Which of the following is not filtered by the kidneys?
salt |
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water |
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fats |
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minerals |
Chemical waste like excess water, minerals, and salt are filtered from the blood by the kidneys and secreted into the urine. Urine is transported from the kidneys to the bladder through ureters.
Poor balance could indicate an issue with which part of the nervous system?
medulla |
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cerebellum |
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cerebrum |
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spinal cord |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.