| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
Which of the following does not represent the freezing point of water?
273K |
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0°C |
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32°F |
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0°F |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.
Scalar quantities are fully described by which of the following?
a direction only |
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a magnitude and a direction |
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a magnitude only |
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a magnitude and a polarity |
Velocity and displacement are vector quantities which means each is fully described by both a magnitude and a direction. In contrast, scalar quantities are quantities that are fully described by a magnitude only. A variable indicating a vector quantity will often be shown with an arrow symbol: \(\vec{v}\)
A large naturally occurring community of flora and fauna occupying a major habitat is:
a population |
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a food chain |
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a community |
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a biome |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Tough fibrous cords of connective tissue that connect muscles to the skeleton are called:
ligaments |
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cartilage |
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tendons |
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vertebra |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
What part of the brain is responsible for the major senses (thinking, hearing, seeing)?
medulla |
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cerebellum |
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cerebrum |
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brainstem |
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).