| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
Which of these is not a function of bone in the human skeletal system?
protect bodily organs |
|
store vitamins |
|
produce blood cells |
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store minerals |
Hard bones provide primary support for the endoskeleton while more flexible cartilage is found at the end of all bones, at the joints, and in the nose and ears. In addition to providing support and protecting bodily organs, bones also produce blood cells and store minerals like calcium.
Which of the following is the correct order for types of radiation from lowest to highest frequency?
microwaves → radio waves → visible light |
|
infrared waves → microwaves → ultraviolet light |
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radio waves → visible light → gamma rays |
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visible light → ultraviolet light → radio waves |
The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation. From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.
Poor balance could indicate an issue with which part of the nervous system?
cerebellum |
|
cerebrum |
|
spinal cord |
|
medulla |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
atom |
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electron |
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proton |
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neutron |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Which of the following is not true of light waves?
travel faster than sound waves |
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are mechanical waves |
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can travel through a vacuum |
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are electromagnetic waves |
Unlike mechanical sound waves that require a physical medium for propagation, light waves are electromagnetic and can travel through empty space. Light waves are also much faster, travelling at 186,000 m/s vs. 343 m/s for sound waves.