| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
Which of the following is not true about simple magnets?
all of these are untrue |
|
opposite poles attract each other |
|
opposite poles repel each other |
|
same poles repel each other |
Simple magnets have two poles, north and south, and opposite poles attract each other (N attracts S, S attracts N). Likewise, the same pole of two magnets repel (N repels N, S repels S). The Earth has a magnetic field and North and South Poles which enables the use of a magnetic compass to determine direction.
The energy posessed by a thrown baseball is an example of what kind of energy?
kinetic |
|
transitional |
|
potential |
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gravitational |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
What part of the brain is responsible for the major senses (thinking, hearing, seeing)?
cerebrum |
|
brainstem |
|
cerebellum |
|
medulla |
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).
DNA is encoded through a combination of which of the following?
nucleotides |
|
helix |
|
genes |
|
gametes |
Deoxyribonucleic acid (DNA) is the molecule that contains genetic information. DNA is encoded through a combination of nucleotides that bind together in a specific double helix pattern.
As part of digestion, the liver produces bile which breaks down:
sugars |
|
starches |
|
fat |
|
protein |
The liver produces bile which emulsifies (separates) fat.