| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
What part of the brain is responsible for the major senses (thinking, hearing, seeing)?
cerebrum |
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cerebellum |
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brainstem |
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medulla |
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).
Which of the following is the formula for work?
\(W = \vec{F}\vec{d}\) |
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\(W = {\vec{F} \over \vec{d} }\) |
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\(W = {{F}\over{d}}\) |
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\(W = {F}{d}\) |
Work is performed on an object when an applied force causes displacement along the same vector. Measured in joules (J) or newton-meter (Nm), work is calculated by multiplying force times displacement: \(W = \vec{F}\vec{d}\)
The energy posessed by a thrown baseball is an example of what kind of energy?
kinetic |
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gravitational |
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transitional |
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potential |
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.
Cellular fermentation takes place:
anaerobically |
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in plant cells |
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in the presence of oxygen |
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aerobically |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
Which of the following describes the Earth's mantle?
makes up most of Earth's volume |
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hot |
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dense |
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all of these |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.