| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.60 |
| Score | 0% | 52% |
What part of the nervous system controls simple reflexes?
autonomic |
|
medulla |
|
spinal cord |
|
cerebrum |
The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
potential |
|
inherent |
|
gravitational |
|
kinetic |
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.
The dwarf planet Pluto is located where?
outside the solar system |
|
in the asteroid belt |
|
between the orbits of Jupiter and Saturn |
|
in the Kuiper Belt |
The Kuiper Belt is similar to the asteroid belt but much larger. Extending beyond the orbit of Neptune, it contains objects composed mostly of frozen methane, ammonia, and water. Most notably, the Kuiper Belt is home to Pluto, a dwarf planet that, until a 2006 reclassification, was considered the ninth planet of the solar system.
During the water cycle, water enters the atmosphere as a gas through which process?
both evaporation and transpiration |
|
evaporation |
|
precipitation |
|
transpiration |
The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.
Convert 5C° to F°.
41 |
|
27 |
|
37 |
|
-23 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(5) + 32\)
\(F° = {45 \over 5} + 32\)
\(F° = 9 + 32 = 41\)