| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
large intestine |
|
stomach |
|
small intestine |
|
mouth |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
50°F is how many °C?
10 |
|
58 |
|
122 |
|
-10 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (50 - 32)\)
\(C° = {5 \over 9} (18)\)
\(C° = {90 \over 9}\)
\(C° = 10\)
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
gravitational |
|
potential |
|
inherent |
|
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.
Earth's breathable air is held in which atmospheric layer?
thermosphere |
|
mesosphere |
|
troposphere |
|
stratosphere |
The Earth's atmosphere has several layers starting with the troposphere which is closest in proximity to the surface. Containing most of the Earth's breathable air (oxygen and nitrogen), it's a region with warmer temperatures closer to the surface and cooler temperatures farther away which results in the rising and falling air that generates weather.
"For every action, there is an equal and opposite reaction." This describes which of Newton's laws of motion?
first |
|
fourth |
|
second |
|
third |
Newton's third law of motion states that For every action, there is an equal and opposite reaction. When an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction on the first object.