ASVAB General Science Practice Test 806934 Results

Your Results Global Average
Questions 5 5
Correct 0 3.14
Score 0% 63%

Review

1

Which of the following describes the Earth's outer core?

45% Answer Correctly

solid

liquid

primarily solid

makes up most of the Earth's volume
Solution

The Earth's core is divided into the liquid outer core (1,430 miles or 2,300 km radius) and the solid inner core (745 miles or 1,200 km radius).

2

The first step in the water cycle is:

68% Answer Correctly

evaporation

reclamation

precipitation

infiltration
Solution

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.

3

The pitch of the siren of an approaching ambulance changes as it approaches you. This is an example of which of the following?

70% Answer Correctly

refraction

sound radiation

Doppler effect

reflection
Solution

The Doppler effect occurs when the source or listener (or both) of sound waves is moving. If they're moving closer together, the listener perceives the sound with a higher pitch and, when they're moving apart, the listener perceives the sound with a lower pitch.

4

The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?

66% Answer Correctly

inherent

potential

gravitational

kinetic
Solution

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.

5

pH is a scale that measures of how basic or acidic a solution is. A solution with a pH of 9 is:

67% Answer Correctly

alkaline

acidic

neutral

water
Solution

An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.