ASVAB General Science Practice Test 809583 Results

Your Results Global Average
Questions 5 5
Correct 0 3.20
Score 0% 64%

Review

1

Which is the proper order of Earth's atmospheric layers from the surface up to space?

58% Answer Correctly

troposphere, stratosphere, mesosphere, thermosphere

stratosphere, troposphere, mesosphere, thermosphere

mesosphere, thermosphere, stratosphere, troposphere

thermosphere, mesosphere, stratosphere, troposphere
Solution

The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.

2

Which of the following is not true of light waves?

62% Answer Correctly

travel faster than sound waves

are electromagnetic waves

are mechanical waves

can travel through a vacuum
Solution

Unlike mechanical sound waves that require a physical medium for propagation, light waves are electromagnetic and can travel through empty space. Light waves are also much faster, travelling at 186,000 m/s vs. 343 m/s for sound waves.

3

Earth's history is divided into time periods, which of these is the longest time period? 

67% Answer Correctly

era

eon

age

epoch
Solution

The Earth is approximately 4.6 billion years old and its history is divided into time periods based on the events that took place and the forms of life that were dominant during those periods. The largest graduation of time is the eon and each eon is subdivided into eras, eras into periods, periods into epochs, and epochs into ages.

4

In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:

86% Answer Correctly

scavengers

primary consumers

producers

decomposers
Solution

Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.

5

The angle of reflection is equal to which the following?

48% Answer Correctly

angle of incidence

refractive index

90°

focal point
Solution

The law of reflection specifies how waves, including light waves, bounce off of surfaces. Specifically, the angle of incidence of the approaching wave is equal to the angle of reflection of the reflected wave as measured from a line perpendicular (90°) to the surface.