ASVAB General Science Practice Test 411631 Results

Your Results Global Average
Questions 5 5
Correct 0 2.68
Score 0% 54%

Review

1

Which of the following is not true of light waves?

62% Answer Correctly

are mechanical waves

are electromagnetic waves

travel faster than sound 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.

2

In the metric system, what prefix represents 10-3?

62% Answer Correctly

kilo

milli

centi

mega
Solution

In the metric system, milli is the prefix for 10-3.

3

In which type of compound does one atom borrow an electron from another atom?

58% Answer Correctly

ionic

chemical

covalent

acidic
Solution

A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.

4

Neurons are part of the __________ nervous system.

42% Answer Correctly

somatic

central

peripheral

autonomic
Solution

The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.

5

In the food chain, omnivores may be which of the following?

45% Answer Correctly

secondary or tertiary consumers

secondary consumers or scavengers

primary or secondary consumers

primary or tertiary consumers
Solution

Secondary or tertiary consumers may be omnivores.