ASVAB General Science Practice Test 472718 Results

Your Results Global Average
Questions 5 5
Correct 0 3.40
Score 0% 68%

Review

1

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

decomposers

scavengers

producers

primary consumers
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.

2

The gravitational interaction of Earth and the Moon is responsible for which of these?

77% Answer Correctly

day and night cycle

the northern lights

tides

seasons
Solution

Tides are caused by the gravitational interaction of Earth and the Moon.

3

Which of the following describes the Earth's mantle?

55% Answer Correctly

primarily liquid

primarily solid

solid

liquid
Solution

Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.

4

Acceleration is the rate of change of velocity per unit of time. Which of these is the formula for acceleration?

59% Answer Correctly

\(\vec{a} = { t \over \Delta \vec{v} }\)

\(\vec{a} = { \Delta \vec{v} \over t }\)

\(\vec{a} = \Delta \vec{v} t \)

\(\vec{a} = { \vec{v} \over t }\)
Solution

Acceleration is the rate of change of velocity per unit of time. In physics, the delta symbol (\(\Delta\)) represents change so the formula for acceleration becomes  \(\vec{a} = { \Delta \vec{v} \over t }\)

5

Which of the following is not true about simple magnets?

63% Answer Correctly

all of these are untrue

same poles repel each other

opposite poles repel each other

opposite poles attract each other
Solution

Simple magnets have two poles, north and south, and opposite poles attract each other (N attracts S, S attracts N). Likewise, the same pole of two magnets repel (N repels N, S repels S). The Earth has a magnetic field and North and South Poles which enables the use of a magnetic compass to determine direction.