ASVAB General Science Practice Test 983829 Results

Your Results Global Average
Questions 5 5
Correct 0 2.93
Score 0% 59%

Review

1

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

58% Answer Correctly

stratosphere, troposphere, mesosphere, thermosphere

troposphere, stratosphere, 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

Molecules and atoms that are outputs from a chemical reaction are known as which of the following?

56% Answer Correctly

results

reactants

side effects

products
Solution

During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).

3

An electrically charged atom is a(n):

49% Answer Correctly

neutron

ion

electron

proton
Solution

A compound is a substance containing two or more different chemical elements bound together by a chemical bond. 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

Velocity and displacement are fully described by both a magnitude and a direction.  Velocity and displacement are which of the following?

70% Answer Correctly

vector quantities

combinational quantities

composite quantities

scalar quantities
Solution

Velocity and displacement are vector quantities which means each is fully described by both a magnitude and a direction.  In contrast, scalar quantities are quantities that are fully described by a magnitude only.  A variable indicating a vector quantity will often be shown with an arrow symbol:  \(\vec{v}\)

5

Blood pressure is generally highest in which of the following?

61% Answer Correctly

arteries

heart

capillaries

veins
Solution

Arteries are thick-walled because they carry oxygenated blood at high pressure, veins are comparatively thin-walled as they carry low-pressure deoxygenated blood.