ASVAB General Science Practice Test 408703 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

stratosphere, troposphere, mesosphere, thermosphere

troposphere, stratosphere, mesosphere, thermosphere

thermosphere, mesosphere, stratosphere, troposphere

mesosphere, thermosphere, stratosphere, troposphere
Solution

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

2

The connective tissue that connects bones to other bones at joints is called:

70% Answer Correctly

cartilage

ligaments

tendons

knuckles
Solution

Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).

3

Which of the following is not a vector quantity?

62% Answer Correctly

acceleration

mass

velocity

momentum
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:  \(\vec{v}\)

4

What part of the nervous system is responsible for controlling involuntary actions like breathing, swallowing, and heartbeat?

63% Answer Correctly

spinal cord

cerebellum

medulla

cerebrum
Solution

Part of the brainstem, the medulla is the connection between the brain and the spinal cord. It controls involuntary actions like breathing, swallowing, and heartbeat.

5

The ozone layer is in which of Earth's atmospheric layers?

66% Answer Correctly

troposphere

stratosphere

thermosphere

mesosphere
Solution

The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.