ASVAB General Science Practice Test 127376 Results

Your Results Global Average
Questions 5 5
Correct 0 3.00
Score 0% 60%

Review

1

What part of the nervous system controls simple reflexes?

54% Answer Correctly

autonomic

cerebrum

spinal cord

medulla
Solution

The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.

2

Which of the following is not a vector quantity?

62% Answer Correctly

velocity

mass

acceleration

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:  \(\vec{v}\)

3

Regulation of heart rhythm occurs in:

61% Answer Correctly

cerebellum

cerebrum

medulla

nerves
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.

4

The transfer of heat by the circulation or movement of the heated parts of a liquid or gas is called:

61% Answer Correctly

diffusion

conduction

radiation

convection
Solution

Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. Examples of heat transfer by convection include water coming to a boil on a stove, ice melting, and steam from a cup of coffee. 

5

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

63% Answer Correctly

cerebrum

medulla

spinal cord

cerebellum
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.