ASVAB General Science Practice Test 999478 Results

Your Results Global Average
Questions 5 5
Correct 0 3.25
Score 0% 65%

Review

1

Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.

67% Answer Correctly

equal numbers of

fewer

more

double the number of
Solution

An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.

2

Regulation of heart rhythm occurs in:

61% Answer Correctly

cerebrum

nerves

cerebellum

medulla
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.

3

Which of the following indicates the correct reproductive sequence?

64% Answer Correctly

zygote → ovum → fetus

ovum → zygote → fetus

none of these are correct

ovum → fetus → zygote
Solution

During intercourse, the penis ejaculates sperm, produced in the testes, into the vagina. Some of the sperm makes their way to the uterus where, if they encounter an egg to fertilize, unite with the ovum to form a fertilized egg or zygote. The zygote then may implant in the uterus and eventually develop into a fetus.

4

What part of the brain is responsible for for balance, movement, and muscle coordination?

70% Answer Correctly

cerebellum

cerebrum

brainstem

medulla
Solution

The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.

5

"The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object." This describes which of Newton's laws of motion?

64% Answer Correctly

fourth

third

second

first
Solution

Newton's second law of motion states that The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. This law basically means that the greater the mass of an object, the more force is needed to overcome its inertia.