ASVAB General Science Practice Test 183492 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.26
Score	0%	65%

Review

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

67% Answer Correctly

	more
	equal numbers of
	fewer
	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.

Within DNA, a variety of a particular gene is called a(n):

55% Answer Correctly

	chromosome
	homozygous
	allele
	heterozygous

Solution

The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.

Changes to an object's speed or direction of motion are caused by which of the following?

72% Answer Correctly

	power
	kinetic energy
	work
	a force

Solution

Force is applied to change an object's speed or direction of motion.

Which of the following is not one of the outer planets?

72% Answer Correctly

	Neptune
	Uranus
	Venus
	Jupiter

Solution

In contrast to the solid terrestrial planets, the outer planets (Jupiter, Saturn, Uranus, and Neptune) consist of hydrogen and helium gas and water.

The crust and upper mantle of the earth is called the:

61% Answer Correctly

	geosphere
	lithosphere
	hydrosphere
	atmosphere

Solution

The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).