ASVAB General Science Practice Test 612728 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.05
Score	0%	61%

Review

Water has a refractive index of 1.33. Which of the following is true?

64% Answer Correctly

	light travels 1.33 times slower in a vacuum than it does in water
	light travels 1.33 times faster in a vacuum than it does in water
	light is 1.33 times brighter in a vacuum than it is in water
	light is 1.33 times dimmer in a vacuum than it is in water

Solution

The speed of light varies based on the material that the waves are passing through. The refractive index of a material indicates how easily light travels through it compared to how easily light travels through a vacuum. For example, the refractive index of water is 1.33, meaning that light travels 1.33 times faster in a vacuum than it does in water.

Which of the following is true about species groups?

46% Answer Correctly

	an ecosystem is a biological population
	a biome is a made up of a group of biospheres
	a population is made up of a group of communities
	a community is made up of a group of populations

Solution

A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.

Which of the following is not true about simple magnets?

62% Answer Correctly

	same poles repel each other
	opposite poles repel each other
	opposite poles attract each other
	all of these are untrue

Solution

Simple magnets have two poles, north and south, and opposite poles attract each other (N attracts S, S attracts N). Likewise, the same pole of two magnets repel (N repels N, S repels S). The Earth has a magnetic field and North and South Poles which enables the use of a magnetic compass to determine direction.

"An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." This describes which of Newton's laws of motion?

73% Answer Correctly

	first
	fourth
	second
	third

Solution

Also known as the law of inertia, Newton's first law of motion states that An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

In the metric system, what prefix represents 10³?

60% Answer Correctly

	centi
	mega
	kilo
	milli

Solution

Kilo is the metric system prefix for 10³.