ASVAB General Science Practice Test 129337 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.83
Score	0%	57%

Review

Which of the following is igneous rock?

69% Answer Correctly

	sandstone
	shale
	granite
	marble

Solution

The Earth's rocks fall into three categories based on how they're formed. Igneous rock (granite, basalt, obsidian) is formed from the hardening of molten rock (lava), sedimentary rock (shale, sandstone, coal) is formed by the gradual despositing and cementing of rock and other debris, and metamorphic rock (marble, slate, quartzite) which is formed when existing rock is altered though pressure, temperature, or chemical processes.

The formula for acceleration is which of the following?

56% Answer Correctly

	\(\vec{a} = { \vec{F} \over m }\)
	\(\vec{a} = \vec{F} m\)
	\(\vec{a} = { m \over F }\)
	\(\vec{a} = { m \over \vec{F} }\)

Solution

Newton's second law of motion leads to the formula for acceleration which is a measure of the rate of change of velocity per unit time and, if you solve for positive acceleration, reveals how much net force is needed to overcome an object's mass. The formula for acceleration is \(\vec{a} = { \vec{F} \over m }\) or, solving for force, \(\vec{F} = m\vec{a}\).

Meteoroids, meteors and meteorites are categorized based on which of the following?

45% Answer Correctly

	their density
	their size
	their temperature
	their location

Solution

Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.

Which of the following represents the largest value?

61% Answer Correctly

	1 ML
	1 cL
	1 kL
	1 mL

Solution

Mega (M) is 10⁶, kilo (k) is 10³, centi (c) is 10^-2, milli (m) is 10^-3 so 1 ML represents the largest value.

Which of the following is metamorphic rock?

52% Answer Correctly

	coal
	granite
	marble
	obsidian