ASVAB General Science Practice Test 287549 Results

Your Results Global Average
Questions 5 5
Correct 0 3.20
Score 0% 64%

Review

1

Poor balance could indicate an issue with which part of the nervous system?

64% Answer Correctly

cerebellum

medulla

cerebrum

spinal cord
Solution

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

2

A subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. This desribes which of the following?

74% Answer Correctly

proton

electron

isotope

neutron
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.

3

Molecules and atoms that are outputs from a chemical reaction are known as which of the following?

56% Answer Correctly

side effects

reactants

results

products
Solution

During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).

4

Which of these layers is found directly below the Earth's crust?

71% Answer Correctly

outer core

mantle

continents

inner core
Solution

The crust is the Earth's outermost layer and is divided into oceanic and continental types. Oceanic crust is 3 miles (5 km) to 6 miles (10 km) thick and is composed primarily of denser rock. Continental crust is 20 to 30 miles (30 to 50 km) thick and composed primarily of less dense rock. The crust makes up approximately one percent of the Earth's total volume.

5

Which of the following would be used in eye glasses to correct nearsightedness?

56% Answer Correctly

concave mirror

convex lens

concave lens

convex mirror
Solution

Unlike curved mirrors that operate on the principle of reflection, lenses utilize refraction. A convex lens is thicker in the middle than on the edges and converges light while a concave lens is thicker on the edges than in the middle and diffuses light. A common use for curved lenses is in eye glasses where a convex lens is used to correct farsightedness and a concave lens is used to correct nearsightedness.