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Sample Practice Test Questions

General Science

An electrically charged atom is a(n):

ion

A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.

General Science

Scavengers break down the dead bodies of plants and animals into which of the following?

simple nutrients

Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.

Word Knowledge
Fidelity most nearly means:
loyalty
State of being faithful.
Math Knowledge

Solve for x:
9x - 9 < \( \frac{x}{5} \)

x < 1\(\frac{1}{44}\)

To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.

9x - 9 < \( \frac{x}{5} \)
5 x (9x - 9) < x
(5 x 9x) + (5 x -9) < x
45x - 45 < x
45x - 45 - x < 0
45x - x < 45
44x < 45
x < \( \frac{45}{44} \)
x < 1\(\frac{1}{44}\)

Word Knowledge
The teacher suggested the combative student channel his aggression into boxing.
aggressive
Eager to fight.
Word Knowledge
Prune most nearly means:
trim
To reduce by removing excess.
General Science

During digestion, the kidneys filter substances from the blood. Which of the following is not filtered by the kidneys?

fats

Chemical waste like excess water, minerals, and salt are filtered from the blood by the kidneys and secreted into the urine. Urine is transported from the kidneys to the bladder through ureters.

General Science

Minerals, vitamins, and fiber are:

micronutrients

Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.

Math Knowledge
140

This diagram represents two parallel lines with a transversal. If x° = 140, what is the value of d°?

140

For parallel lines with a transversal, the following relationships apply:

  • angles in the same position on different parallel lines equal each other (a° = w°, b° = x°, c° = z°, d° = y°)
  • alternate interior angles are equal (a° = z°, b° = y°, c° = w°, d° = x°)
  • all acute angles (a° = c° = w° = z°) and all obtuse angles (b° = d° = x° = y°) equal each other
  • same-side interior angles are supplementary and add up to 180° (e.g. a° + d° = 180°, d° + c° = 180°)

Applying these relationships starting with x° = 140, the value of d° is 140.

Electronics Information

Which of the following will increase the magnetic field produced by the electric current in a wire?

wind the wire into a coil

A moving electric current produces a magnetic field proportional to the amount of current flow. This magnetic field can be made stronger by winding the wire into a coil and further enhanced if done around an iron containing (ferrous) core.