ASVAB General Science Test 3

Question 1

What is the smallest unit of an element that retains the chemical properties of that element?

Accepted Answer

Atom

Answer

An atom is the smallest particle of an element that still has the chemical characteristics of that element.

Question 2

Which type of electromagnetic radiation has the shortest wavelength?

Accepted Answer

Gamma rays

Answer

Gamma rays have the shortest wavelengths and highest frequencies in the electromagnetic spectrum.

Question 3

What is the process by which water vapor cools and changes into liquid water called?

Accepted Answer

Condensation

Answer

Condensation occurs when water vapor loses heat energy and changes into liquid water droplets.

Question 4

Which blood type is considered the universal donor?

Accepted Answer

O negative

Answer

O negative blood can be given to patients of any blood type because it lacks A, B, and Rh antigens.

Question 5

What is the chemical formula for table salt (sodium chloride)?

Accepted Answer

NaCl

Answer

Sodium chloride (NaCl) is formed when one sodium atom bonds ionically with one chlorine atom.

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