TEAS Practice Test: Video 4 Answers (25 Questions)

Question 1

What is the term for the energy stored in an object due to its position or configuration?

Accepted Answer

Potential energy

Answer

Potential energy is stored energy based on an object's position (gravitational PE), configuration (elastic PE), or chemical structure (chemical PE).

Question 2

Which state of matter has definite volume but no definite shape?

Accepted Answer

Liquid

Answer

A liquid has a definite volume but takes the shape of its container — it has no definite shape. Solids have both definite shape and volume; gases have neither.

Question 3

Which of the following best describes a physical change?

Accepted Answer

Water boiling and turning to steam

Answer

Water boiling is a physical change — the chemical composition (H₂O) does not change, only the physical state (liquid to gas).

Question 4

What does the atomic mass of an element primarily represent?

Accepted Answer

Protons plus neutrons

Answer

Atomic mass is approximately the sum of protons and neutrons in the nucleus.

Question 5

What is the atomic number of an element?

Accepted Answer

The number of protons in the nucleus of an atom

Answer

The atomic number (Z) is the number of protons in the nucleus, which uniquely identifies the element and determines its position on the periodic table.