TEAS Science: Chemistry and Physical Science 3 — Questions and Answers
Question 1: Which state of matter has a definite volume but no definite shape?
- Solid
- Liquid (Correct answer)
- Gas
- Plasma
Correct answer: Liquid
Liquids keep a fixed volume but take the shape of their container.
Question 2: What is the charge of an electron?
- Positive
- Negative (Correct answer)
- Neutral
- Variable
Correct answer: Negative
Electrons carry a negative electric charge.
Question 3: On the periodic table, elements in the same column share what?
- The same atomic mass
- Similar chemical properties (Correct answer)
- The same number of neutrons
- Identical melting points
Correct answer: Similar chemical properties
Elements in a group have similar valence electrons and chemical behavior.
Question 4: Which formula represents the speed of an object?
- Distance × time
- Distance ÷ time (Correct answer)
- Mass × acceleration
- Force ÷ area
Correct answer: Distance ÷ time
Speed equals distance divided by time.
Question 5: A solution with a pH of 3 is best described as what?
- Strongly basic
- Weakly basic
- Neutral
- Acidic (Correct answer)
Correct answer: Acidic
A pH below 7 indicates an acidic solution.
Question 6: What happens to gas particles when temperature increases at constant volume?
- They move slower
- They stop moving
- They move faster and pressure rises (Correct answer)
- They condense
Correct answer: They move faster and pressure rises
Higher temperature increases particle kinetic energy, raising pressure.
Question 7: Which term describes a substance made of two or more elements chemically combined?
- Mixture
- Compound (Correct answer)
- Element
- Solution
Correct answer: Compound
A compound consists of elements chemically bonded in fixed ratios.
TEAS Science: Chemistry and Physical Science 3
Which state of matter has a definite volume but no definite shape?