NeSA NeSA Science 2

Question 1

According to Newton's First Law of Motion, what will a moving object do if no unbalanced force acts upon it?

Accepted Answer

Continue moving in a straight line at constant speed

Answer

Newton's First Law (the law of inertia) states that an object in motion stays in motion at the same speed and direction unless acted upon by an unbalanced (net) force.

Question 2

Which process in the water cycle describes liquid water changing into water vapor due to heat energy?

Accepted Answer

Evaporation

Answer

Evaporation occurs when liquid water absorbs enough heat energy to change into water vapor and enter the atmosphere, driving the water cycle.

Question 3

What is the difference between a physical change and a chemical change in matter?

Accepted Answer

Physical changes change only the form or appearance; chemical changes produce a new substance

Answer

A physical change (like cutting paper or melting ice) alters only shape or state without changing chemical composition, while a chemical change (like burning wood) produces new substances with different properties.

Question 4

Which term describes the passing of traits from parent organisms to their offspring through genes?

Accepted Answer

Heredity

Answer

Heredity is the biological process by which genetic information (traits) is passed from parents to offspring through DNA contained in genes.

Question 5

On the pH scale, a substance with a pH of 2 is best described as which of the following?

Accepted Answer

Strongly acidic

Answer

The pH scale runs from 0 to 14; values below 7 are acidic, 7 is neutral, and above 7 are basic. A pH of 2 is near the acidic extreme, making it strongly acidic.

NeSA - Nebraska State Accountability Practice Test

NeSA - Nebraska State Accountability Practice Test

NeSA NeSA Science 2