Pretest

Question 1

Julianna blows air into a balloon to inflate it. What can be known about the atoms of the air?

Revolt · Accepted Answer

B: They are moving constantly at high speeds.

Question 2

Which statement describes all solids?

Revolt · Accepted Answer

B: They have a definite shape and volume.

Question 3

Mercury’s natural state is where the atoms are close to each other but are still free to pass by each other. In which state(s) could mercury naturally exist?

Revolt · Accepted Answer

B: liquid

Question 4

Which statement best describes the atoms in a gas?

Revolt · Accepted Answer

A: They move freely in all directions.

Question 5

Which correctly lists the types of matter, in terms of their atoms, in order from least tightly packed to most tightly packed?

Revolt · Accepted Answer

D: gas, liquid, solid

Question 6

Which statement best describes the atoms in a solid?

Revolt · Accepted Answer

D: They are held together by strong attractions.

Question 7

Which best compares the phases of matter to marbles in a tray? An analogy makes a comparison between objects based on their similar qualities. Cassidy wanted to create an analogy for the motion of atoms in solids, liquids, and gases, so she compared them to marbles in a tray.

Revolt · Accepted Answer

D: A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

Question 8

Gerry is looking at salt under a powerful microscope and notices a crystalline structure. What can be known about the salt sample that Gerry is looking at?

Revolt · Accepted Answer

B: The atoms are vibrating in place.

Question 9

Density describes how much mass is contained in a certain volume. Knowing how far apart molecules are in each state, which best ranks solids, liquids, and gasses from least dense to most dense?

Revolt · Accepted Answer

D: Gasses are less dense than solids.

Question 10

Which statement best describes the atoms of the gas neon?

Revolt · Accepted Answer

D: They move freely in all directions.

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