Particle Theory Quiz #1

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| By Gina

Gina

Community Contributor

Quizzes Created: 1 | Total Attempts: 271

Questions: 7 | Attempts: 271 | Updated: Mar 20, 2023

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Particle theory for grades 7 and 8

Questions and Answers

1.

Everything is made of matter. Matter is made of...?
- A.
  
  Little circles
- B.
  
  Air
- C.
  
  Particles
- D.
  
  Solutes
Correct Answer
C. Particles

Explanation
Matter is made up of particles. This is because matter refers to anything that has mass and occupies space, and particles are the smallest units of matter. These particles can be atoms, molecules, or ions, depending on the type of matter. Therefore, the correct answer is particles.

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2.

Pure substances are substances that...
- A.
  
  Are made of only one type of particle
- B.
  
  Are made of 2 types of particle
- C.
  
  Are naturally occuring
- D.
  
  Are man-made
Correct Answer
A. Are made of only one type of particle

Explanation
Pure substances are substances that are made up of only one type of particle. This means that all the particles in a pure substance have the same chemical composition and properties. Examples of pure substances include elements, such as oxygen and gold, and compounds, such as water and salt. These substances are not mixed with any other substances and do not have any impurities. Therefore, the correct answer is "Are made of only one type of particle."

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3.

All the particles in a pure substance are...
- A.
  
  Identical
- B.
  
  Different
- C.
  
  Mostly the same
Correct Answer
A. Identical

Explanation
In a pure substance, all the particles are identical. This means that they have the same chemical composition and properties. Whether it is a solid, liquid, or gas, the particles in a pure substance are made up of the same type of atoms or molecules. This uniformity allows for consistent behavior and characteristics of the substance.

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4.

When you increase the temperature, particles will
- A.
  
  The speed of the particles stay the same
- B.
  
  The speed of the particles increase
- C.
  
  The speed of the particles decrease
Correct Answer
B. The speed of the particles increase

Explanation
When the temperature is increased, the kinetic energy of the particles also increases. This increase in kinetic energy leads to an increase in the speed of the particles. This is because the particles gain more energy and move faster, resulting in an overall increase in their speed.

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5.

Particles are...
- A.
  
  Moving only in liquids and gases
- B.
  
  Moving only in gases
- C.
  
  Moving in solids, and liquids
- D.
  
  Moving in solids, gases and liquids
Correct Answer
D. Moving in solids, gases and liquids

Explanation
Particles in ALL states of matter are constantly moving

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6.

There are spaces between...
- A.
  
  Particles in gases
- B.
  
  Particles in gases, liquids and solids
- C.
  
  Particles in gases, and liquids
Correct Answer
B. Particles in gases, liquids and solids

Explanation
The correct answer is "particles in gases, liquids and solids". This answer is correct because particles exist in all three states of matter: gases, liquids, and solids. In gases, particles are spread out and move freely. In liquids, particles are closer together and have more interaction. In solids, particles are tightly packed and vibrate in place. Therefore, particles can be found in all three states of matter.

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7.

Rank in order from smallest to largest, the spaces between the particles in the states of matter
- A.
  
  Gases, liquids, solids
- B.
  
  Liquids, solids, gases
- C.
  
  Solids, liquids, gases
- D.
  
  Solids, gases, liquids
Correct Answer
C. Solids, liquids, gases

Explanation
The answer is solids, liquids, gases. In solids, the particles are tightly packed together, resulting in the smallest spaces between them. In liquids, the particles have more freedom of movement but are still close together, so the spaces between them are larger than in solids but smaller than in gases. In gases, the particles are far apart and have the most freedom of movement, leading to the largest spaces between them.

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Current Version
Mar 20, 2023

Quiz Edited by
ProProfs Editorial Team
Dec 18, 2014

Quiz Created by
Gina

Particle Theory Quiz #1

Everything is made of matter. Matter is made of...?

Pure substances are substances that...

All the particles in a pure substance are...

When you increase the temperature, particles will

Particles are...

There are spaces between...

Rank in order from smallest to largest, the spaces between the particles in the states of matter