Matter in Our Surroundings Practice Questions
Class 9 · Science · 3300 free MCQs with instant results and detailed explanations.
3300
Total
1015
Easy
1620
Medium
665
Hard
Start Practicing Matter in Our Surroundings
Take a timed quiz or customize your practice session
Topics in Matter in Our Surroundings
Physical Nature of Matter
902
Evaporation
772
States of Matter
792
Change of State
834
Sample Questions from Matter in Our Surroundings
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the basic unit of matter?
A.
Atom
B.
Molecule
C.
Compound
D.
Element
Show Answer & Explanation
Correct Answer: A
An atom is the smallest unit of matter that retains the properties of an element.
Q2
Easy
Which of the following is NOT a state of matter?
A.
Solid
B.
Liquid
C.
Gas
D.
Plasma Wave
Show Answer & Explanation
Correct Answer: D
Plasma is a state of matter, but 'Plasma Wave' is not recognized as a state.
Q3
Easy
Which of the following describes a gas?
A.
Has a definite shape
B.
Has a definite volume
C.
Occupies the entire container
D.
Is incompressible
Show Answer & Explanation
Correct Answer: C
Gases do not have a definite shape and will expand to fill the entire container.
Q4
Medium
Which of the following correctly describes the arrangement of particles in a solid?
A.
Particles are closely packed and vibrate in fixed positions.
B.
Particles are loosely packed and can move freely.
C.
Particles are far apart and move randomly.
D.
Particles are in a liquid state, flowing past each other.
Show Answer & Explanation
Correct Answer: A
In solids, particles are tightly packed together and can only vibrate around fixed positions, giving them a definite shape and volume.
Q5
Medium
What property of matter allows a solid to maintain its shape?
A.
Density
B.
Elasticity
C.
Intermolecular forces
D.
Viscosity
Show Answer & Explanation
Correct Answer: C
The intermolecular forces in solids are strong, keeping the particles closely packed and maintaining the shape.
Q6
Medium
Which of the following is a characteristic of gases?
A.
They have a definite shape and volume.
B.
They are incompressible.
C.
They fill the entire volume of their container.
D.
They have a fixed particle arrangement.
Show Answer & Explanation
Correct Answer: C
Gases have no fixed shape or volume; they expand to fill the entire volume of their container due to the large distances between particles.
Q7
Medium
What happens to the kinetic energy of particles when a substance is heated?
A.
It decreases.
B.
It increases.
C.
It remains constant.
D.
It evaporates.
Show Answer & Explanation
Correct Answer: B
Heating a substance increases the kinetic energy of its particles, causing them to move more vigorously.
Q8
Hard
Which of the following statements correctly describes the behavior of gas molecules compared to those of solids and liquids?
A.
Gas molecules are tightly packed and vibrate in fixed positions.
B.
Gas molecules are loosely packed and move freely, filling the entire volume of their container.
C.
Gas molecules have strong intermolecular forces, preventing them from moving freely.
D.
Gas molecules are partially packed and have a definite shape like solids.
Show Answer & Explanation
Correct Answer: B
Gas molecules occupy the entire volume of their container and are far apart compared to solid and liquid molecules, allowing them to move freely.
Q9
Hard
Which of the following best describes the arrangement of particles in a solid?
A.
Particles are tightly packed and vibrate in fixed positions.
B.
Particles are loosely packed and move freely.
C.
Particles are far apart and move independently.
D.
Particles are arranged in a random pattern with occasional order.
Show Answer & Explanation
Correct Answer: A
In solids, particles are closely packed in a fixed arrangement and can only vibrate in place, leading to definite shape and volume.
Q10
Hard
What is the primary reason why gases can be compressed more easily than liquids?
A.
Gases have lower density than liquids.
B.
Gases have more energy than liquids.
C.
Gases have more space between particles than liquids.
D.
Gases are not affected by temperature changes.
Show Answer & Explanation
Correct Answer: C
Gases have large spaces between particles compared to liquids, allowing them to be compressed more easily.
Showing 10 of 3300 questions. Start a quiz to practice all questions with scoring and timer.
Practice All 3300 Questions →Other Class 9 Subjects
Matter in Our Surroundings — Class 9 Science Practice Questions Online
This page contains 3300 practice MCQs for the chapter Matter in Our Surroundings in Class 9 Science. The questions are organized by difficulty — 1015 easy, 1620 medium, 665 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.