Science Quiz For Class 9

Reviewed by Daniel P
Daniel P, MSEd, Science |
Science Education
Review Board Member
With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.
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Science Quiz For Class 9 - Quiz

In this class, we covered matters and what it entails. The Science quiz for class 9 below includes questions ranging from easy, medium, and hard levels that will help you get conceptual clarity. Dive into the intriguing world of science with our thoughtfully curated Class 9 Science Quiz. Designed to spark curiosity and challenge young minds, this quiz encompasses a broad spectrum of scientific disciplines.

Each question serves as a gateway to understanding fundamental concepts and their practical applications. Tailored for Class 9 students, this quiz is a captivating blend of education and assessment. Test your knowledge, stimulate critical thinking, Read moreand unravel the mysteries that science holds.

With a focus on enriching learning experiences, this quiz is not just a test but a voyage through the captivating realms of scientific inquiry. Join us on this intellectual exploration, and let the quest for knowledge illuminate your scientific path. Give them a try and see how high you score. If you like this quiz, share it with your friends. All the best!


Science For Class 9 Questions and Answers

  • 1. 

    Distance is a ________________ quantity.

    • A.

      Scalar

    • B.

      Vector

    Correct Answer
    A. Scalar
    Explanation
    Distance is a scalar quantity because it only has magnitude and no directional component. Scalars are quantities that can be completely described by their magnitude alone, such as temperature or mass. In contrast, vectors have both magnitude and direction, like velocity or displacement. Since distance is simply the length between two points, it does not have a specific direction associated with it, making it a scalar quantity.

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  • 2. 

    Displacement is a ________________ quantity.

    • A.

      Vector

    • B.

      Scalar

    Correct Answer
    A. Vector
    Explanation
    Displacement is a vector quantity because it has both magnitude and direction. It represents the change in position of an object from its initial position to its final position. Magnitude refers to the length or size of the displacement, while direction indicates the path or angle of the displacement. Scalars, on the other hand, only have magnitude and no direction.

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  • 3. 

    Speed is a ________________ quantity.

    • A.

      Vector

    • B.

      Scaler

    Correct Answer
    B. Scaler
    Explanation
    Speed is a scalar quantity because it only has magnitude and no direction. Scalar quantities are described by a single value, such as speed, temperature, or mass, without any information about the direction in which they occur. In contrast, vector quantities have both magnitude and direction, like velocity or force. Since speed only represents the magnitude of motion without specifying a direction, it is considered a scalar quantity.

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  • 4. 

    Displacement can be 0. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement "Displacement = 0" is true because displacement is a vector quantity that measures the change in position of an object from its initial position to its final position. When the displacement is zero, it means that the object has not moved or has returned to its original position. 

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  • 5. 

    If a body covers a full circle, then the displacement is:

    • A.

      1

    • B.

      0

    • C.

      Distance

    • D.

      Not sufficient data

    Correct Answer
    B. 0
    Explanation
    If a body covers a full circle, it means that it returns to its original position. Displacement refers to the change in position from the initial to the final position. In this case, since the body ends up at the same position where it started, there is no change in position and therefore the displacement is zero.

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  • 6. 

    Ice is: 

    • A.

      Solid

    • B.

      Liquid

    • C.

      Gas

    • D.

      Plasma

    Correct Answer
    A. Solid
    Explanation
    Ice is a solid because it is the frozen form of water. At temperatures below zero degrees Celsius, water molecules slow down and form a rigid, crystalline structure, resulting in the solid state of ice. In this state, the molecules are closely packed together and have a fixed shape and volume.

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  • 7. 

    Plasma consists _________ particles.

    • A.

      Energetic/excited

    • B.

      Dull

    • C.

      Tightly packed

    • D.

      Loosely packed

    Correct Answer
    A. Energetic/excited
    Explanation
    Plasma consists of energetic/excited particles. Plasma is the fourth state of matter, in which atoms are ionized, and their electrons are free to move. These free electrons gain energy and become excited, leading to the presence of highly energetic particles in plasma.

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  • 8. 

    What is the latent heat of fusion of ice?

    Correct Answer
    336 kJ/kg, 33600 J/kg
    Explanation
    The latent heat of fusion of ice is the amount of heat energy required to convert a unit mass of ice at its melting point into water at the same temperature, without any change in temperature. In this case, the correct answer is 333.55 kJ/kg, which means that 333.55 kilojoules of heat energy are needed to convert 1 kilogram of ice into water at its melting point.

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  • 9. 

    ER helps in detoxification:

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    ER stands for endoplasmic reticulum, which is an organelle found in cells. The endoplasmic reticulum plays a crucial role in detoxification processes within the cell. It is responsible for the synthesis and modification of lipids and proteins, as well as the detoxification and metabolism of drugs and toxins. 

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  • 10. 

    Golgi apparatus helps in cell division.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The Golgi apparatus does not aid in cell division. The Golgi apparatus is primarily involved in the processing, packaging, and distribution of proteins and lipids within the cell. It plays a crucial role in the secretion of these molecules to their appropriate destinations. However, cell division is primarily controlled by other organelles, such as the nucleus, centrosomes, and the spindle apparatus. These organelles are responsible for processes such as DNA replication, chromosome segregation, and cytokinesis, which are essential for cell division. 

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  • 11. 

    Ribosomes make __________.

    • A.

      Lipids

    • B.

      Fats

    • C.

      Proteins

    • D.

      Starch

    Correct Answer
    C. Proteins
    Explanation
    Ribosomes are responsible for protein synthesis. They are small organelles found in cells that read the genetic code from the DNA and use it to assemble amino acids into proteins. Proteins are essential for various cellular functions, including cell structure, enzymes, and signaling molecules.

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  • 12. 

    SER involves Storage. 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement that SER involves storage is false. SER stands for Single Event Upset, which refers to the phenomenon where a single particle or energy pulse can cause a temporary change in the state of a storage element, such as a flip-flop or memory cell, leading to an error in the stored data. However, SER itself does not involve storage directly, but rather the susceptibility of storage elements to external disturbances.

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Daniel P |MSEd, Science |
Science Education
With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.
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