Start learning →

CBSE Class 9 Is Matter Around Us Pure? — practice questions

Explore 50 free Is Matter Around Us Pure? questions in CBSE Class 9 Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Is Matter Around Us Pure? with Quill →

Is Matter Around Us Pure? questions and exercises with answers

Showing questions 1–30 of 50.

What is the air that we breathe?Read the answer and worked solution →In a sugar solution, sugar is the:Read the answer and worked solution →Solutions are which kind of mixture?Read the answer and worked solution →Mass by mass percentage tells grams of solute in:Read the answer and worked solution →Mass by volume percentage tells grams of solute in:Read the answer and worked solution →A car moves steadily at 90 km/h. What is this speed in m/s?Read the answer and worked solution →A cyclist covers 12 km in 30 minutes. What is the average speed in km/h?Read the answer and worked solution →A train runs 60 km at 30 km/h, then another 60 km at 60 km/h. What is its average speed for the whole trip?Read the answer and worked solution →A runner completes one full lap of a 400 m circular track in 80 s. What is the average velocity over the lap?Read the answer and worked solution →Which is the SI unit of acceleration?Read the answer and worked solution →A car starts from rest and accelerates at 2 m/s squared for 5 s. What speed does it reach?Read the answer and worked solution →A car at 20 m/s brakes at 4 m/s squared to a stop. What is the braking distance?Read the answer and worked solution →A ball is thrown straight up at 20 m/s. Taking g as 10 m/s squared, what maximum height does it reach?Read the answer and worked solution →A ball is thrown straight up at 20 m/s (g = 10 m/s squared). How long until it returns to the thrower's hand?Read the answer and worked solution →A stone is dropped from rest (g = 10 m/s squared). What is its speed after 3 s of free fall?Read the answer and worked solution →A stone dropped from a height of 80 m falls freely (g = 10 m/s squared). How long does it take to reach the ground?Read the answer and worked solution →A car goes round a bend at constant speed. Which statement is true?Read the answer and worked solution →Which describes acceleration correctly?Read the answer and worked solution →The area under an acceleration-time plot for a moving body gives which quantity?Read the answer and worked solution →A plot of distance against time for a body is a horizontal line. What does this tell us?Read the answer and worked solution →A plot of velocity against time is a horizontal line. What can be said about the motion?Read the answer and worked solution →Which quantity needs a direction to be stated completely?Read the answer and worked solution →A boy walks 3 m east, then 4 m north. What is the magnitude of his displacement?Read the answer and worked solution →A boy walks 6 m north, then 8 m east. What total distance has he travelled?Read the answer and worked solution →Which instrument in a car shows its instantaneous speed?Read the answer and worked solution →A car drives for 5 hours at an average speed of 60 km/h. What distance does it cover?Read the answer and worked solution →How long does a bus take to cover 150 km at a steady 50 km/h?Read the answer and worked solution →A jet flies at 680 m/s where sound travels at 340 m/s. What is its Mach number?Read the answer and worked solution →The speed of light in vacuum is closest to which value?Read the answer and worked solution →A car's speed reads 5, 10, 15 and 20 m/s at successive 1 s marks. What is its acceleration?Read the answer and worked solution →

Worked practice questions

What is the air that we breathe?

  1. A single pure gas
  2. A liquid solution
  3. A mixture of gases
  4. A solid compound
Show answer and solution

Correct answer: C. A mixture of gases

1. Gas particles are far apart, so gases mix into each other very easily. 2. Air is not one gas but several mixed together. 3. Nitrogen and oxygen are the two largest parts of that mixture. _Source: Siyavula Natural Sciences Grade 7 (CC BY 4.0), A mixture of a gas and a gas_

Open this question →

In a sugar solution, sugar is the:

  1. Colloid
  2. Residue
  3. Solute
  4. Solvent
Show answer and solution

Correct answer: C. Solute

1. A solution has one substance dissolved in another. 2. The substance that dissolves the other is the solvent. 3. Sugar is the solute and water is the solvent. 4. So the answer is the solute. _Source: syllabus Science, Ch 5 'Exploring Mixtures and their Separation'_

Open this question →

Solutions are which kind of mixture?

  1. Homogeneous
  2. Heterogene
  3. Suspension
  4. Precipitat
Show answer and solution

Correct answer: A. Homogeneous

1. A solution looks the same throughout. 2. Its solute is spread evenly through the solvent. 3. Solutions are homogeneous mixtures. 4. So the answer is homogeneous. _Source: syllabus Science, Ch 5 'Exploring Mixtures and their Separation'_

Open this question →

How to practise

  1. Choose a Is Matter Around Us Pure? question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Is Matter Around Us Pure? practice for CBSE Class 9. Read explanations as you go. No signup form needed to start.

Practise Is Matter Around Us Pure? →

More Science topics

Diversity in Living OrganismsThe Fundamental Unit of LifeForce and Laws of MotionTissues: Plant and Animal TissuesWork and EnergyMatter in Our SurroundingsMotionAtoms and Molecules