
Conceptual understanding of all the topics is the most important part of preparation for an examination. CBSE Curriculum based Objective Questions from Class-VI to XII provide an excellent option to test your basic concepts.
The following Quiz consists of questions from NCERT Class IX Science. Aspirants may practice these questions to have a revision of the fundamental concepts of the subject.
Quiz-summary
0 of 33 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
Information
Please fill your name and email id to start the Quiz.
You must specify a text. | |
You must specify an email address. |
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 33 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Categories
- Not categorized 0%
- NCERT 0%
Well done! Keep practicing.
To see yourself in the leader board, click on ‘Send’ then ‘Show leaderboard’.
| Pos. | Name | Entered on | Points | Result |
|---|---|---|---|---|
| Table is loading | ||||
| No data available | ||||
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- Answered
- Review
- Question 1 of 33
1. Question
Category: NCERTWhich of the following statements are correct?
1. Physical state of a substance can be changed by changing its temperature
2. Physical state of a substance can be changed by changing pressureCorrectWhen thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
When the pressure exerted on a substance increases, it can cause the substance to condense. Decreasing pressure can cause it to vaporize.
IncorrectWhen thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
When the pressure exerted on a substance increases, it can cause the substance to condense. Decreasing pressure can cause it to vaporize.
- Question 2 of 33
2. Question
Category: NCERTWhich one of the following statements is correct?
1. In solids, molecules are tightly packed.
2. Force of attraction between molecules in solids is very weakCorrectIn the solid-state, the individual particles of a substance are in fixed positions with respect to each other because there is not enough thermal energy to overcome the intermolecular interactions between the particles. As a result, solids have a definite shape and volume and molecules are most tightly packed in solids
IncorrectIn the solid-state, the individual particles of a substance are in fixed positions with respect to each other because there is not enough thermal energy to overcome the intermolecular interactions between the particles. As a result, solids have a definite shape and volume and molecules are most tightly packed in solids
- Question 3 of 33
3. Question
Category: NCERTWhich of the following will show the Tyndall effect?
CorrectThe Tyndall effect is the phenomenon in which the particles in a colloid scatter the beams of light that are directed at them. This effect is exhibited by all colloidal solutions and some very fine suspensions.
Tyndall effect is exhibited by only milk from the above-mentioned list of solutions.Incorrect - Question 4 of 33
4. Question
Category: NCERTConsider the following:
1. Lysosomes are a kind of waste disposal system of the cell.
2. Mitochondria have their own DNA and ribosomes.CorrectLysosomes help to keep the cell clean by digesting any foreign material as well as worn-out cell organelles. Lysosomes are able to do this because they contain powerful digestive enzymes capable of breaking down all organic material.
Mitochondria are strange organelles in the sense that they have their own DNA and ribosomes. Therefore, mitochondria are able to make some of their own proteins.Incorrect - Question 5 of 33
5. Question
Category: NCERTConsider the following statements:
1. Stomata bring about the exchange of gases and transpiration.
2. Plastids impart green color to the plants.CorrectStomata are the tiny pores present on the outer layer of the cells, the epidermis. Stomata bring about the exchange of gases and transpiration.
Plastids are present only in plant cells. There are two types of plastids – chloroplasts (coloured plastids) and leucoplasts (white or colourless plastids). Plastids containing the pigment chlorophyll are known as chloroplasts.IncorrectStomata are the tiny pores present on the outer layer of the cells, the epidermis. Stomata bring about the exchange of gases and transpiration.
Plastids are present only in plant cells. There are two types of plastids – chloroplasts (coloured plastids) and leucoplasts (white or colourless plastids). Plastids containing the pigment chlorophyll are known as chloroplasts. - Question 6 of 33
6. Question
Category: NCERTConsider the following statements:
1. Tyndall effect can be observed when sunlight passes through the canopy of a dense forest or when a fine beam of light enters a room through a small hole.
2. Under the Tyndall effect, the longer wavelengths are more transmitted while the shorter wavelengths are more diffusely reflected via scattering.CorrectThe small sized colloidal particles in air can easily scatter a beam of visible light. This scattering of a beam of light is called the Tyndall effect. Under the Tyndall effect, the longer wavelengths are more transmitted while the shorter wavelengths are more diffusely reflected via scattering.
IncorrectThe small sized colloidal particles in air can easily scatter a beam of visible light. This scattering of a beam of light is called the Tyndall effect. Under the Tyndall effect, the longer wavelengths are more transmitted while the shorter wavelengths are more diffusely reflected via scattering.
- Question 7 of 33
7. Question
Category: NCERTClassify which one of these are aerosols?
1. Fog
2. Automobile exhaust smoke
3. CloudsCorrect1, 2 and 3
Incorrect1, 2 and 3
- Question 8 of 33
8. Question
Category: NCERTConsider the following statements:
1. In a planetary orbit, the line joining the planet and the Sun sweep equal areas in equal intervals of time.
2. The mean distance of a planet from the Sun is inversely proportional to its orbital period.CorrectThese are explained by Kepler’s laws.
IncorrectThese are explained by Kepler’s laws.
- Question 9 of 33
9. Question
Category: NCERTWhich of the following are classified as micronutrients for plants?
1. Iron
2. Potassium
3. Sulphur
4. CopperCorrectMicronutrients are essential elements that are used by plants in small quantities.
There are 16 elements essential to growth of crop plants:
Supplied by air and water (03): carbon, hydrogen, oxygen
Macronutrients (03): nitrogen, phosphorous, potassium
Secondary Nutrients (03): calcium, magnesium, sulphur
Micronutrients (07): boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), Molybdenum (Mo), and zinc (Zn).
IncorrectMicronutrients are essential elements that are used by plants in small quantities.
There are 16 elements essential to growth of crop plants:
Supplied by air and water (03): carbon, hydrogen, oxygen
Macronutrients (03): nitrogen, phosphorous, potassium
Secondary Nutrients (03): calcium, magnesium, sulphur
Micronutrients (07): boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), Molybdenum (Mo), and zinc (Zn).
- Question 10 of 33
10. Question
Category: NCERTConsider the following statements:
1. A wave is a disturbance that moves through a medium when the particles of the medium set neighbouring particles into motion.
2. While transverse sound waves cannot travel without any medium, longitudinal sound waves do not require a medium to travel.CorrectSound waves are characterised by the motion of particles in the medium and are called mechanical waves. Air is the most common medium through which sound travels. When a vibrating object moves forward, it pushes and compresses the air in front of it creating a region of high pressure.
IncorrectSound waves are characterised by the motion of particles in the medium and are called mechanical waves. Air is the most common medium through which sound travels. When a vibrating object moves forward, it pushes and compresses the air in front of it creating a region of high pressure.
- Question 11 of 33
11. Question
Category: NCERTConsider the following statements:
1. Force of gravitation on a body is equal to the true weight of the body.
2. A person standing in an elevator moving downward with constant acceleration finds his weight less than equal.CorrectThe gravitational pull exerted by the earth on a body is called its true weight and it is equal to mg (where m is mass of the body and g is the acceleration due to gravity) if the body is not accelerating.
IncorrectThe gravitational pull exerted by the earth on a body is called its true weight and it is equal to mg (where m is mass of the body and g is the acceleration due to gravity) if the body is not accelerating.
- Question 12 of 33
12. Question
Category: NCERTA ball is rolling down a slope at a steady speed. Which of the following statements is correct?
CorrectThe forces acting on the ball are balanced. Shen resultant force is balanced or zero then object moves in steady state. Since speed is steady, there is no acceleration.
IncorrectThe forces acting on the ball are balanced. Shen resultant force is balanced or zero then object moves in steady state. Since speed is steady, there is no acceleration.
- Question 13 of 33
13. Question
Category: NCERTWhich of the following actions is/are coordinated by the human brain?
1. Maintaining blood pressure
2. Regulating the heartbeat
3. Balancing the bodyCorrectThe brain receives information through our five senses: sight, smell, touch, taste, and hearing and thereby controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body.
IncorrectThe brain receives information through our five senses: sight, smell, touch, taste, and hearing and thereby controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body.
- Question 14 of 33
14. Question
Category: NCERTConsider the following statements regarding the speed of sound in different mediums:
1. Among solids, liquids and gases, sound travels fastest in the gaseous state.
2. Sound travels faster in hot air than in cold air.CorrectThe closer the molecules are to each other and the tighter their bonds, the less time it takes for them to pass the sound to each other and the faster sound can travel. It is easier for sound waves to go through solids than through liquid.
IncorrectThe closer the molecules are to each other and the tighter their bonds, the less time it takes for them to pass the sound to each other and the faster sound can travel. It is easier for sound waves to go through solids than through liquid.
- Question 15 of 33
15. Question
Category: NCERTWhich among the following is known as the powerhouse of the cell and has its own DNA and ribosomes?
CorrectMitochondria are known as the powerhouses of the cell. Mitochondria are strange organelles in the sense that they have their own DNA and ribosomes. Therefore, mitochondria are able to make some of their own proteins.
IncorrectMitochondria are known as the powerhouses of the cell. Mitochondria are strange organelles in the sense that they have their own DNA and ribosomes. Therefore, mitochondria are able to make some of their own proteins.
- Question 16 of 33
16. Question
Category: NCERTA body is falling freely under gravity alone in a vacuum. Which one of the following is correct?
CorrectAt the start, the potential energy is mgh and kinetic energy is zero. It is zero because its velocity is zero. The total energy of the object is thus mgh. As it falls, its potential energy will change into kinetic energy.
IncorrectAt the start, the potential energy is mgh and kinetic energy is zero. It is zero because its velocity is zero. The total energy of the object is thus mgh. As it falls, its potential energy will change into kinetic energy.
- Question 17 of 33
17. Question
Category: NCERTConsider the following pairs:
1. Isotopes : Equal atomic number
2. Isobars : Equal mass number
3. Isotones : Equal number of neutronsCorrect1, 2 and 3
Incorrect1, 2 and 3
- Question 18 of 33
18. Question
Category: NCERTArrange the following mediums in increasing order of speed of sound at 25°C:
1. Steel
2. Water
3. AirCorrectGenerally, the speed of sound decreases when we go from solid to gaseous state. Therefore the speed of sound in steel is greater in steel than in methanol and greater in Methanol than in air.
IncorrectGenerally, the speed of sound decreases when we go from solid to gaseous state. Therefore the speed of sound in steel is greater in steel than in methanol and greater in Methanol than in air.
- Question 19 of 33
19. Question
Category: NCERTWhich of the following statements is/are correct regarding sound waves?
1. Sound waves cannot travel through a vacuum.
2. The particles oscillate up and down about their mean position as the wave travels.
3. In a given medium under same conditions, the speed of sound changes drastically with frequency.CorrectThe speed of sound remains almost the same for all frequencies in a given medium under the same physical conditions.
IncorrectThe speed of sound remains almost the same for all frequencies in a given medium under the same physical conditions.
- Question 20 of 33
20. Question
Category: NCERTWhich of the following pairs are correctly matched?
Micro-organism : Food Process
1. Bacteria : Curdling of Milk
2. Yeast : Bread leavening
3. Fungi : Citric Acid productionCorrectCitric acid is the principal organic acid found in citrus fruits. To meet increasing demands it is produced from carbohydrate feedstock by fermentation with the fungus Aspergillus niger and the yeasts of Candida.
IncorrectCitric acid is the principal organic acid found in citrus fruits. To meet increasing demands it is produced from carbohydrate feedstock by fermentation with the fungus Aspergillus niger and the yeasts of Candida.
- Question 21 of 33
21. Question
Category: NCERTWhich of the following diseases are caused by protozoans?
1. Measles
2. Malaria
3. DiphtheriaCorrect2 only
Incorrect2 only
- Question 22 of 33
22. Question
Category: NCERTWhich of the following are functions of blood?
1. Supply of carbon dioxide to living cells
2. Transportation of hormones to body parts
3. Supply of water to body partsCorrect1 and 2 only
Incorrect1 and 2 only
- Question 23 of 33
23. Question
Category: NCERTWith reference to the transport of nutrients in plants, consider the following statements:
1. Xylem transports water-dissolved minerals unidirectionally from roots to stems.
2. Phloem transports organic and mineral nutrients bidirectionally between roots and stems.CorrectBoth 1 and 2
IncorrectBoth 1 and 2
- Question 24 of 33
24. Question
Category: NCERTThe human voices are more clearly heard at dusk rather than during day time because of the phenomenon of:
CorrectAt the dusk, a wave diverging upwards form a source on or near the surface is refracted continuously away from normal. Now, it is totally reflected and it begins to travel downwards with continuous refraction to reach the observer.
IncorrectAt the dusk, a wave diverging upwards form a source on or near the surface is refracted continuously away from normal. Now, it is totally reflected and it begins to travel downwards with continuous refraction to reach the observer.
- Question 25 of 33
25. Question
Category: NCERTWhich phenomenon explains the fact that we see lightning much before we hear its thunder?
CorrectLight waves are many times faster than sound waves. Hence, when there is lightning, the light waves reach us faster than the sound waves.
IncorrectLight waves are many times faster than sound waves. Hence, when there is lightning, the light waves reach us faster than the sound waves.
- Question 26 of 33
26. Question
Category: NCERTThe atmosphere of the earth is heated by radiations which are mainly:
CorrectEarth absorb radiation from sun, and then try to transmit it back to atmosphere, but atmosphere absorb very selective gas as a result of which the gas radiated get back to earth resulting in increase in temperature.
IncorrectEarth absorb radiation from sun, and then try to transmit it back to atmosphere, but atmosphere absorb very selective gas as a result of which the gas radiated get back to earth resulting in increase in temperature.
- Question 27 of 33
27. Question
Category: NCERTConsider the following statements:
1. The upward force acting on an object immersed in the liquid is called buoyant force.
2. Gravitational force affects buoyant force.CorrectThe buoyant force on an object is a result of the gravitational force acting on the surroundings of that object. It is most evident when the object itself is less dense than the surrounding medium.
IncorrectThe buoyant force on an object is a result of the gravitational force acting on the surroundings of that object. It is most evident when the object itself is less dense than the surrounding medium.
- Question 28 of 33
28. Question
Category: NCERTWhich of the following will require least force to penetrate the piece of wood?
CorrectIt is easier to hammer a sharp nail than a blunt one into the wood. This is because blunt nail occupies more area than sharped nail. As pressure exerted it inversely proportional to area lesser the area, the pressure will be more. So the sharp will exert more pressure as it occupies less area.
IncorrectIt is easier to hammer a sharp nail than a blunt one into the wood. This is because blunt nail occupies more area than sharped nail. As pressure exerted it inversely proportional to area lesser the area, the pressure will be more. So the sharp will exert more pressure as it occupies less area.
- Question 29 of 33
29. Question
Category: NCERTLaw of gravitation gives the gravitational force between:
CorrectEvery object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them. The force is along the line joining the centres of two objects.
IncorrectEvery object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them. The force is along the line joining the centres of two objects.
- Question 30 of 33
30. Question
Category: NCERTWhich of the following statements is NOT correct?
1. The velocity of sound in air decreases as humidity increases.
2. The velocity of sound in air is independent of pressure.
3. The velocity of sound in air increases with temperature.CorrectThe velocity of sound in air increases as the humidity increases. The density of water vapour is less than dry air.
IncorrectThe velocity of sound in air increases as the humidity increases. The density of water vapour is less than dry air.
- Question 31 of 33
31. Question
Category: NCERTWhich of the following is correct about Newton’s Third Law of Motion?
CorrectEvery action has an equal and opposite reaction.
IncorrectEvery action has an equal and opposite reaction.
- Question 32 of 33
32. Question
Category: NCERTWhich of the following is correct about inertia?
CorrectIt is the tendency of a body to resist change in its state of motion.
IncorrectIt is the tendency of a body to resist change in its state of motion.
- Question 33 of 33
33. Question
Category: NCERTWhich of the following is correct about work done by a force?
CorrectWork is said to be done when a force is applied and the body is displaced.
Incorrect
NCERT Based Quiz
Home
Syllabus
Contact Us




