Asset Mock Test

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Question 1 of 40

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The density of water is 1 g/cc. Ice floats on water with 90% of its volume inside the water. So a cube of ice with 3 cm side will have ( A. 24.3 g, B. 27 g, C. 30 g ) mass.

Explanation

Question 2 of 40

A nutcracker is placed as shown on a balance with one part of it tied as shown. The beam is balanced. What will happen to the balance when the thread burns and its top part falls?

Select one of the following:

A. Nothing - the balance will be completely undisturbed.
B. Pan P will momentarily go down and then return to the balanced position.
c. Pan Q will momentarily go down and then return to the balanced position.
D. Pan Q will go down and stay down.

Explanation

Question 3 of 40

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Scientists have found that even light is affected by the force of gravity, that is, the path of a light ray 'bends' towards massive star near it. See the figure below. When we observe through a telescope from earth the neutron star appears ( A. near A, B. near B, C. near C, D. near D ).

Explanation

Question 4 of 40

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Figure shows 5 heavy metal balls P, Q, R, S and T held by cords such that they exactly touch each other. First ball P is pulled away as shown and then released so that it hits
the ball Q. Then ( A.P& Q rebounds, S & T will move forward, B. Only P which will rebound back., C. Q, R, S and T will move forward., D. Only T will move forward. )

Explanation

Question 5 of 40

Two similar, open cylindrical vessels are connected as shown in the figure. One of them has water in it, while the other is empty. We are required to draw the graph of the water level in each vessel against time immediately after the stopper is opened.
Which of these is the correct graph?
(The level in one cylinder is shown by the solid line and in the other by the dotted line)

Select one of the following:

Explanation

Question 6 of 40

The rate of growth of hair on the human head has been estimated as about 0.44 mm per day. Assuming that this rate is uniform, about what LENGTH of hair (considering just 1 strand) would a normal male adult cut in 20 years?

Select one of the following:

A. About 30 cm.
B. About 3 m.
C. About 30 m.
D. About 300 m.

Explanation

Question 7 of 40

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A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon. ( A. Frictional and Gravitational forces, B. Frictional, C. Gravitational, D. Magnetic ) is responsible for meteoroids entering the Earth's atmosphere.

Explanation

Question 8 of 40

Jayasree was looking at an object in a mirror. Which of the ray diagrams, given below, shows correctly how the image of the object is formed in the mirror?

Select one of the following:

Explanation

Question 9 of 40

The pH of a substance is a measure of its acidity as shown in the scale:
When Suresh complained of acidity, his doctor prescribed a liquid antacid which gave him relief. Which of these could be the pH of the antacid?

Select one of the following:

A. 0
B. 3
C. 7
D. 9

Explanation

Question 10 of 40

Both AIR CONDITIONERS and AIR COOLERS can be used to cool rooms. What is the main difference in the effect they produce?

Select one of the following:

A. They are basically the same, but air conditioners cool much more.
B. Air conditioners control the humidity of the room also, unlike air coolers.
C. They are basically the same, but air conditioners are meant for light use only.
D. They are basically the same, but air coolers can be used only for a few hours at a stretch.

Explanation

Question 11 of 40

In which of these ways would our vision have been affected if we had only one eye rather than a PAIR of eyes to see with?

Select one of the following:

A. We would not be able to distinguish depth well.
B. We would not be able to distinguish colour well.
C. We would not be able to distinguish motion well.
D. Our vision would not be affected in any of the above ways.

Explanation

Question 12 of 40

Isomers are molecules which have the same number and type of atoms, but their arrangement is different. For example,

Select one of the following:

Explanation

Question 13 of 40

Most television sets these days can be operated through a REMOTE CONTROL. How do most 'remotes' communicate with TV sets?

Select one of the following:

A. Using radio waves
B. Using infra-red rays
C. Using ultra-violet rays
D. Using microwaves

Explanation

Question 14 of 40

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Mary took four pots having the same plants of the same age and applied Fertilizers P and Q in the quantities shown. All the plants were kept undisturbed in similar conditions near each other. From the observation it is clear that in smaller quantities ( Fertilizer P, Fertilizer Q ) is more effective; in larger quantities, ( A. Fertilizer Q, B. Fertilizer P ) .

Explanation

Question 15 of 40

Darsheel took an empty plastic bottle and used a nail to poke a hole on the side of the bottle. He covered the hole with his finger and filled the bottle with water all the way to the top. Then he tightly screwed on the cap, and slowly took his finger away from the hole. No water came rushing out of the hole, when he did this.

Select one of the following:

A. Atmospheric pressure acts on the hole pushing the water in, but because the cap is closed, no atmospheric pressure acts on the surface of the water, to push it down and force it out of the bottle.
B. The weight of the water in the bottle exerts more force against the atmospheric pressure acting on it, preventing water from coming out of the bottle.
C. He must have conducted the experiment on a day when the atmospheric pressure was very low, so there was not enough pressure on the water to push it out of the bottle.
D. The hole he had made was too high. If it was lower, near the base of the bottle, the water would have come out.

Explanation

Question 16 of 40

Zeenat placed three balls on a table to show the positions of the Earth, the Sun and the Moon as shown in the figure. Based on the arrangement shown, which phase of the Moon will be visible to people on the Earth?

Select one of the following:

Explanation

Question 17 of 40

Two liquids P and Q, and two solids R and S are shown in different undisturbed arrangements below. Study the arrangements and arrange P, Q, R and S in order of INCREASING density.

Select one of the following:

A. P < Q < R < S
B. Q < S < P < R
C. Q < P < S < R
D. S < Q < P < R

Explanation

Question 18 of 40

Fill the blank spaces to complete the text.

'Brainplug', a product for students, claims to improve their Maths skills. Mahesh wants to design an experiment to test this claim. He plans to take two groups of students from a class. Both the groups study maths in their classes. But only one of the groups is made to use 'Brainplug' for two months. In order to test his claim, he can give similar tests before and after the program to and compare their performances .

Explanation

Question 19 of 40

Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. In vertebrates, it is composed of blood cells suspended in blood plasma. Which of these is NOT a function of blood.

Select one or more of the following:

A. To digest and absorb food.
B. To protect against disease.
C. To transport Impulses
D. To carry waste away from cells.

Explanation

Question 20 of 40

A satellite's orbit is fixed at a height of 35,970 km. At this height, the satellite is able to continuously look at the same part of the Earth even as it moves. Which of these would be true at this height?

Select one of the following:

A. Signals from the Earth need not be amplified for transmission.
B. The satellite will always be shielded from the Sun by the Earth.
C. The orbital period of the satellite would be equal to 24 hours.
D. Photographs of the entire Earth can be taken from that height.

Explanation

Question 21 of 40

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A vitamin is an organic compound, which means that it contains carbon. It is also an essential nutrient that the body may need to get from food. Same time they are required ( in small amounts for normal body growth, in large amounts for normal body growth ) and activity. Each organism has different vitamin requirements.

Explanation

Question 22 of 40

The figure below shows the path taken by a ray of light as it reflects off a smooth surface. Which of these is true?

Select one of the following:

A. angle ABE = angle ABC
B. The path A----> B----> C is the shortest path connecting A to C and touching DE.
C. B will always be the mid point of DE.
D. If DE (the mirror) is rotated around B, the ray would still reflect along BC.

Explanation

Question 23 of 40

Most television sets these days can be operated through a REMOTE CONTROL. How do most 'remotes' communicate with TV sets?

Select one of the following:

A. Using radio waves
B. Using infra-red rays
C. Using ultra-violet rays
D. Using microwaves

Explanation

Question 24 of 40

The sound being produced by a large machine in a factory is shown by this graph. An engineer has a theory. He says that he will create a sound using a computer and amplifier that will produce an 'anti-noise' having exactly the opposite wave form - and this will cancel out the sound and reduce the noise quite a bit. Can this idea work?

Select one of the following:

A. Yes, this is used in some applications.
B. Yes, in theory, but it doesn't work in practice.
C. No, the noise will, in fact double.
D. No, the machine will drown out the computer noise.

Explanation

Question 25 of 40

When Ram was about to switch on the light in his room, his sister stopped him. She told him that he should first DRY his hands (which were wet), before touching the electric switch. Was Ram's sister correct? Why / why not?

Select one of the following:

A. Yes. The water can cause a short circuit (There is no increased danger to Ram)
B. No. We should be careful in any case - dry or wet makes no difference.
C. Yes. Wetness reduces body resistance and increases danger of shock.
D. No. Water is a poor conductor of electricity, hence wet fingers are safer.

Explanation

Question 26 of 40

Setup P in the figure shows an egg being boiled. In setup Q, a similar arrangement is used, but inside an apparatus which creates near-vacuum condition. Will the egg in setup Q get cooked faster?

Select one of the following:

A. Yes, lower pressure lowers the boiling point, so the water and egg will boil earlier than setup P.
B. No, lower pressure raises the boiling point, so the water and egg will boil later than setup P.
C. No, lower pressure lowers the boiling point; the water will boil away quickly but the egg will not boil.
D. Yes, lower pressure raises the boiling point, so the water will get hotter and the egg will boil
faster.

Explanation

Question 27 of 40

Which of the following Venn diagrams would BEST be suited to represent the three categories of animals?

Select one of the following:

Explanation

Question 28 of 40

To compare the hearing capacities of 5 of his friends, Ravi designs a simple experiment. He places a CD player at the end of a long hall containing a CD with 5 well-known song. One by one each person hears the same 5 songs he plays softly but at a pre-determined volume. Each person starts at a distance of 1 meter from the player and moves away from it. The distance at which a person says that he cannot hear the song any more, is noted. Others are not in the room when 1 person is hearing the song. Which of these steps may increase the reliability of the results obtained?

Select one of the following:

A. Having each person listen to just 1 song instead of 5
b. Allowing all people to stay in the room for the entire experiment
C. Having each person start from far and walk towards the CD player
D. Varying the volume for the different songs being played.

Explanation

Question 29 of 40

Study the reaction given below.
PQ + XY → XQ + PY (P, Q, X and Y are atoms of different elements.)
A reaction like this is a/an ❌.

Drag and drop to complete the text.

A. Neutralisation

B. Double displacement reaction

C. Oxidation reaction

D. Reduction reaction.

Explanation

Question 30 of 40

Resistors are semi-conductor devices which are important components of electronic circuits. Resistance is measured in OHMS, and each resistor has a rating in ohms. Because a resistor is small and may be fixed in any orientation, its resistance value is coded on it using coloured bands rather than writing its resistance value on it. A colour code is used to determine the value of a resistor as per this table. What is the resistance of the resistor shown here?

Select one of the following:

A. 1000 ohms
B. 20 ohms
C. 2000 ohms
D. 20000 ohms

Explanation

Question 31 of 40

Resistors are semi-conductor devices which are important components of electronic circuits. Resistance is measured in OHMS, and each resistor has a rating in ohms. Because a resistor is small and may be fixed in any orientation, its resistance value is coded on it using coloured bands rather than writing its resistance value on it. A colour code is used to determine the value of a resistor as per this table. Which three colour bands represent 600 ohms?

Select one of the following:

A. Blue, Black, Brown
B. Blue, Brown, Black
C. Brown, Blue, Black
D. Violet, Blue, Brown

Explanation

Question 32 of 40

Study this electrical circuit. It consists of a powerful battery, a bulb, an electromagnet and a movable connection. The connection is designed in such a way that it closes (that is, it allows electric current to pass) when the electromagnet is not magnetised; but opens when the electromagnet is magnetised. If the electromagnet takes 5 seconds to get magnetised, what will be status of the electric bulb?

Select one of the following:

A. It will remain OFF - it will not glow at all.
B. It will alternate between ON and OFF states.
C. It will come ON after some seconds and keep glowing.
D. It will stay ON for a few seconds and then go OFF.

Explanation

Question 33 of 40

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In science and engineering, the weight of an object is the force acting on the object due to gravity. ( A. A small sized apple, B. A student of Class 4, C. A 5 rupee coin, D. 500 gram of butter ) would weigh approximately 1 Newton.

Explanation

Question 34 of 40

An oxide ion (O2-) formed from an Oxygen–18 atom contains exactly.

Select one of the following:

A. 8 electrons, 8 protons, 10 neutrons
B. 10 electrons, 8 protons, 10 neutrons
C. 8 electrons, 10 protons, 8 neutrons
D. 6 electrons, 6 protons, 12 neutrons

Explanation

Question 35 of 40

Which of the following is the MOST important reason for CNG to be promoted as a fuel for automobiles?

Select one of the following:

A. it does not emit carbon dioxide
B. it undergoes almost complete combustion
C. it is a renewable source of energy
D. it satisfies all the conditions A, B and C.

Explanation

Question 36 of 40

When can we be SURE that letters X, Y and Z represent the same element?

Select one of the following:

A. When the number of electrons are the same in each of X, Y and Z.
B. When the number of neutrons are the same in each of X, Y and Z.
C. When the number of protons are the same in each of X, Y and Z.
D. X, Y and Z can never represent the same element.

Explanation

Question 37 of 40

The simple series circuit consists of three identical bulbs 1, 2 and 3 connected to a battery. As shown in Fig X, all the bulbs glow with equal brightness. Which of the following happens when a wire is connected between points P and Q (as shown in Fig Y)?

Select one of the following:

A. Bulb 2 fuses and stops glowing. Bulbs 1 and 3 glow with greater brightness.
B. Bulb 2 stops glowing. Bulbs 1 and 3 glow with greater brightness.
C. All the three bulbs glow but with reduced brightness.
D. No change takes place. All the three bulbs glow without any change in the brightness.

Explanation

Question 38 of 40

The table below shows a few products obtained from plants and animals.
Which one of the following has been placed in the wrong column?

Select one of the following:

A. Jaggery
B. Tamarind
C. Rubber
D. Silk

Explanation

Question 39 of 40

The Andaman Islands in the Bay of Bengal depend exclusively on rain for their freshwater supply. Some of the hotels in the Andamans started using seawater instead of fresh water for flushing toilets. This is an example of ❌

Drag and drop to complete the text.

A recycling of resources

B conservation of resources

C prevention of pollution

D environmental planning

Explanation

Question 40 of 40

Select from the dropdown list to complete the text.

In the given world map, the place is closest to Bolshevik Island is ( a. Queen Elizabeth Islands, B. Moscow, C. Kolkata, D. Cape of Good Hope ).

Explanation

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	Created by Jisha Gopal almost 4 years ago

9th grade Sciences Quiz on Asset Mock Test, created by Jisha Gopal on 19/01/2021.

Asset Mock Test

Question 1 of 40

Select from the dropdown list to complete the text.

The density of water is 1 g/cc. Ice floats on water with 90% of its volume inside the water. So a cube of ice with 3 cm side will have A. 24.3 g B. 27 g C. 30 g( A. 24.3 g, B. 27 g, C. 30 g ) mass.

Explanation

Question 2 of 40

A nutcracker is placed as shown on a balance with one part of it tied as shown. The beam is balanced. What will happen to the balance when the thread burns and its top part falls?

Select one of the following:

Explanation

Question 3 of 40

Select from the dropdown list to complete the text.

Explanation

Question 4 of 40

Select from the dropdown list to complete the text.

Explanation

Question 5 of 40

Select one of the following:

Explanation

Question 6 of 40

The rate of growth of hair on the human head has been estimated as about 0.44 mm per day. Assuming that this rate is uniform, about what LENGTH of hair (considering just 1 strand) would a normal male adult cut in 20 years?

Select one of the following:

Explanation

Question 7 of 40

Select from the dropdown list to complete the text.

Explanation

Question 8 of 40

Jayasree was looking at an object in a mirror. Which of the ray diagrams, given below, shows correctly how the image of the object is formed in the mirror?

Select one of the following:

Explanation

Question 9 of 40

The pH of a substance is a measure of its acidity as shown in the scale: When Suresh complained of acidity, his doctor prescribed a liquid antacid which gave him relief. Which of these could be the pH of the antacid?

Select one of the following:

Explanation

Question 10 of 40

Both AIR CONDITIONERS and AIR COOLERS can be used to cool rooms. What is the main difference in the effect they produce?

Select one of the following:

Explanation

Question 11 of 40

In which of these ways would our vision have been affected if we had only one eye rather than a PAIR of eyes to see with?

Select one of the following:

Explanation

Question 12 of 40

Isomers are molecules which have the same number and type of atoms, but their arrangement is different. For example,

Select one of the following:

Explanation

Question 13 of 40

Most television sets these days can be operated through a REMOTE CONTROL. How do most 'remotes' communicate with TV sets?

Select one of the following:

Explanation

Question 14 of 40

Select from the dropdown lists to complete the text.

Explanation

Question 15 of 40

Select one of the following:

Explanation

Question 16 of 40

Zeenat placed three balls on a table to show the positions of the Earth, the Sun and the Moon as shown in the figure. Based on the arrangement shown, which phase of the Moon will be visible to people on the Earth?

Select one of the following:

Explanation

Question 17 of 40

Two liquids P and Q, and two solids R and S are shown in different undisturbed arrangements below. Study the arrangements and arrange P, Q, R and S in order of INCREASING density.

Select one of the following:

Explanation

Question 18 of 40

Fill the blank spaces to complete the text.

Explanation

Question 19 of 40

Select one or more of the following:

Explanation

Question 20 of 40

A satellite's orbit is fixed at a height of 35,970 km. At this height, the satellite is able to continuously look at the same part of the Earth even as it moves. Which of these would be true at this height?

Select one of the following:

Explanation

Question 21 of 40

Select from the dropdown list to complete the text.

Explanation

Question 22 of 40

The figure below shows the path taken by a ray of light as it reflects off a smooth surface. Which of these is true?

Select one of the following:

The density of water is 1 g/cc. Ice floats on water with 90% of its volume inside the water. So a cube of ice with 3 cm side will have ( A. 24.3 g, B. 27 g, C. 30 g ) mass.

The pH of a substance is a measure of its acidity as shown in the scale:
When Suresh complained of acidity, his doctor prescribed a liquid antacid which gave him relief. Which of these could be the pH of the antacid?

Study the reaction given below.
PQ + XY → XQ + PY (P, Q, X and Y are atoms of different elements.)
A reaction like this is a/an ❌.