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Class – VII, , Subject –Science, , P.A.- 2 (2021-22), , Time : 1Hr, , Max Marks : 40, , Attempt all questions :, Q.1 Which of the following statement is correct in reference to the role of A (shown in the, diagram) during a reproduction in plants?, , [a] It contain pollen grain, [b] Landing platform of pollen grain, , [c] It contain female gamete, [d] It helps in seed dispersal, , Q.2 The process in which off spring are exact copies of their either parents., [a] Sexual reproduction, [b] Gamete formation, , [c] Asexual reproduction, [d] Zygote, , Q.3 In which of the following plants, new plants grow from leaf of the parent plant., [a] Money plant, [b] Bryophyllum, , [c] Potato, [d] Spores, , Q.4 What do we call magnetic material around which the coil is wound ?, [a] Core, [b] Solenoid, , [c] Electromagnetic, [d] Metal, , Q.5 A bulb has a thin wire made up of?, [a] Nichrome, [b] Tungsten, , [c] Filament, [d] Copper, , Q.6 In the diagram given below , which statement is not true ?, 1. This is a Dandelion seed, 2. This is a maple seed, 3. It has wings attached to it

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[a] Only (i), [b] (i) & (ii) both, , [c] only (iii), [d] (i), (ii) & (iii), , Q.7 In which of the following , resistance is offered by copper wire:, [a] Little resistance, [b] No resistance, , [c] Heavy resistance, [d] A & B both, , Q.8 The picture depicted below , which statement is true about this ?, 1., 2., 3., 4., , Germination of seed, Growth of seed, Root arises from radicle, Shoot arises from plumule, , [a] 1 & 2 both, [b] Only 2, , [c] 1,3 & 4, [d] 1,2,3, & 4 All, , Q.9 The flowers which contain both male & female reproductive organ is :, [a] Hermaphrodite, [b] Incomplete, , [c] Unisexual, [d] Insectivorous, , Q.10 Presence of large coloured petals is required in which pollination :, [a] Wind pollination, [b] Insect pollination, , [c] Water pollination, [d] Animal pollination, , Q.11 the tube which carries the pollen grain to the female gamete :, [a] Style, [b] Vegetative tube, , [c] Pollen tube, [d] Stigma, , Q.12 Budding takes place in :, [a] Yeast, [b] Sponges, , [c] Corals, [d] All of the above, , Q.13 In which of the following effect electric iron produce when electric current pass through, it:

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[a] Heating effect, [b] Chemical effect, , [c] Physical effect, [d] Magnetic effect, , Q.14 Which of the following scientist , stated that a white light is made up of seven colours:, [a] Sir Isaac Newton, [b] Robert Brown, , [c] Galileo Galili, [d] Oesterd, , Q.15, 1- Voilet, , 2- Blue, , 3- Green, , 4- Yellow, , 5- Indigo, , 6- Orange, , 7- Red, , Arrange the number in order of colour of rainbow, [a] 1-2-3-4-5-6-7, [b] 1-5-2-3-4-6-7, , [c] 1-3-2-4-5-6-7, [d] 1-5-2-3-6-4-7, , Q.16 A dentist uses ______________ to see magnified image of teeth., [a] Concave mirror, [b] Convex lens, , [c] Concave mirror, [d] Convex lens, , Q.17 On the basis of diagram given below which statement is true about this image. Choose, the correct option, 1., 2., 3., 4., , Image is real, Image is erect, Image is of same size as the object, Image is virtual, , Appears to be much nearer to the mirror as the object is much for from mirror., , [a] 2,3 & 4 is true, [b] 1,2 & 3 is true, , [c] 3,4 & 5 is true, [d] Only 5 is true, , Q.18 The picture given below , is based on the principle which is used also in electricity

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[a] Potential difference, [b] Movement of water, , [c] Water flow, [d] A water pump, , Q.19 In which of the following is absolutely necessary in an electric circuit :, [a] Bulb, [b] Switch, , [c] Voltmeter, [d] Connecting, , Q.20 Which of these is not a circuit element ?, [a] Potential difference, [b] Voltmeter, , [c] Resister, [d] Battery, , Q.21 The strength of a magnetic field due to a solenoid can be increased by, [a], [b], [c], [d], , Increasing the number of turn in solenoid, Increasing the current in the solenoid, Winding the solenoid around a magnetic material, All of the above, , Q.22 The necessary required for a fuse wise is :, [a] Conductor with low melting point, [b] Conductor with high melting point, , [c] Insulator with low melting point, [d] Insulator with high melting point, , Q.23 In the given diagram , X and Y are the end colours of the spectrum of white light. What is, the name of colour Y., , X, , y, , [a] Red, [b] Voilet, Q.24 A table spoon is an example of:, , [c] Indigo, [d] Blue

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[a] Concave mirror, [b] Convex mirror, , [c] Only convex, [d] Both A and B, , Q.25 It is proved by scientist through experiments that light travel in straight line. What is the, name this phenomena., [a] Rectilinear propagation of light, [b] One line motion, , [c] Curvilinear motion of light, [d] Linear line motion, , Q.26 Math the column A to Column B & choose the correct option as given below :, Column A, i. Image obtained on screen, ii. Used by dentist, iii. White light composed, iv. Convex mirror, , [a], [b], [c], [d], , Column B, [a] Concave mirror, [b] Real image, [c] Seven colour, [d] Reflecting surface is bulging out, , I, , II, , III, , IV, , b, a, b, d, , a, b, c, a, , c, c, a, b, , d, d, d, c, , Q.27 Which one of the following shows lateral inversion :, [a] Plane mirror, [b] Concave mirror, , [c] Convex mirror, [d] Convex lens, , Q.28 Light travels in :, [a] Curved line, [b] Straight line, , [c] Linear line, [d] Can’t stay, , Q.29 When light bouncer off a surface the surface is, [a] Transparent, [b] Reflector, , [c] Opaque, [d] Transparent, , Q.30 White light is composed of, [a] Three colours, [b] Seven colours, , [c] Five colours, [d] Eight colours, , Q.31 Light is a form of, [a] Energy, [b] Power, , [c] Heat, [d] Temperature, , Q.32 An image formed by a mirror or lens which is upright is :

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[a] Virtual, [b] Concave, , [c] Erect, [d] Convex, , Q.33 The ovaries of different flowers may contain, [a] Only one ovule, [b] Many ovule, , [c] One to many ovule, [d] Only two ovules, , Q.34 Which of the following is a part of pistil?, [a] Stigma, [b] Anther, , [c] Filament, [d] Pollen, , Q.35 Boojho & Paheli were given one mirror each by their teacher. Boojho found that his image, to be erect and of the same size whereas Paheli found her image erect & smaller in size. This, means that the mirror of Boojho & paheli are respectively., [a] Plane mirror & concave mirror, [b] Concave mirror & convex mirror, , [c] Plane mirror & convex mirror, [d] Convex mirror & plane mirror, , Q.36 After fertilization , ovule develops into ?, [a] Fruits, [b] Stem, , [c] Root, [d] Seed, , Q.37 Transfer of pollen grains from anther to the stigma of a flower is called :, [a] Pollination, [b] Reproduction, , [c] Fertilization, [d] Fruit, , Q.38 Which of the following contains the egg cell in plants ?, [a] Anther, [b] Stigma, , [c] Pollen grain, [d] Ovule, , Q.39 In which of the following method given below, fungus , moss & fern reporuduce by a, common method of asexual reproduction. Name the method., [a] Spore formation, [b] Sexual reproduction, , [c] Vegetative reproduction, [d] Pragmentation, , Q.40 Mention the mode of reproduction in the following plants, Spiragyra, Yeast, Money plant, Amoeba, , Budding, Fragmentation, Fission, Vegetative propagation, , I, , II, , III, , IV, , [a] a, , b, , c, , d

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[b] b, [c] b, [d] a, , a, c, b, , d, a, d, , c, d, c, , Q.41 Pick the odd one out from the following on the basis of mode of reproduction:, I. Sugarcane, , II- Potato, , [a] I and II both, [b] Only III, , III- Rice, , IV- Rose, [c] Only II, [d] I & IV both, , Q.42 Sarita had the following part (given below in the options) of a rose plant. Which of them, can be used to grow a new rose plant ?, [a] A leaf, [b] A branch, , [c] A flower, [d] Pollen grain, , Q.43 Which type of pollination does the given figure indicate?, , [a] Self pollination, [b] Fertilization, , [c] Cross pollination, [d] Spore formation, , Q.44 In the figure given below , label the part marked i, ii, iii:, , [a] Pollen grain , pollen tube , egg, [b] Stigma, style, overy, , [c] Pollen grain , style , egg, [d] Pollen grain , style , overy, , Q.45 Which of the following precautions need not be taken while using electric appliances ?

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[a], [b], [c], [d], , Never touch lighted electric bulb connected to mains, Never experiment with the electric supply from mains, Never use any wire to replace fuse wire, Never turn switch in ‘ON’ position, , Q.46 A glowing bulb warm due to the, [a] Heating effect of current, [b] Magnetic effect of current, , [c] Chemical effect of current, [d] Physical effect of current, , Q.47 Which of the following is being sued in place of fuse ?, [a] MCB, [b] Nichrome, , [c] Filament, [d] Switch, , Q.48 A combination of two or more cells is called a, [a] Battery, [b] Composed cell, , [c] Circuit, [d] Switch, , Q.49 The amount of heat produced in a wire depends on its, [a] Material, [b] Length, Q.50 When the bulb gets fused , the electric current :, [a], [b], [c], [d], , Flows in the circuit, Does not flow in the circuit, Sometimes flows & sometimes not, None of these, , [c] Thickness, [d] All of these