Mathematics, Science and Pedagogy MCQ Question with Answer | ||||
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Q31. The process of heating milk to 70 °C for about 15–30 seconds, then suddenly cooling it is called
(a) Preservation
(b) Sterilization
(c) Pasteurization
(d) Fortification
Q32. Estrogens the female sex hormones are produced in the
(a) Uterus
(b) Ovaries
(c) Pituitary Gland
(d) Liver
Q33. In comparison to the inhaled air, the composition of exhaled air is
(a) 78% nitrogen, 4% carbon dioxide, and 17% oxygen
(b) 78% nitrogen, 17% oxygen, 4% carbon dioxide and a large amount of water vapour
(c) 0.04% carbon dioxide, 21% oxygen, 78% nitrogen and a large amount of water vapour
(d) 10% oxygen, 8% carbon dioxide, 81% nitrogen and a small amount of water
Q34. The wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium is
(a) 3 m
(b) 2 m
(c) 4 m
(d) 5 m
Q35. A person of 800 N weight is going up in an accelerator. The accelerator is moving with a uniform velocity. What is the force exerted by the person on the floor of the escalator?
(a) 600 N
(b) 800 N
(c) 1000 N
(d) 1200 N
Q36. An athlete is running along the boundary of a square playground of perimeter 2000 m at a speed of 200 m/min. He ran for 30 min. How much distance did he cover and what is the magnitude of his displacement?
(a) Distance =6 km, Displacement = 0 km
(b) Distance =6000 m, Displacement = 1000 m
(c) Distance = 5 km, Displacement = 0 km
(d) Distance = 5000 m, Displacement = 5000 m
Q37. Which of the following are true for displacement?
I. It cannot be zero.
II. Its magnitude is greater than the distance travelled by the object.
III. Its magnitude is less than the distance travelled by the object.
IV. Its magnitude is equal to the distance travelled by the object.
(a) III and IV
(b) I and III
(c) II and IV
(d) I and IV
Q38. Water is one of the important components of food because
(a) It helps in the digestion by dissolving the food and facilitating its forward movement
(b) It helps to absorb the nutrients from the digested food in soluble form
(c) It helps in the excretion of waste
(d) All of the above
Q39. Which of the following statements about the roots are false?
I. Roots help plants anchor to the soil and prevent soil erosion.
II. Roots help in the absorption of water and minerals from the soil.
III. Plants that have root hairs generally grow in terrain that has scarce water.
IV. Roots cannot store food because photosynthesis is not possible without sunlight.
(a) II and IV
(b) II and III
(c) III and IV
(d) I, II and IV
Q40. Which of the following statements are not true?
I. In asexual reproduction, plants produce new plants with seeds.
II. In sexual reproduction, new plants are obtained from seeds.
III. In vegetative propagation, new plants are produced from flowers.
IV. Vegetative reproduction is an asexual mode of reproduction in plants.
(a) I and II
(b) I and III
(c) II and IV
(d) III and IV
Q41. Plants depend on various types of seed dispersal to scatter their seeds. Which of the following sentences is false regarding Dandelion?
(a) Their seeds are dispersed by wind.
(b) They produce seeds in very little quantity.
(c) Their flowers are hairy, feather-like structures.
(d) Their seeds can germinate far away from their parent plant.
Q42. Which of the following is incorrect?
I. Plant seeds develop in the ovary which itself usually becomes the fruit.
II. Plants produce flowers in order to make seeds so that their species can propagate.
III. Just as roots of some plants store food, they may also have nodes, internodes and buds.
IV. For photosynthesis, leaves take in carbon dioxide and water from the soil to release oxygen in the air.
(a) I and III
(b) II and IV
(c) III and IV
(d) I, III and IV
Q43. Find out the odd pair.
(a) Leaves : Food
(b) Stomata : Protection
(c) Pollens : Bees
(d) Flowers : Reproduction
Q44. In which of the following cases will the given metal not be able to displace copper from copper sulphate?
I. Zn + CuSO4 →?
II. Hg + CuSO4 →?
III. Pb + CuS04 →?
IV. Ag + CuS04 →?
(a) I and II
(b) II and III
(c) II and IV
(d) I, III and IV
Q45. What is the right sequence of various steps during the process of photosynthesis?
I. Oxygen is released into the air through stomata.
II. Chlorophyll converts solar energy to chemical energy.
III. Hydrogen reduces carbon dioxide to produce carbohydrates.
IV. Chemical energy is used to split water molecules into hydrogen and oxygen molecules.
(a) I, I, II, III
(b) II, IV, I, III
(c) IV, I, III, II
(d) II, IV, III, I
Q46. In a balanced diet, the largest part of our food is contributed by
(a) Vitamins and minerals
(b) Carbohydrates and fats
(c) Proteins and minerals
(d) Fats and proteins
Q47. Which of the following functions is not performed by fats?
(a) Insulation
(b) Storage of energy
(c) Hormone synthesis
(d) Absorption of vitamins B complex and C
Q48. Which of the following is not an appropriate way for the conservation of trees?
(a) Every deforestation immediately followed by afforestation
(b) Slogan writing and poster making to be used in localities
(c) Holding discussion at the local community level
(d) Making a law against cutting of trees
Q49. One of the most basic ways for developing an understanding of the concepts of science is
(a) Keenly observing and experiencing
(b) Understanding abstracted information
(c) Memorising the facts and rules
(d) Repeated practice
50. Which of the following conditions is not a component of a good teaching-learning environment?
(a) Children learning by doing the things themselves with the assistance of a teacher
(b) Children helping each other in completing the task
(c) Children making fewer mistakes
(d) Children asking a lot of questions
Q51. Which of the following is a limitation of the discussion method?
(a) Developing habit of teamwork
(b) Providing safe space to less active students
(c) Enhancing problem-solving skills in students
(d) Providing scope of criticism for incorrect approaches, ideas and concepts
Q52. Which of the following techniques is the best to make students aware of different kinds of fuel?
(a) Showing pictures of fuels
(b) Discussing with them the uses of fuels
(c) Reading about types of fuels from the book
(d) Asking children to name and observe different types of fuels used at home or for travelling, etc.
Q53. If a teacher finds that many students are not taking interest in the lesson in the class and feeling sleepy, then what should be her response towards those students?
(a) Warn them to be attentive and sit straight lest they should face punishment
(b) Ask them to wash their face so that they feel more attentive in class
(c) Start talking with them on another topic not associated with the subject being taught
(d) Pick some thought-provoking question types and interesting facts related to the running concept for discussion
Q54. Which of the following is not a component of active learning?
(a) Remembering
(b) Experimenting
(c) Questioning
(d) Exploring
Q55. Which of the following activities is not good for the learning of science?
(a) Involving students in activities such as group discussions and group projects
(b) Giving home assignments that focus on revision and reinforcement
(c) Usually beginning a class by posting a few key questions
(d) Experimenting and brainstorming in the class
Q56. How will you help your friend who suffers from loose motion and vomiting?
(a) By telling him to rest and not go out
(b) Telling him to take pain-relieving medicines
(c) Taking him to go to a hospital for vaccination
(d) Giving him fluids at frequent intervals
Q57. Higher achievement and self-esteem could be obtained in students by
(a) Engaging them in memorising the concepts
(b) Taking more periodic evaluation
(c) Following cooperative learning
(d) Giving more home assignments
Q58. Role-play activities help in
(a) Learning roles of famous people
(b) Keeping students engaged in the class
(c) Ensuring active participation of students in learning
(d) Giving importance to people who have done great work in the world
Q59. Which of the following helps in motivating the learners in a class?
(a) Maximum attendance in the class
(b) Remedial work is given by the teacher
(c) Questioning, experimenting and brainstorming
(d) Pin drop silence in the class
Q60. While teaching a lesson on ‘food’ to the students of class VI, Ms. Renu asked the students to make a poster on ‘food for all. She kept observing the students while they were busy making the poster. She will assess the students on their
(a) Drawing
(b) Creativity
(c) Language
(d) All of the above