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Class 6 Science Chapter 9 Motion and Types of, Motion Textbook Questions and Answers, 1. Identify, , the types of motion., , Question a., , Movement of the earth around the sun:, , Answer, periodic, drcular, , Question b., , Movement of ceiling fan:.., Answer:, , circular, , ****", , ..
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Question c., A, , rocket launched from the ground:..., , Answer, linear, , Question d., A, , fish swimming in water: .., , Answer:, , random, Question e., The plucked string of a sitar:.., , ***********"*, , Answer:, , oscillatory motion, , ', , '
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2. Fill in the blanks., , (linear, non-linear, uniform linear, non-uniform, linear, uniform circular, random, circular,, , non, , uniform circular), Question a., If a ball is, , released from the terrace of a building,, , it comes down in.., , motion. On the other, , hand, it reaches the ground in, , ., , motion, , if it, , is thrown with a force away from the terrace in a, , direction parallel to the terrace., Answer:, , uniform linear, non-uniform linear
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Question b., , The motion of an aeroplane on the runway before, , takeoffis.., Answer:, linear, Question c., , The kite looking for its prey flies with, , motion, , in, , Answer:, , circular, , the sky., , *****
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Question d., , Children sitting in a rotating giant wheel have, ... motion, while those sitting in a merry-go, , round have a ....., , motion., , Answer:, , uniform circular, non-uniform circular
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3. How are we, , different?., , Questionna., , Oscillatory motion and Linear motion., , Answer, , Oscillatory motion, 1. In, , oscillatory motion,, , Linear motion, 1. In linear, , motion,, , body swings backand, , an object shows, , forth., , displacement, , e.g. Motion of a swing,, , straight line, e.g., , motion of pendulum of, , train, , a clock., , motion of marching, , in, , in a, A, , motion,, , soldiers.
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Question b., , Linear motion and Random motion, , Answer, , Random motion, , Linear motion, 1. Motion in a, , straight, , 1., , The motion that, , line is called linear, , changes its, , motion., , direction and speed, , e.g. Motion of a train, , continuously is, called random, motion, e.g. Motion, of a bird.
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Question c., , Random motion and Oscillatory motion, Answer:, , Random motion, 1, , The motion that, , Oscillatory motion, , 1.The motion of a, , changes its direction, , body that is swinging, , and speed, , back and forth is, , continuously is, , called oscillatory, , called random, , motion, e.g. Pendulum, , motion, e.g. Motion, , of a clock, the wing of, , of a butterfly, , a bird.
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4. Explain in your own words, giving one example, , each., Question a., , Linear motion, , Answer, An object that, , shows displacement along a, , straight line is called linear motion, e.g. A vehicle, moving on a road., , Question b., , Oscillatory motion, , Answer, The motion of a body swinging back and forth is, , called oscillatory motion, e.g. Motion of a, , pendulum of a clock.
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Question c., , Circular motion, , Answer, The motion of an object along a circular path is, , called circular motion, e.g. Motion of a ceiling, , fan., Question d., , Random motion, , Answer, The motion that changes its direction and speed, , continuously is called random motion, e.g., Motion of a butterfly.
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Questione., , Periodic motion, Answer:, The repetitive motion in which the moving object, , passes through a certain point again and again, after a fixed period is called as periodic motion,, e.g. The minute hand of a clock.
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5., , Answer the following questions, , in your own, , words., Question a., , Which types of motion are seen in birds flying in, , the sky?, Answer:, 1., , The birds flying, , in, , the sky exhibit random, , motion., 2. The wings of the birds show oscillatory, , motion.
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Question b., Write in detail about your experience of various, , types of motion while riding a bicycle on a road., Answer:, 1. The cycle, , itself shows linear motion., , 2. The wheels of the cycle show circular, , motion., 3., , The cycle chain shows periodic motion, if, , the speed is uniform., 4. The handle bar shows random motion.
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6. Complete, , the puzzle using words for types of, , motion:, Question a., , Complete the puzzile using the words for types of, motion., 1. A spring is stretched and one end is released., , 2. A minute hand., 3. A, , see-saw., , 4-5. Children in a march past., 6. A, , stone rolling down a hillside.
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MaharashtraBoardSolutions.com, , Answer, 1. Oscillatory, , 2. Circular, 3. Periodic, , 4. Uniform, 5. Linear, 6., , Random
