Force and Motion Book Back Questions & Answers
Unit 2 > Science > Class 6 > Samacheer Kalvi - English Medium
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1. Unit of speed is
a. m
b. s
c. kg
d. m/s
Correct answer: d. m/s
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2. Oscillatory motion among the following is
a. Rotation of the earth about its axis
b. Revolution of the moon about the earth
c. To and fro movement of a vibrating string
d. All of these.
Correct answer: c. To and fro movement of a vibrating string
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3. The correct relation among the following is
a. Speed = distance time
b. Speed = distance / time
c. Speed = time / distance
d. Speed = 1 / (distance time)
Correct answer: b. Speed = distance / time
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4. Gita rides with her fathers bike to her uncles house which is 40 km away from her home. She takes 40 minutes to reach there. Statement 1 : She travels with a speed of 1 km / minute. Statement 2 : She travels with a speed of 1 km/hour
a. Statement 1 alone is correct
b. Statement 2 alone is correct.
c. Both statement 1 and 2 are correct.
d. Neither statement 1 nor statement 2 is correct.
Correct answer: a. Statement 1 alone is correct
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1. To and fro motion is called oscilltory motion.
Correct answer: True
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2. Vibratory motion and rotatory motion are periodic motions.
Correct answer: False
Correct Statement: Vibratory motion and oscillatory motion are periodic motions
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3. Vehicles moving with varying speeds are said to be in uniform motion
Correct answer: False
Correct Statement: Vehicles moving with varying speeds are said to be in non-uniform motion. (or) Vehicles moving with uniform speeds are said to be in uniform motion.
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4. Robots will replace human in future
Correct answer: False
Correct Statement: Robots will not replace human in future
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1. A bike moving on a straight road is an example of _______ motion.
Correct answer: linear
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2. Gravitational force is a _____ force.
Correct answer: non contact force
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3. Motion of a potters wheel is an example of______motion.
Correct answer: rotatory motion
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4. When an object covers equal distances in equal interval of time, it is said to be in______motion
Correct answer: uniform
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1. kicking a ball : contact force ::falling of leaf :
Correct answer: Non contact force
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2. Distance : metre :: speed :
Correct answer: metre/second
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3. circulatory motion :: a spinning top :: oscillatory motion :
Correct answer: Swinging of a pendulum
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1. The force which acts on an object without Physical contact with it.______
Correct answer: Non contact force
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2. A change in the position of an object with time_______
Correct answer: Motion
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3. The motion which repeats itself after a fixed interval of time.______
Correct answer: Oscillatory motion
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4. The motion of an object travels equal distances in equal intervals of time._____
Correct answer: Uniform motion
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5. A machine capable of carrying out a complex series of actions automatically______
Correct answer: Robots.
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1. Linear motion
Correct answer: Free fall objects
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2. Curvilinear motion
Correct answer: Throwing ball
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3. Self rotatory motion
Correct answer: Motion of wheel in a cart
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4. Circular motion
Correct answer: Athlete running around a track
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5. Oscillatory motion
Correct answer: Flapping of elephants ear
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6. Irregular motion
Correct answer: Playing Football