Precautions to be followed while taking measuring length.
i) Place the ruler along the length of the object. ii) If the zero mark is not clear use any other full mark of the scale iii) Correct position of the eye
20
Identify type of motion. A) Motion of mosquito B) String of a guitar C) Throwing a ball
A) Random Motion B) Oscillatory/Vibratory Motion C) Curvilinear Motion
10
Object being at rest-Explain
An object is said to be at rest if it does not change its position with respect to its surroundings with time.
10
Object in motion-Explain
An object is said to be in motion if the position changes with respect to it surrounding and time.
10
Assertion A: Motion of moon around the earth is a circular motion. Reason R: In a circular motion, the distance of object from a fixed point remains the same. Options: A) Both A and R are true and R is the correct explanation of A. B) B
Correct Answer: A (Both A and R are correct and R is correct explanation of A.)
20
Name any two non standard unit of measurement.
Handspan and Footspan
10
Name the unit of length, which you would like to use while expressing the distance between Delhi and Lucknow.
