NCERT Exemplar · Class 6 · Science

Chapter 10: Motion and Measurement of Distances

Practice each question, then open the answer or worked solution.

Short Answer Questions

4 questions

Q13Written answer

The photograph given as Fig. $10.7$ shows a section of a grille made up of straight and curved iron bars. How would you measure the length of the bars of this section, so that the payment could be made to the contractor?

Show solutionHide solution

Worked solution

Ans: We can see in the given figure that the grille is made up of two types of iron bars, straight and curved. We can use a measuring tape to measure straight iron bars and to measure curved iron bars, we can use thread first and then we can evaluate the result on a scale.

Q14Written answer

Identify the different types of motion in the following word diagram given as Fig. $10.8$.

Show solutionHide solution

Worked solution

Ans:

Q15Written answer

Four children measure the length of a table which was about $2m$. Each of them used different ways to measure it.

i. Sam measured it with a half metre long thread.

ii. Gurmeet measured it with a $15cm$ scale from her geometry

iii. Reena measured it using her hand span.

iv. Salim measured it using a $5m$ long measuring tape.

Which one of them would get the most accurate length? Give reason for your answer.

Show solutionHide solution

Worked solution

Ans: Option (iv) is the correct answer.

Explanation: As Salim is using a standard instrument that is a $5m$ long measuring tape. The measurement will be accurate and it will be easy for Salim to measure the table quickly.

Q16Written answer

Match the events related to motion in Column I with the types of motions given in Column II.

Column I	Column II
a) A moving swing.	i. Periodic motion
b) A movement of tip of the minute hand of a clock in one hour.	ii. Rotational motion
c) A moving wheel of a sewing machine.	iii. Circular motion

Show solutionHide solution

Worked solution

Ans: The correct match is given below:

Column I	Column II
a) A moving swing.	ii. Rotational motion
b) A movement of tip of the minute hand of a clock in one hour.	iii. Circular motion
c) A moving wheel of a sewing machine.	i. Periodic motion

My Cart

Your Cart 0

Chapter 10: Motion and Measurement of Distances

Short Answer Questions