# NCERT Class VI Science Solutions: Chapter 10 – Motion and Measurement of Distance Part 3

Question 9:

You are provided three scales A, B, and C as shown in fig. to measure a length of 10 cm.

For the correct measurement of the length you will use the scale.

1. A only

2. B only

3. C only

4. Any of the three scales

Question 10:

Correct the following.

1. The motion of a swing is an example of rectilinear motion.

2. 1 m = 1000 cm

1. The motion of a swing is an example of periodic motion.

Or

The motion of a swing is not an example of rectilinear motion.

2. 1 m = 100 cm

Question 11:

Fill in the blanks.

1. Motion of an object or a part of it around a fixed point is known as _________ motion.

2. A body repeating its motion after certain interval of time is in __________ motion.

3. In rectilinear motion, object moves _________ a __________ line.

4. SI unit of length is _________.

1. Motion of an object or a part of it around a fixed point is known as circular motion.

2. A body repeating its motion after certain interval of time is in periodic motion.

3. In rectilinear motion, object moves straight an along line.

4. SI unit of length is metre.

Question 12:

Write one example for each of the following type of motion.

1. Rectilinear

2. Circular

3. Periodic

4. Circular and periodic