Chapter 9 Motion and Types of Motion Solutions

Maharashtra State Board Class 6 Science Solutions Chapter 9 Motion and Types of Motion

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

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

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

Question b.
The motion of an aeroplane on the runway before take off is …………..
Answer:
linear

Question c.
The kite looking for its prey flies with …………. motion in the sky.
Answer:
circular

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

3. How are we different?.

Question a.
Oscillatory motion and Linear motion.
Answer:

Question b.
Linear motion and Random motion
Answer:

Question c.
Random motion and Oscillatory motion
Answer:

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.

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.

Question e.
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.

5. Answer the following questions in your own words.

Question a.
Which types of motion are seen in birds flying in the sky?
Answer:

Question b.
Write in detail about your experience of various types of motion while riding a bicycle on a road.
Answer:

6. Complete the puzzle using words for types of motion:

Question a.
Complete the puzzle 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.

Answer:

Activity: