Page 202 - New Medley 3 Semester 2

REMEMBER THESE TERMS

Noise : Irritating and unpleasant sounds
Vibrate : To move rapidly with small movements
Light : A type of energy
Artificial : Man-made
Music : Soft and pleasant sounds

Check Your Study
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A. Tick () the correct answers.
1. Light is needed to

(a) see the things around (b) hear the sounds

(c) dry the oor (d) dry the clothes
2. Sound is produced by

(a) bigger objects (b) coloured objects

(c) vibrating objects (d) smaller objects

3. A push or a pull is a form of

(a) force (b) music

(c) pollution (d) noise

B. Write True or False.

1. A stone is a luminous object.

2. We can see objects even in complete darkness.

3. Musical sounds are unpleasant and irritating.

4. When we li our schoolbag, a force is applied on it.
C. Answer these questions.

1. What is a luminous object?

2. What do you mean by noise?
3. Name three man-made sources of light.

4. How can we reduce noise pollution?

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