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Punjab (PTB) · Chapter test · Free

5th Class General Science Chapter 6 TestLight and Sound

30 marks · 40 minutes · 21 questions. Covers: CHAP 6: Light and Sound.

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5th Class General Science Chapter 6 Test

5th Class · General Science · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. Which object does reflect maximum light?

    1. White paper

    2. Coloured paper

    3. Mirror

    4. Brick wall

  2. Plastic bottle and net curtain are examples of:

    1. Translucent objects

    2. Opaque objects

    3. Transparent objects

    4. Soft substance

  3. When water comes in the way of sound travelling through air:

    1. Sound will stop

    2. Sound will slow down

    3. Sound will become fast

    4. No effect on the speed of sound

  4. How does light travel in air?

    1. In a circle

    2. Along curved path

    3. Along a straight line

    4. In dispersed path

  5. How do astronauts communicate with each other:

    1. Telephone

    2. Whatsapp

    3. Messenger

    4. Radio system

  6. In which of the following sound can not pass:

    1. Solid

    2. Liquid

    3. Gas

    4. Vaccum

  7. The sun light reach on earth in:

    1. 5 minutes

    2. 7 minutes

    3. 8 minutes

    4. 10 minutes

  8. The vibrating body produce:

    1. Light

    2. Movement

    3. Shadow

    4. Sound

  9. Which of the following sounds is called noise?

    1. Sound of a flute

    2. Rusting of leaves

    3. Pressure horn

    4. Chirping of birds

  10. Which of the following have high speed in universe:

    1. Sound

    2. Light

    3. Explosive

    4. Jet aeroplane

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. When is your shadow the shortest and the longest in the sunlight?

  2. What is light?

  3. How shadow is formed?

  4. When a train is moving away from you, will the intensity of its sound increase or decrease?

  5. What is meant by luminous objects?

  6. What is meant by opaque objects?

  7. Write the name of natural sources of light.

  8. The moon is non-luminus like our earth. How does it look luminous to us?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. What do you know about sound, speed of sound and intensity of sound also give two exapmles.

  2. Differentiate between pleasant and unpleasant sounds with examples.

  3. Write notes on transparent, opaque and semi-translecent objects.