Science Olympiad Class-6 Test Prep-3

Test Preparation on Science Olympiad Class-6 Test Prep-3

1.

A copper bar XY is stroked with a permanent magnet as shown in the diagram. Which of the following statements is correct?

1A south pole will be produced at X and a north pole at y after the stroking.
2XY will be a weak permanent magnet after the stroking.
3The pole on the magnet will be inverted after the stroking.
4The needle of a plotting compass would not point to X after the stroking.

Copper is not a magnetic, thus it cannot be magntised.

2.

Which fiber is used for making artificial fibers?

1Jute
2Cotton
3Polyester
4Rayon

3.

Which of the following fiber is the most cheapest and affordable fiber?

1Cotton
2Silk
3Jute
4All of these

4.

Silk is obtained from an insect called

1silkmoth
2leech
3earthworm
4none of these

5.

The cleaning of wool fibers with the help of mild detergents and chemicals is called

1Shearing
2Scouring
3Ginning
4Rearing

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