Question

Q.6 Define the following.

1. Lubricants

Q.5 Name the following. (any two)

1. The sound producing organ in human.

2. A type of friction exists, when a book kept on the cylindrical pencil and pushed it.

3. Device used to check the electric current.

Q.4 Give one example for the following. (any two)

1. Stretched string musical instrument.

2. Liquid that conducts electricity.

3. Sliding friction.





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Answer 1

Answer:

Q5 1) is larynx or voice box

Answer 2

Answer:

6.

1 ans:

Lubricants are substances that helps to reduce friction.

5.

1. Larynx is the sound producing organ in humans.

3. An ammeter is a device used to check electric current.

4.

2. Lemon juice

3. A car sliding on ice.