Question

please answer my question​

Answer 1

Answer:

1.Periodic motion, in physics, motion repeated in equal intervals of time. Periodic motion is performed,

For eg:-by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave.

2. Air :- Transparent

A piece of rock:- Opaque

Clean water:-Transparent

A wooden board:- Opaque

3.magnetic poles repel each other and unlike magnetic poles attract each other.

Poles of a bar magnet are located at its two ends.

4. We would prefer to eat food in a banana leaf platter. This is because a leaf platter is a harmless substance that can be used to make manure by the process of composting, whereas plastic plates cannot be converted into harmless substances by composting. They remain in the environment and create many problems.

Explanation:

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