Tag: some natural phenomena

Quizzes (10) Questions (151)

Questions Related to some natural phenomena

Multiple choice physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging

Rub an empty ball pen refill on a polythene sheet and hold it on top of small pieces of paper. What will be your observation?

  1. Pieces of paper are attracted.

  2. Pieces of paper are repelled.

  3. Pieces of paper are neither attracted nor repelled.

  4. Pieces of paper are either attracted or repelled.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When refill is rubbed on polythene it acquires small electric charges. Due to presence of these charges, pieces of paper gets attracted.

Multiple choice physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

What is the frictional order of the following materials on rubbing:

ebonite, glass rod, wool, plastic

  1. Wool, glass rod, ebonite, plastic

  2. Glass rod, wool, plastic, ebonite

  3. Wool, glass rod, plastic, ebonite

  4. Glass rod, wool, ebonite, plastic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When any of these materials are rubbed together, the one in higher order gets positive charge (+) and the one in the lower order gets negative charge (-). The correct frictional order is: glass, wool, ebonite and plastic.

Multiple choice physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

What kind of electric charge is acquired on a glass rod when it is rubbed with silk cloth?

  1. Positive charge

  2. Negative charge

  3. Partially positive charge

  4. Partially negative charge
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

By convention, glass acquire higher order than silk as losses electron. So, on rubbing, glass acquires positive charge and silk acquires negative charge.

Multiple choice physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

When an object is rubbed by another, the objects get charged - one as positive and another as negative. In electrostatic series:

  1. the one being positively charged comes first.

  2. the one being negatively charged comes first.

  3. both the objects come together.

  4. objects appear as per their atomic numbers.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When two bodies are rubbed for charging, the one acquiring positive charge comes first, on a higher position, in electrostatic series. From the series, it may be interpreted that if two objects are rubbed with each other, the one coming higher in the series will acquire positive charge and the other coming lower in the series will acquire negative charge.