Tag: physics

Quizzes (598) Questions (13441)

Questions Related to physics

Multiple choice physics when current flows precaution with the electrical circuit precautions to be taken while dealing with current electrical safety devices used to protect from shock of electric current

To avoid electric shock:

  1. The insulation of wires must be of good quality

  2. Insulation should be checked from time to time

  3. The appliances must have its metallic case earthed

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To avoid electric shock 

$\rightarrow$ The insulation of wires must be of good quality 
$\rightarrow$ Insulation should be checked from time to time 
$\rightarrow$ The appliances must have its metallic case earthed 

Multiple choice physics some natural phenomena introduction to lightning lightning analysis of natural phenomena
Franklin showed that _______ and the spark from our clothes during winters are the same phenomena. Fill in the blanks.

  1. thunder-storm

  2. earthquake

  3. lightning

  4. rain
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Benjamin Franklin, an American scientist, discovered that lightning and spark from your clothes during winters are same phenomena. Electric spark on large scale is known as lightning.

Multiple choice physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

State whether the given statement is True or False :
To process nitrogen, lightning and other processes help in life existence. 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nitrogen is helpful, as all life is dependent on it. Protein in body is made up of nitrogen. To break nitrogen, huge amount of energy is required. This energy is only provided by natural lightning.

Multiple choice physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

Which of the following causes electric sparks?

  1. Wind blowing and shaking electric poles.

  2. When amber rubbed with fur.

  3. When we take off woollen and polyester clothes.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Electric sparks, small or large, are caused when electric poles are shaken by wind, amber is rubbed with fur and woollen, polyester clothes are taken off.