29 Questions
What is the study of forces, fields, and potentials arising from static charges called?
Electrostatics
What phenomenon is described as the discharge of electric charges through the body due to accumulation from rubbing insulating surfaces?
Electric shock
Who is credited with the discovery that amber rubbed with wool or silk cloth attracts light objects?
Thales of Miletus
What does the word 'electricity' derive from?
Greek word for amber
Which type of charges repel each other and which type attract each other?
- charges repel, - charges attract
In which chapter will the topic of static electricity be discussed?
Chapter One
What did the glass rod and wool do when brought close to each other?
Repelled each other
When two plastic rods rubbed with cat’s fur are brought close to each other, what happens?
They repel each other
What did the plastic rod do when brought close to the glass rod?
Attracted the glass rod
When a glass rod is rubbed with silk, what kind of charge does the rod acquire?
Positive charge
What happens when an electrified glass rod is brought in contact with silk?
They neutralize each other's charges
When a glass rod is rubbed with silk, what kind of charge does the silk acquire?
Negative charge
What is the property that differentiates the two kinds of charges?
Polarity of charge
What phenomenon is described as the discharge of electric charges through the body due to accumulation from rubbing insulating surfaces?
Static electricity
Which Greek philosopher is credited with the discovery that amber rubbed with wool or silk cloth attracts light objects?
Thales of Miletus
What does electrostatics deal with?
Study of forces, fields and potentials arising from static charges
What is the study of forces and fields arising from moving charges called?
Electrodynamics
When a glass rod is rubbed with silk, what kind of charge does the silk acquire?
Positive charge
What did the plastic rod and cat’s fur do when brought close to each other after rubbing?
Repelled each other
What can be concluded from the observation that unlike charges acquired by the objects neutralize each other's effect?
The charges were named as positive and negative by Benjamin Franklin.
What is the property that differentiates the two kinds of charges?
Polarity of charge
Why do glass rod and cat's fur repel each other?
Because glass rod acquires a positive charge and cat's fur acquires a negative charge.
What happens when electrified glass rod is brought in contact with silk after being rubbed together?
They neutralize each other's effect.
Which type of charge is conventionally called positive by Benjamin Franklin?
The charge on glass rod
What does it mean for an object to be electrically neutral?
It has no electric charge.
What did scientists conclude after many careful studies about the electrified objects?
There are only two kinds of electric charge.
What happens when two plastic rods rubbed with cat’s fur are brought close to each other?
They repel each other.
What do we call the property of objects like glass or plastic rods, silk, fur, and pith balls acquiring electric charge on rubbing?
Electrification
What kind of charge does an object have when it possesses an excess of electrons?
Negative charge
Test your knowledge of the basic concepts of electric charges and fields with this quiz. Explore phenomena like electric discharge, lightning, and electric shock.
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