15 Questions
What type of electric charge is possessed by protons?
Positive charge
What did Benjamin Franklin name the two kinds of electric charges?
Positive and negative charges
When a comb is run through hair on a dry day, what does it attract?
Bits of paper
What happens when materials are electrified or become electrically charged?
They attract or repel each other
What is the consequence of rubbing an inflated balloon with wool?
It adheres to a wall
What happens when a glass rod rubbed with silk is brought near a negatively charged rubber rod?
They attract each other
What does the observation of two charged rubber rods (or two charged glass rods) repelling each other indicate?
The rubber and glass have the same type of charge
What is an important aspect of electricity arising from experimental observations?
Electric charge is always conserved in an isolated system
What happens when one object is rubbed against another?
Charge is transferred from one object to the other
What are electrical conductors?
Materials in which some of the electrons are free electrons that can move relatively freely through the material
What category do materials such as glass, rubber, and wood fall into?
Insulators
What happens when electrical insulators are charged by rubbing?
Only the area rubbed becomes charged, and the charged particles can move to other regions of the material
What happens when good electrical conductors are charged in some small region?
The charge readily distributes itself over the entire surface of the material
What process is used to charge a conductor by induction?
Bringing a charged object near it
What are semiconductors?
Materials with electrical properties between insulators and conductors
Test your knowledge of the properties of electric charges with this quiz prepared by Dr. Mohamed Hasabelnaby. Explore concepts such as electric forces, attraction, and simple experiments related to electric charges.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
