Podcast
Questions and Answers
What type of electric charge is possessed by protons?
What type of electric charge is possessed by protons?
- Opposite charge
- Neutral charge
- Positive charge (correct)
- Negative charge
What did Benjamin Franklin name the two kinds of electric charges?
What did Benjamin Franklin name the two kinds of electric charges?
- Left and right charges
- Up and down charges
- Positive and negative charges (correct)
- Forward and backward charges
When a comb is run through hair on a dry day, what does it attract?
When a comb is run through hair on a dry day, what does it attract?
- Feathers
- Rubber bands
- Bits of paper (correct)
- Metal objects
What happens when materials are electrified or become electrically charged?
What happens when materials are electrified or become electrically charged?
What is the consequence of rubbing an inflated balloon with wool?
What is the consequence of rubbing an inflated balloon with wool?
What happens when a glass rod rubbed with silk is brought near a negatively charged rubber rod?
What happens when a glass rod rubbed with silk is brought near a negatively charged rubber rod?
What does the observation of two charged rubber rods (or two charged glass rods) repelling each other indicate?
What does the observation of two charged rubber rods (or two charged glass rods) repelling each other indicate?
What is an important aspect of electricity arising from experimental observations?
What is an important aspect of electricity arising from experimental observations?
What happens when one object is rubbed against another?
What happens when one object is rubbed against another?
What are electrical conductors?
What are electrical conductors?
What category do materials such as glass, rubber, and wood fall into?
What category do materials such as glass, rubber, and wood fall into?
What happens when electrical insulators are charged by rubbing?
What happens when electrical insulators are charged by rubbing?
What happens when good electrical conductors are charged in some small region?
What happens when good electrical conductors are charged in some small region?
What process is used to charge a conductor by induction?
What process is used to charge a conductor by induction?
What are semiconductors?
What are semiconductors?
