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Questions and Answers
What is the function of the gold-leaf electroscope?
What is the function of the gold-leaf electroscope?
- To detect charge on a body (correct)
- To measure the volume of a body
- To measure the weight of a body
- To detect the presence of gold in a body
How are material bodies normally in terms of charge?
How are material bodies normally in terms of charge?
- Electrically neutral with unbalanced charges
- Electrically neutral with balanced charges (correct)
- Negatively charged
- Positively charged
What causes the divergence of the gold leaves in the electroscope?
What causes the divergence of the gold leaves in the electroscope?
- The weight of the leaves
- The surface tension of the leaves
- The presence of glue on the leaves
- Charge flowing onto the leaves when a charged object touches the metal knob (correct)
How can a body be charged positively?
How can a body be charged positively?
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What is essential to electrify a neutral body?
What is essential to electrify a neutral body?
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Study Notes
Electroscopes and Charging Bodies
- The gold-leaf electroscope measures the presence and magnitude of electric charge on an object.
- Material bodies are normally electrically neutral, meaning they have an equal number of positive and negative charges.
Charging Bodies
- A body becomes negatively charged when it gains electrons, causing the gold leaves in the electroscope to diverge (move away from each other).
- A body becomes positively charged when it loses electrons, also causing the gold leaves to diverge.
- To electrify a neutral body, it is essential to bring it into contact with another body that has a surplus or deficiency of electrons.
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Description
This quiz explores the gold-leaf electroscope, a simple apparatus used to detect charge on a body. It also discusses the acquisition of charge by material bodies and explains how all matter is made up of atoms and/or molecules.
