8665285
Beschreibung
Karteikarten von Mr M Liddle, aktualisiert more than 1 year ago
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Erstellt von Mr M Liddle
vor mehr als 7 Jahre
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| Frage | Antworten |
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List the particles found in an atom
Image:
Atom (image/jpeg)
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Protons, Neutrons and Electrons |
| Identify the mass and charge of an electon | Mass is almost zero Charge is -1 |
| Identify the mass and charge of a proton | Mass is 1 Charge is 1 |
| Identify the mass and charge of a neutron | Mass is 1 Charge is 0 |
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Explain how an insulator is charged
Image:
1 6 Charges 020 (image/gif)
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Rubbing the insulator caused friction which transfers electrons onto, or from, the object. |
| State the charge on an object that has gained electrons |
Negative
Image:
Negative (image/png)
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| State the charge on an object that has lost electrons | Positive |
| Describe the interaction between like charges e.g. positive - positive or negative - negative | Repel |
| Describe the interaction between unlike charges e.g. positive - negative | Attract |
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Explain the process of earthing
Image:
Point 3 Gem (image/jpeg)
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Earthing removes excess charge by allowing electrons to flow onto or from an object |
| Explain the advantages of electrostatic paint sprays and insecticide sprays | The droplets have like charges so they repel and spread out. It will also be attracted to uncharged objects. |
| Describe the dangers of electrostatic charges when refuelling a vehicle | A spark can ignite the fuel causing an explosion |
| Identify the units of charge | |
| Define electric current | The rate of flow of charge or The flow of electrons |
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Identify the type of current supplied by cells and batteries
Image:
4 (image/png)
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Direct current
Image:
Dc Current (image/jpeg)
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| Define the term direct current | The movement of charge in one direction only |
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