Flashcards
mock-Static electricity
Cards in this deck (22)
- 1what happens when insulating materials are rubbed against eachotherwhen insulating materials are rubbed against eachother they can become electrically charged e.g when a balloon is rubbed against a jumper
- 2when the materials are rubbed together what does the friction created cause to happen
- 3what happens because the materials are insulatorsbecause the materials are insulators the charge remains on the object
- 4how would this be different with conductorsthis effect would not be seen with conductors-they conduct the charge to earth so it cannot build up
- 5whats an isolated objectan object that has no conducting path to earth is referred to as an isolated object
- 6what happens as the charge on an isolated object increasesas the charge on an isolated object increases, the potential difference between the object and the earth increases
- 7what happens when the potential difference becomes high enougha spark may jump across the gap, from the object to any earthnd conductor near to it
- 8what does the spark created dothis spark discharges the charged object and could be felt as an electric shock
- 9what is dangerous about a spark and what is it used forit could also serve as a source of ignition which can be very dangerous e.g if the spark occurs in a petrol station
- 10give an example of a sparklightning is an example of spark caused when a charge builds up in clouds during a thunderstorm
- 11what kind of forces are electrostatic forcesnon-contact forces .... they can be forces of attraction or repulsion
- 12what happens if a chrtged object is brought next to an uncharged objectit can attract itb
- 13give an example of two objects attracting-charged plastic ruler next to small pieces of paper or water
-perspex rod attracts an ebonite rod - 14—
- 15what happens when objects carry opposite chargesthey will attract
- 16what is an electric fielda charged object creates an electric field around itself. The electric field can be thought of as the area around a charged object the will affect other objects e.g like a magnetic field
- 17what does the strength of the electric field at any point depend on
- 18—
- 19what happens if a second charged object is placed in the fieldif a second charged object is placed in the field it will experience a force. The force gets stronger as the objects get closer together
- 20what can a field diagram help to explain
- 21draw an electric field from an isolated positive charge
- 22draw an electric field diagram for an isolated negative charge
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- GCSE physics new Flashcards on mock-Static electricity, created by ella stokes on 27/11/2017.
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- ella stokes
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