@A static charge is applied to the object shown. Where will be the greatest amount of charge be?
#stat
Point Y
Point X
Point Z
@A static charge is applied to the object shown. Where will be the least amount of charge be?
#stat
Point X
Point Y
Point Z
@Electrical charge can be detected by:
An electroscope
An Ohm meter
Van der Graff generator
@Some substances are insulators because:
they do not have any free moving electrons
they don't have any electrons
electrons are easily lost by the substances
@Conductors are substances with:
electrons which are able to move freely
atoms that are able to vibrate
ions only; no electrons
@Charge is measured in:
Coulombs
Volts
Amperes
@A polythene strip has been rubbed with a cloth, and is hung on a string. A second polythene strip, which has also been rubbed, is brought near. What happens?
#rod
The strip on the string moves away
Nothing
The hung strip moves towards the strip
@Two strips are rubbed with a cloth. One is hung on string, and the other brought near it. The hung strip moves towards the other strip. Which statement below is correct?
#rod
The strips are not made of the same material
The strips must be made of the same material
There is no way you can tell anything from this experiment
@Two strips are brought together, and the strip hung on string moves away from the other strip. This shows:
#rod
the rods must have the same charge on them
the rods have opposite charges
neither rod has a charge
@An electroscope is charged (as shown in the diagram). Someone then touches the metal cap (y) and the leaf (x) falls. This shows:
#escope
skin is a conductor of electricity
charge is always conserved
the electroscope loses its charge very quickly
@The electroscope is charged. As a charged rod is brought near the metal cap (y) the leaf (x) falls. This shows:
#escope
the rod has an opposite charge to the electroscope
the electroscope is losing charge
the electroscopes charge must be the same as the rods
@What is the main purpose of a lightning conductor?
To neutralise the charged cloud above it
To provide an easy path to the ground
To attract and safely store a lightning strike
@Where abouts is charge found on an object?
Only on the outside surface
Only on the inside surface
Equally on the outside and inside
@A piece of polythene becomes negatively charged when it is rubbed with a cloth. This happens because: