4.2.1. Electric charge
A subsection of Physics, 0625, through 4. Electricity and magnetism
Listing 10 of 186 questions
Complete the three sentences below, to describe attraction and repulsion in electrostatics. Two positive charges . Two negative charges . A positive charge and a negative charge . A positive charge and an uncharged conductor . A charged plastic sphere is hanging on an insulating thread. When a negatively-charged rod is brought near, the sphere and thread move to the position shown in . – rod insulating thread charged sphere – – – – – – – – – – – – State the sign of the charge on the sphere. Describe what happens to the sphere and thread when the rod is moved far away from them. State the name of a material that is an electrical conductor.
0625_m15_qp_22
THEORY
2015
Paper 2, Variant 2
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State what is meant by an electric field. shows a small, positively charged sphere. + On , sketch the pattern of the electric field in the space around the sphere. shows a metal sphere on an insulating support. A student has available two rods, one charged positively and one charged negatively. Using one of these rods, she gives the sphere a uniform negative charge by induction. State which rod she chooses, and describe the procedure she follows. .
0625_m15_qp_32
THEORY
2015
Paper 3, Variant 2
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State what is meant by the direction of an electric field. shows a pair of oppositely-charged horizontal metal plates with the top plate positive. + + + + + + + + + + + + + – – – – – – – – – – – – – The electric field between the plates in is uniform. Draw lines on to represent this uniform field. Add arrows to these lines to show the direction of the field. shows a very small negatively-charged oil drop in the air between a pair of oppositely charged horizontal metal plates. The oil drop does not move up or down. – oil drop Suggest, in terms of forces, why the oil drop does not move up or down. Without losing any of its charge, the oil drop begins to evaporate. State and explain what happens to the oil drop.
0625_m16_qp_42
THEORY
2016
Paper 4, Variant 2
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shows the apparatus for an experiment on electrostatics. aluminium clamp and stand iron nail cotton thread plastic stirrup polythene strip Identify the pieces of equipment that are electrical conductors and those that are electrical insulators. Draw a line from each piece of equipment to the correct box. aluminium clamp and stand plastic stirrup iron nail cotton thread conductor insulator State and explain how the polythene strip can be given a negative charge. Describe how the apparatus in could be used to demonstrate that the polythene strip has a negative charge.
0625_m19_qp_32
THEORY
2019
Paper 3, Variant 2
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Questions Discovered
186