Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Electricity
249 practice questions
Topics covered
Practice questions
181–190 of 249
Question 181
2 marks · Easy
Answer and see the solution →Explain why two strands of hair stand apart from each other when charged by a Van de Graaff generator.
Question 182
3 marks · Easy
Answer and see the solution →A student rubs a plastic rod with a woolen cloth.
(a)[1 mark]State the type of force observed if she then brings the charged rod close to an uncharged small piece of paper.
(b)[2 marks]Explain why this force occurs.
Question 183
1 mark · Easy
Answer and check →Which action would NOT result in a force of attraction or repulsion between two objects?
- A.Bringing two positively charged rods close together
- B.Bringing a negatively charged balloon close to a wall
- C.Bringing an uncharged rod close to another uncharged rod
- D.Bringing a positively charged rod close to a negatively charged rod
Question 184
2 marks · Easy
Answer and see the solution →A neutral metal sphere is suspended by a thread. A negatively charged rod is brought close to, but not touching, the sphere.
(a)[1 mark]Describe what happens to the sphere as the rod is moved closer.
(b)[1 mark]Explain, in terms of charges, why this occurs.
Question 185
2 marks · Easy
Answer and see the solution →A student has two rods: Rod A (positively charged) and Rod B (uncharged).
(a)[1 mark]Predict what happens if Rod A is brought near Rod B and state the type of force involved.
(b)[1 mark]Explain your answer.
Question 186
2 marks · Normal
Answer and see the solution →State what happens when two rods with like charges are brought near each other. Explain why this occurs.
Question 187
3 marks · Normal
Answer and see the solution →A pupil rubs a balloon with a woolen cloth and then holds it next to a wall. The balloon sticks to the wall.
Explain, in terms of charges, why the balloon is able to stick to the wall.
Question 188
1 mark · Normal
Answer and check →Which of the following describes what happens when a positively charged rod is brought near a negatively charged rod?
- A.The rods attract each other.
- B.The rods repel each other.
- C.There is no force between them.
- D.Both rods become neutral.
Question 189
4 marks · Normal
Answer and see the solution →A student hangs a thin strip of aluminium foil from a wooden support. The foil is initially uncharged. She brings a charged rod near it and observes the foil moving towards the rod.
(a)[1 mark]Describe what type of force acts between the charged rod and the uncharged foil.
(b)[2 marks]Explain, in terms of charge, how the uncharged foil is able to be attracted to the charged rod.
(c)[1 mark]State what happens if the foil and the rod become similarly charged and the rod is brought near again.
Question 190
2 marks · Normal
Answer and see the solution →Describe what happens when a student charges a comb by running it through their hair and then brings the comb near small pieces of paper.