Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Electricity
249 practice questions
Topics covered
Practice questions
91–100 of 121 · Easy
Question 91
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 92
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 93
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 94
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 95
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 96
1 mark · Easy
Answer and see the solution →State what is meant by an induced charge in the context of static electricity.
Question 97
1 mark · Easy
Answer and check →Which of the following is a benefit of using electrostatic paint spraying on a car body?
- A.It allows the paint to dry much faster.
- B.It uses less paint and ensures even coverage.
- C.It makes the paint more colourful.
- D.It prevents the paint from sticking to the surface.
Question 98
2 marks · Easy
Answer and see the solution →Describe how static electricity can help remove dust from the air in some factories.
Question 99
3 marks · Easy
Answer and see the solution →(a)[1 mark]State what happens to the pieces of paper when a charged plastic ruler is brought close to them.
(b)[2 marks]Explain why this happens.
Question 100
3 marks · Easy
Answer and see the solution →(a)[1 mark]State one use of electrostatic charges in daily life (other than paint spraying or inkjet printers).
(b)[2 marks]Briefly describe how static electricity is useful in the example you have stated.