Which of the following is a fundamental particle?
Answer and explanation
Correct answer: C. An electron
- Step 1: Protons and neutrons are made from quarks.
- Step 2: Electrons are leptons and have no known internal structure.
Answer
An electron.
Why not the others: A proton: this is made of quarks. A neutron: this is made of quarks. A nucleus: this is made of nucleons.
Practise more Electricity and Further Mechanics.
Free questions with an explanation for every one, and full timed Scottish Highers mock tests.
More Electricity and Further Mechanics questions
- A cell of EMF 6.0 V and internal resistance 0.50 Ω supplies a current of 2.0 A. What is the terminal potential difference?
- A battery has EMF 12 V. When it supplies 3.0 A the terminal p.d. is 10.5 V. What is the internal resistance?
- A 470 µF capacitor is charged to 12 V. How much charge is stored?
- How much energy is stored in a 470 µF capacitor charged to 12 V?
- The mains supply has an r.m.s. voltage of 230 V. What is the peak voltage?
- Which type of semiconductor is made by doping silicon with phosphorus, which has five outer electrons?