Curriculum
Course: Igcse Physics
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Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

4.2.4 Investigating Conductors and Insulators – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
In a metal, the particles that carry current are
protons
neutrons
atoms
free electrons
2.
In a conductivity test circuit the lamp stays off when the material is
a conductor
a metal
an insulator
graphite
3.
Which of these is the best electrical insulator?
Graphite
Dry plastic
Aluminium
Salt water
4.
Why is a small current in a poor conductor better detected with an ammeter than a lamp?
The lamp needs a certain current to glow
Ammeters are heavier
Lamps have no resistance
A lamp measures only voltage
5.
Why are household cables made of copper covered in plastic?
Copper insulates and plastic conducts
Both conduct
Both insulate
Copper conducts and plastic insulates
6.
Sea water conducts better than pure water because it contains
free neutrons
more protons
dissolved ions
magnetic salt
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Part of 4. Electricity and Magnetism — see every lesson and quiz in this unit.
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