Curriculum
Course: IB Physics SL
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Curriculum

IB Physics SL

Theme A — Space, Time and Motion

0/80 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/87 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/60 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/41 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/59 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/54 Dr Dabour Hub Science Diagram and Course Material
Quiz

B.5.4 Electrical Conductors and Insulators – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Which statement about metals is correct?
Resistance decreases as temperature rises
Free electrons carry the current
Positive ions carry the current
They have no charge carriers at low temperature
2.
As the temperature of a semiconductor increases, its resistance
increases
decreases
stays constant
becomes infinite
3.
An insulator has a high resistivity because
it has almost no mobile charge carriers
it has a very large number of free electrons
its atoms are negatively charged
it has fast-moving electrons
4.
A rod gains 5.0 × 1011 electrons. Its charge is
+8.0 × 10−8 C
−3.1 × 1030 C
+3.1 × 1030 C
−8.0 × 10−8 C
5.
Which material is a good insulator?
Copper
Graphite
Polythene
Salt solution
6.
Two wires of equal dimensions carry equal currents. Wire X has a smaller carrier density than wire Y. Compared with Y, the carriers in X must
drift more slowly
carry less charge each
be positive
drift faster
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Part of Theme B — The Particulate Nature of Matter — see every lesson and quiz in this unit.
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