Curriculum
Course: AS Physics 9702
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Curriculum

AS Physics 9702

1. Physical quantities and kinematics

0/41 Dr Dabour Hub Science Diagram and Course Material

2. Dynamics, forces and pressure

0/46 Dr Dabour Hub Science Diagram and Course Material

3. Work, energy, power and deformation

0/31 Dr Dabour Hub Science Diagram and Course Material

4. Waves and superposition

0/39 Dr Dabour Hub Science Diagram and Course Material

5. Electricity and D.C. circuits

0/49 Dr Dabour Hub Science Diagram and Course Material

7. Circular motion and gravitational fields (A Level)

0/25 Dr Dabour Hub Science Diagram and Course Material

8. Thermal physics (A Level)

0/37 Dr Dabour Hub Science Diagram and Course Material

10. Electric fields and capacitance (A Level)

0/36 Dr Dabour Hub Science Diagram and Course Material

11. Magnetic fields and alternating currents (A Level)

0/46 Dr Dabour Hub Science Diagram and Course Material

12. Quantum and nuclear physics (A Level)

0/44 Dr Dabour Hub Science Diagram and Course Material

13. Medical physics and astronomy (A Level)

0/42 Dr Dabour Hub Science Diagram and Course Material
Quiz

9.3.4 Resistivity – Check yourself

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1.
Unit of resistivity is
Ω
Ω m
Ω m⁻¹
Ω m²
2.
Wire length doubles and diameter doubles. The resistance becomes
same
double
half
one quarter
3.
A 2.0 m wire with A = 2.0 × 10⁻⁷ m² and ρ = 1.0 × 10⁻⁶ Ω m has R of
1.0 Ω
10 Ω
0.10 Ω
100 Ω
4.
An R–L graph's gradient equals
ρ
ρA
ρ/A
A/ρ
5.
Why is nichrome used for heating elements?
Low resistivity
High resistivity and oxidation resistance
It is ohmic only below 1 V
It is magnetic
6.
Resistivity of a metal when heated
falls
rises
unchanged
becomes zero
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