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

4.1.2 Moments – Check yourself

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1.
The unit of moment is
N
J s
N m−1
N m
2.
A force of 20 N acts 0.50 m from a pivot at right angles to the lever. The moment is
10 N m
40 N m
2.5 N m
20.5 N m
3.
Which force has zero moment about a point?
The largest force
A force whose line of action passes through the point
A force at 90° to the lever
A weight
4.
A 30 N force acts at 30° to a horizontal rod, 0.60 m from the pivot (angle between the force and the rod). The moment is
18 N m
15.6 N m
9.0 N m
7.8 N m
5.
Doubling the distance from the pivot while keeping the force perpendicular and constant
Halves the moment
Quadruples it
Leaves it unchanged
Doubles the moment
6.
A spanner is easier to use with a longer handle because
The force is bigger
The nut weighs less
The moment for a given force is larger
Energy is created
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