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9702/43

Physics 9702/43 — October/November 2020

Cambridge A-Level · A Level Structured Questions · worked solutions for every part, with the mark scheme

12
questions
100
marks
120
minutes

Topics Medical Physics · Electric Fields · Magnetic Fields · Gravitational Fields · Thermodynamics · Oscillations · +5 more

Q1Gravitational FieldsFree sample

Answer all the questions in the spaces provided.

(a)
(i)

State what is meant by a field of force.

2M
(ii)

Define gravitational field strength.

1M
(b)

An isolated planet may be assumed to be a uniform sphere of radius 3.39×106 m3.39 \times 10^6\ \text{m} with its mass of 6.42×1023 kg6.42 \times 10^{23}\ \text{kg} concentrated at its centre.

Calculate the gravitational field strength at the surface of the planet.

field strength = ______ N kg−1\text{N kg}^{-1}

3M
(c)

Calculate the height above the surface of the planet in (b) at which the gravitational field strength is 1.0%1.0\% less than its value at the surface of the planet.

height = ______ m\text{m}

3M

The rest of this paper

11 more questions
  • Q2Thermodynamics9M
  • Q3Oscillations9M
  • Q4Medical Physics8M
  • Q5Electric Fields9M
  • Q6Capacitance7M
  • Q7Electronics · Temperature6M
  • Q8Magnetic Fields · Electric Fields8M
  • Q9Magnetic Fields9M
  • Q10Medical Physics8M
  • Q11Quantum Physics9M
  • Q12Nuclear Physics9M
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