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Component 2 Electricity and the Universe

Quick questions on Gravitational and electric fields: Newton's law, Coulomb's law, field strength and potential - Eduqas A-Level Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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State Newton's law of gravitation. [1 mark]
What is q2?
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Find the gravitational field strength 2.0×107 m2.0 \times 10^{7}\ \text{m} from the centre of a planet of mass 5.0×1024 kg5.0 \times 10^{24}\ \text{kg} (G=6.67×10−11G = 6.67 \times 10^{-11}). [2 marks]
What is q3?
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State the key difference between gravitational and electrostatic forces. [1 mark]

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