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Motion and forces
Quick questions on Newton's laws of motion and resultant force - CCEA GCSE Physics
5short 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 resultant force?Show answer
For forces along one line, add forces in one direction and subtract those in the opposite direction.
What is newton's third law?Show answer
A third-law pair always has the same type of force (for example both gravitational, or both contact forces), the same size, and opposite directions, but acts on two different bodies. This is different from balanced forces in Newton's first law, which act on the same body and add to zero. Telling these apart is a common exam discriminator.
What is q1?Show answer
State Newton's first law. [1 mark]
What is q2?Show answer
A resultant force of acts on a mass. Find the acceleration. [2 marks]
What is q3?Show answer
Forces of forward and backward act on a box. State the resultant force. [1 mark]
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