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1.5 Forces

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Question 121

A constant thrust force acts on a model rocket, causing its speed to increase.

What would make this constant force produce a greater acceleration in the rocket?

A

decreasing the overall mass of the rocket

B

increasing the surface area of the rocket fins while keeping the same mass

C

increasing the temperature of the rocket's exterior

D

changing the material of the rocket body to a lower density while keeping the same mass

Markscheme

1.5 Forces Questions

  1. IGCSE
  2. /Physics
  3. /1.5 Forces

245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.

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