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1.5 Forces

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Question 54

A boat is moving in a straight line across a calm lake. Its motor provides a forward thrust on the boat. A second force of equal size acts on the boat due to water resistance and drag.

Which statement describes what happens to the motion of the boat?

A

The boat speeds up.

B

The boat moves at a constant speed.

C

The boat slows down.

D

The boat changes direction.

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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