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Edexcel IGCSE Physics 1.17 Force, mass & acceleration

Practise using F = ma with resultant force, mass and acceleration, including rearranging, units and powers of ten.

Syllabus
First assessment 2019
Course
Physics 4PH1

Exam points

  • substitute into F = ma or rearrange it to calculate F, m or a with correct units
  • use resultant force direction to explain why an object accelerates, decelerates or moves upwards
  • combine F = ma with motion data to find a braking acceleration or stopping time

1.17 Force, mass and acceleration question 1

[Maximum number: 5]

Diagram 1 shows some apparatus used to demonstrate the magnetic force on a current-carrying wire in a magnetic field.

Diagram 1

Diagram 1

The wire has a mass of 6.5 g .

There is an upwards magnetic force of 34 mN acting on the wire.

Calculate the acceleration of the wire.
acceleration = m/s2\mathrm{m} / \mathrm{s}^{2}

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