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2.3 Forces in action

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Question 33
H

A student investigates a spring by adding masses one at a time and measuring the extension each time.

Which method gives the most accurate value for the spring constant?

[1]
A

Use one large mass and divide its weight by the extension

B

Repeat one reading three times and calculate the mean extension

C

Plot force against extension and find the gradient of the straight part

D

Plot force against extension and find the gradient of the whole line

Markscheme

2.3 Forces in action Questions

  1. GCSE
  2. /Physics
  3. /2.3 Forces in action

46 exam-style questions on OCR GCSE Physics 2.3 Forces in action, covering 2.3.1 Stretching, bending and compressing, 2.3.2 Elastic and plastic deformation, 2.3.3 Force and extension of a spring, 2.3.4 Linear and non-linear force-extension behaviour, 2.3.5 The spring constant, 2.3.6 Work done in stretching, 2.3.7 Gravitational fields, 2.3.8 Weight and gravitational field strength, 2.3.9 Acceleration in free fall, 2.3.10 Relating force, mass and gravitational field strength, 2.3.11 Forces causing rotation, 2.3.12 The moment of a force, 2.3.13 Levers and gears, 2.3.14 Pressure in fluids, and 2.3.15 Pressure, force and contact area. Each one has a worked solution and a mark scheme showing where the marks go.

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