Question 21
FThe Figure shows a diver standing at the end of a diving board. The other end of the board is bolted to a concrete support. The board bends.
Figure
a.[3]
The weight of the diver acts downwards on the end of the board.
Explain why the board bends instead of moving downwards as a whole.
b.[1]
The diver jumps off. The board returns to its original shape.
Give the name of this type of distortion.
c.[2]
After many years of use, the end of the board droops downwards even when no one is standing on it.
Explain what has happened to the board.
d.[2]
A sponge can be squashed between two hands.
State the directions of the two forces that compress the sponge.
15.1 Forces and springs Questions
102 exam-style questions on Edexcel GCSE Physics 15.1 Forces and springs, covering 15.1.1 Elastic and inelastic distortion, 15.1.2 The spring constant, 15.1.3 Work done in stretching a spring, and 15.1.4 Linear and non-linear force–extension. Each one has a worked solution and a mark scheme showing where the marks go.