GCSE-Hooke's Law Flashcards
1
Q
Statement of Hooke’s Law
A
The extension of a spring is directly proportional to the applied force causing it provided the limit of proportionality is not exceeded.
2
Q
Equation for Hooke’s Law
A
F = ke
3
Q
The name for k
A
The spring constant
4
Q
The unit for k
A
N/m if e is in m
N/cm if e is in cm
N/mm if e is in mm
5
Q
The limit of proportionality is …?
A
the point at which stretching stops obeying Hooke’s Law.
6
Q
What does a graph of F against e look like for a spring obeying Hooke’s Law?
A
A straight line through the origin with positive gradient.
7
Q
How can you find k from a graph of F against e?
A
k = the gradient of the line
8
Q
How to calculate the total spring length from the extension.
A
Total Length = Unstretched Length + e
