Test P3 Flashcards
1
Q
What makes a material have elastic behaviour?
A
If it goes back to its original shape
2
Q
Unit for spring constant
A
N/m
3
Q
What is plastic behaviour?
A
The same as inelastic stretching
4
Q
What’s another word for elastic limit?
A
Limit of proportionality
5
Q
Newton’s first law
A
INERTIA
A resultant force is needed to make something start moving, speed up, slow down or change in direction
6
Q
Newton’s 2nd Law
A
F = ma
A = m/s^2
M=kg
F=resultant force
A force applied to an object will change its speed in the same direction as the force
7
Q
Newton’s 3rd Law
A
For each force there’s another force acting in the opposite direction with the same strength
For every action there’s an equal and opposite reaction
8
Q
acceleration is —- to mass
A
Inversely proportional
