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Aqa A level Physics > Materiald > Flashcards

Flashcards in Materiald Deck (11)
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1
Q

What is youngs modulus

A

Stress÷strain and is the energy a material can take per volume

2
Q

Application of youngs modulus

A

Used by engineers to see if materials can withstand sufficient forces

3
Q

What is the stiffness

A

The spring constant

4
Q

What is the youngs modulus equation

A

E=tensile stress/tensile strain= or Fl/eA

5
Q

What is the unit of youngs modulus

A

Nm^-2 or pascals

6
Q

how do u find toungs modulus in stress strain graphs

A

Gradient=youngs modulus in stress strain graph

7
Q

What is elastic limit

A

The point in which a material startd to behave plastically where is cannot go back to its original shape

8
Q

What is Limit of proportionality

A

Point where the material stops obeying hooks law but would still return to orignal shape

9
Q

What is the brittle graph of materials

A

The graph will not expierence deformation but would rather snap

10
Q

What is the equation for stress

A

F/A

11
Q

What is the equation for strain

A

e/l