Properties Of Materials: Hardness Flashcards
0
Q
Give 2 examples of extremely hard materials & what do you use them for
A
Tungsten & steel
Tungsten is used to make drill bits. Steel is used to make vehicles & machinery.
1
Q
Explain the usual way to measure hardness
A
Measure the depth of the dent left in a material after a force has been applied for some time.
2
Q
Why are hard materials useful to us?
A
Because they are used in places that need to withstand extreme pressure such as skyscrapers.
3
Q
What is the hardest naturally known substance?
A
The diamond
4
Q
Give 2 examples of very hard materials:
A
Diamond, steel
5
Q
Give 2 examples of fairly hard materials
A
Copper & plastic
6
Q
Give 2 examples of fairly soft materials
A
Gold & lead
7
Q
Give 2 examples of very soft material
A
Wood & clay
