Brass is a very malleable alloy of of copper and zinc, it is used where low friction is required, such as for gears and valves.
Oops!
Check
Okay!
Check
15
What are cast iron's characteristics?
It is hard and brittle and is specifically used for low-stress components (such as engine blocks).
Oops!
Check
Okay!
Check
15
What's steel?
It's an alloy containing iron and other elements (up to 3%), including carbon.
Oops!
Check
Okay!
Check
heart
Other team wins 25 points!
Oops!
gold
Win 50 points!
Okay!
gift
Win 25 points!
Okay!
baam
Lose 20 points!
Oops!
15
Describe aluminium's characteristics.
It’s very lightweight, rust resistant, non-magnetic and a very good thermal and electrical conductor.
Oops!
Check
Okay!
Check
15
For how much metals account in the mass of the entire planet?
About 24%
Oops!
Check
Okay!
Check
15
For how much metals account among all elements?
About 2/3
Oops!
Check
Okay!
Check
15
For what industries are metals fit?
Automotive and metal working
Oops!
Check
Okay!
Check
15
Describe non-ferrous metals.
Non-ferrous metals and alloys do not contain iron and are required for components that need to be lightweight, non-magnetic and heat resistant.
Oops!
Check
Okay!
Check
15
What are steel's characteristics?
Its characteristics change according to the percentage of carbon: mild steel (very high tensile strength), medium carbon steel and high carbon steel (very hard)
Oops!
Check
Okay!
Check
10
What's the most common metal?
Iron
Oops!
Check
Okay!
Check
eraser
Reset score!
Oops!
fairy
Take points!
5
10
15
20
25
fairy
Take points!
5
10
15
20
25
baam
Lose 20 points!
Oops!
15
Describe iron.
It’s malleable, ductile, magnetic and a good conductor of heat.
Oops!
Check
Okay!
Check
seesaw
Swap points!
Oops!
gift
Win 20 points!
Okay!
rocket
Go to first place!
Okay!
baam
Lose 25 points!
Oops!
15
What is aluminium extracted from?
Bauxite
Oops!
Check
Okay!
Check
15
What are some common physical properties of metals?