14.2 Alloys

Lesson 14.3 Alloys
12-09-2022
1 / 19
volgende
Slide 1: Tekstslide
ChemSecondary Education

In deze les zitten 19 slides, met interactieve quizzen, tekstslides en 1 video.

Onderdelen in deze les

Lesson 14.3 Alloys
12-09-2022

Slide 1 - Tekstslide

Choose an emoji to tell us how you feel today.
😒🙁😐🙂😃

Slide 2 - Poll

REVIEW OF PREVIOUS
 LESSON

Slide 3 - Tekstslide

  • describe an alloy ;
  • state the comparison of alloys and pure metals ;
  • describe the uses of alloys ;
  • identify representations of alloys from diagrams of structure ; and
  • explain in terms of structure how alloys can be harder and stronger.
I can...

Slide 4 - Tekstslide

Slide 5 - Video

_____ is mixture of two or more metals or metal with a non-metal such as carbon.
A
noble gas
B
alloy
C
mixture
D
heterogeneous

Slide 6 - Quizvraag

Which of the following properties DOES NOT describe an alloy?
A
more strength
B
harder than pure metal
C
low resistance to corrosion
D
withstand high temperature

Slide 7 - Quizvraag

Which is more useful?
A
alloys
B
pure metals

Slide 8 - Quizvraag

The regular arrangement of a metal ________ structure is distorted in alloys.
A
lattice
B
complex
C
simple
D
crystal

Slide 9 - Quizvraag

Which of the following alloys is a mixture of copper and zinc?
A
Brass
B
Stainless steel
C
Iron alloys
D
Aluminium alloys

Slide 10 - Quizvraag

Which of the following alloys is a mixture of iron and other elements like chromium, nickel, and carbon?
A
Brass
B
Stainless steel
C
Iron alloys
D
Aluminium alloys

Slide 11 - Quizvraag

Which special property of iron + tungsten iron has?
A
resistance to high temperature
B
resistance to high pressure
C
resistance to electricity
D
resistance to corrosion

Slide 12 - Quizvraag

Which alloy is resistant to corrosion?
A
iron + nickel
B
iron + copper
C
iron + chromium
D
A and C

Slide 13 - Quizvraag

Which of the following alloys is NOT stronger than other alloys but still has a low density and is used in aircrafts?
A
Al + Cu
B
Al + Mn
C
Al + Si
D
Al + Fe

Slide 14 - Quizvraag

Alloys are mixture of substances, they are chemically combined and an alloy is NOT a compound.
A
TRUE
B
FALSE

Slide 15 - Quizvraag

Alloys contain atoms of similar sizes, which distorts the normally regular arrangements of atoms in metals.
A
TRUE
B
FALSE

Slide 16 - Quizvraag

Cite ONE reason why alloys are stronger and much harder than pure metals. (Focus on particle structure.)

Slide 17 - Open vraag

Practice
12-09-2022

Slide 18 - Tekstslide

Rate your understanding of the topic using the scale below.
15

Slide 19 - Poll