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Alloys

Authored by Charles Martinez

Chemistry

10th Grade

NGSS covered

Used 1+ times

Alloys
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

‘Bronze is harder than copper’. Which of the following is the best to explain the statement?

Atoms in bronze are arranged closely packed and less empty spaces.

Layers of atoms in bronze are not easily slide over each other.

Atomic size of copper and tin is different.

Bronze is a mixture of copper and tin

Tags

NGSS.HS-PS1-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the composition of brass?

30% tin and 70% copper

10% tin and 90% copper

30% zinc and 70% copper

10% zinc and 90% copper

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements below is true?

Copper is more ductile than brass

Brass is more malleable than copper

Iron is shinier than stainless steel

Iron is more resistant to corrosion than steel

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An industrial product is made by adding chromium and carbon to iron. The product produced is

I. more malleable than iron

II. more resistant to corrosion than iron

III. is shinier than iron

IV. is harder than iron

II and IV

I, II and III

II, III and IV

I, II, II and IV

Tags

NGSS.HS-PS2-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following mixture forms a light and strong alloy to make the body of a speeding boat?

iron and carbon

Aluminium and copper

Copper and nickel

Tin and lead

Tags

NGSS.HS-ETS1-3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Alloying can harden the metals because

the foreign atoms can prevent layers of atoms from sliding over each other

the foreign atoms produce stronger attractive forces between the metal atoms

the foreign atoms are stronger and harder

the foreign atoms increase the energy of the metal atoms

Tags

NGSS.HS-PS1-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following characteristics belong to pure metals?

I. Ductile

II. Malleable

III. Brittle

IV. Good conductor of electricity

I and II

I and IV

I, II and IV

I, II, III and IV

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