Metaller Flashcards

1
Q

What are the three main types of metals?

A

Ferrous, non-ferrous, and alloy metals.

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2
Q

True or False: Metals are generally good conductors of electricity.

A

True.

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3
Q

Fill in the blank: Metals are typically characterized by their __________.

A

luster.

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4
Q

What property allows metals to be drawn into wires?

A

Ductility.

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5
Q

Which metal is known for its high corrosion resistance?

A

Stainless steel.

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6
Q

What is the term for metals that can be hammered or pressed into shapes without breaking?

A

Malleability.

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7
Q

Multiple choice: Which of the following is a property of metals? A) Brittle B) Ductile C) Non-conductive

A

B) Ductile.

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8
Q

What is the primary reason metals have high melting points?

A

Strong metallic bonds.

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9
Q

True or False: All metals are magnetic.

A

False.

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10
Q

What property makes metals suitable for construction materials?

A

Strength.

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11
Q

Fill in the blank: The ability of metals to conduct heat is known as __________.

A

thermal conductivity.

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12
Q

Which metal is the most abundant in the Earth’s crust?

A

Aluminum.

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13
Q

Multiple choice: Which of the following is a non-ferrous metal? A) Iron B) Copper C) Steel

A

B) Copper.

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14
Q

What is the term for the ability of a metal to resist deformation?

A

Hardness.

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15
Q

True or False: Metals typically have a low density.

A

False.

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16
Q

What is the significance of the term ‘alloy’ in relation to metals?

A

An alloy is a mixture of two or more metals.

17
Q

Fill in the blank: Metals are typically __________, meaning they can be polished to a shiny surface.

A

lusterous.

18
Q

Which metal is commonly used for electrical wiring due to its excellent conductivity?

A

Copper.

19
Q

What property of metals allows them to be used in making tools?

A

Toughness.

20
Q

Multiple choice: Which metal is known for being lightweight and strong? A) Lead B) Titanium C) Gold

A

B) Titanium.

21
Q

True or False: Metals can be both brittle and ductile.

A

True.

22
Q

What is the term for the process of removing impurities from metals?

A

Refining.

23
Q

Fill in the blank: The __________ of a metal is a measure of its ability to withstand scratches.

A

hardness.

24
Q

What is the main characteristic that differentiates ferrous metals from non-ferrous metals?

A

Ferrous metals contain iron.

25
Q

Multiple choice: Which of the following metals is not used in construction? A) Steel B) Lead C) Gold

A

C) Gold.

26
Q

What is the effect of temperature on the conductivity of metals?

A

Conductivity decreases with increasing temperature.