M&P chapter 3

Question 1

The mass of an engineering material per unit of volume is also known as:

Answer 1

Density

Question 2

The thermal energy required to raise the temperature of a unit mass by one degree
measure by Celsius (°C), kelvin (K), or Fahrenheit (°F) is known as:

Answer 2

Specific heat

Question 3

The quantity of heat transmitted per unit area
by a material of a given thickness and temperature gradient is known as:

Answer 3

Thermal conductivity

Question 4

In general, materials with high melting temperatures and strong bonds between atoms
have a ____ than materials with lower melting points and weaker bonds between
atoms.

Answer 4

Lower coefficient of thermal expansion

Question 5

Electrical conductivity is an expression of how well materials conduct electrical current. Materials that can conduct electricity under
certain circumstances and not others are called:

Answer 5

Semiconductors

Question 6

Electrical conductivity is an expression of how well materials conduct electrical current. Materials that are covalently bonded where the electrons are not free to move about to conduct electricity are called:

Answer 6

Resistors

Question 7

Materials that exhibit a strong attraction to magnetic fields and are able to retain their
magnetic properties even after the magnetic field
has been removed are referred to as:

Answer 7

Ferromagnetic

Question 8

Which of the following materials is considered
to be diamagnetic?

Answer 8

Copper

Question 9

Material that is clear and allows light to pass through is considered:

Answer 9

Transparent

Question 10

Material that is cloudy and only allows part of the light to pass through is considered:

Answer 10

Translucent