What is the primary reason for using a metallic element in an electric kettle?

Thermal Conductivity Concepts Assessment

Interactive Video
•
Physics, Science
•
10th - 12th Grade
•
Hard

Aiden Montgomery
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To prevent rusting
To enhance the taste of water
To transfer heat efficiently to the water
To make the kettle lighter
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do metals generally have high thermal conductivity?
They have a high density
They are heavy
They contain delocalized electrons
They are shiny
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit of measurement for thermal conductivity?
Newtons per meter
Amperes per second
Joules per second
Watts per meter Kelvin
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do non-metals transfer heat if not through delocalized electrons?
Through convection currents
Through magnetic fields
Through phonons
Through radiation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does a metal chair feel colder than a wooden table at the same temperature?
Metal has a higher density
Metal reflects more light
Metal has better thermal conductivity
Metal is heavier
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which material would have the lowest thermal conductivity?
Copper
Brick
Styrofoam
Wood
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a vacuum's thermal conductivity value indicate?
It has high thermal conductivity
It has zero thermal conductivity
It has variable thermal conductivity
It has low thermal conductivity
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