Heat energy questions Flashcards
In solids, heat transfer takes place primarily due to
conduction
Which of these substances are all poor conductors of heat?
Air and plastic
Which of these are both good conductors of heat?
Gold and copper
Handles of cooking pans should be made of a material that
does not conduct heat well
A marble tile would feel cold as compared to a wooden tile on a winter morning. This is because the marble tile
is a better conductor of heat than the wooden tile
To measure temperature I use a
thermometer
Temperature is measured in
degrees Celsius
When the thermometer _____ , the liquid inside _____ due to _____ .
heats up ; rises ; expansion
Joe places two solid objects in contact with each other. Which property determines the direction of the flow of heat between the two objects?
Temperature of objects
How does heat transfer when you hold an ice cube in your hand?
From your warm hand to the cold ice cube
Hot objects begin to cool as
thermal energy in the object is transferred to the surrounding air
On a hot day, the water in a lake warms up and the temperature increases. How does the movement of the particles change?
Move faster and farther apart
Heat transfer by the collision between particles is called?
conduction
Which type of heat transfer occurs as heat moves in a circular motion in a liquid or gas?
Convection
Which type of heat transfer travels through empty space and does need a medium (particles)?
Radiation
