WorksheetsPOP QUIZ_THERMAL ENERGY TRANSFER
Total questions: 25
Worksheet time: 27mins
What is defined as a measure of the average kinetic energy of the particles in a sample of matter?
Temperature
Heat
Specific Heat
Mechanical Energy
A lamp has been switched on for a while. A girl, who is sitting beside it, begins to feel its heat. This heat transfer is largely due to ______.
conduction from the lamp through the air to the girl
convection of the air heated by the lamp
free electron diffusion from the lamp to the girl
radiation from the lamp to the girl
Certain physical characteristics of a polar bear help it to reduce heat loss in winter. Choose the correct characteristics from the list below.
1. Its white coat reduces heat loss by radiation.
2. A layer of fat under its skin reduces heat loss by conduction.
3. The thick fur reduces heat loss by convection.
1 and 2 only
1 and 3 only
2 and 3 only
All of the above
Transfer of energy by electromagnetic waves is called
conduction
convection
radiation
infrared proton rays (sounds cool, but I made it up so don't pick this one)
The radiator in a car is made of metal because it is a ______________________.
it is a good absorber of heat
it is a good emitter of heat
It is a good conductor of heat
It is a good insulator of heat
The radiator in a car is painted black in colour because it is a __________________.
good absorber of heat
good emitter of heat
good conductor of heat
good insulator of heat
What is the purpose of including the polystyrene foam inside the walls of the refrigerator?
It is a poor conductor of heat and reduce heat lost from the refrigerator
It is a poor conductor of heat and reduce heat gained by the refrigerator
It is a poor absorber of heat and reduce heat lost from the refrigerator
It is a poor absorber of heat and reduce heat gained by the refrigerator
What is the purpose of including the vacuum between the walls of the thermos flask?
It prevents heat lost by radiation.
It prevents heat lost by conduction.
It prevents heat lost by conduction and convection.
It prevents heat lost by conduction, convection and radiation.
The objects that are conductors are shown in numbers ….
1, 2, and 4
2, 4, and 5
2, 5, and 7
4, 6, and 7
My mom bought some fish crackers yesterday. Before she fries them, she dries the fish crackers under the Sun. What kind of heat transfer happened in the process of drying the fish crackers?
radiation
convection
conduction
reformation
When we want to open the cover of this pan, we can use ….
cloth
glass
nothing
bare hand
When the 2nd floor of a house is warmer than the 1st floor of a house is heat transfer through
