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WorksheetsLSS Heat
Total questions: 15
Worksheet time: 11mins
What kind of heat transfer happens when the sun is heating your body?
Conduction
Convection
Radiation
Density
The candle will slowly heat the metal rod and transfer the heat directly to the man’s hand
Convection
Radiation
Conduction
Heating a room with a fireplace
Conduction
Convection
Radiation
a fluid becomes less dense, and rises or becomes more dense, and sinks.
Convection
Which of these has the molecules expand most at same heat energy ?
solid
liquid
gas
all of the above
A wooden wheel can be strengthened by putting a tight circle of iron around it.
Which action would make it easier to fit the circle over the wood?
Cooling the iron circle
heating the iron circle
heating the wooden wheel and cooling the iron circle
heating the wooden wheel but not heating or cooling the iron circle
A long thin bar of copper is heated evenly along its length. What happens to the bar?
It becomes lighter
it becomes longer
it becomes shorter
it bends at the ends
Refrigeration is a method of
conduction
convection
radiation
none of these
When a gas is heated keeping it's volume constant, then
pressure changes
temperature changes
both pressure and temperature change
none of these
What is Thermal expansion?
The transfer of thermal energy between materials by the collisions of particles
Is a decrease in a materials size when temperature decreases
An increase in a materials size when temperature increases
Chicken fried rice
SI unit for Temperature scale
Celsius
Kelvin
Rankine
Fahrenheit
