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Worksheets8.2 Heat Transfer/Thermal Expansion
Total questions: 18
Worksheet time: 11mins
The transfer of energy through molecules in direct contact is ...
Heat
Conduction
Convection
Radiation
The flow of energy that occurs when a warm fluid rises...
As you touch a hot stove the heat transfers -
from your hand to the stove by conduction.
from the stove to your hand by conduction.
from your hand to the stove by radiation.
from the stove to your hand by radiation.
Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?
Thermal energy is transferred from the spoon to the water by conduction
Thermal energy is transferred from the water to the spoon by conduction.
Thermal energy in the water is transformed into kinetic energy in the spoon by convection.
Thermal energy in the spoon is transformed into kinetic energy in the water by convection.
Convection currents can be observed in ...
liquids
gases
solids
superconductors
The movement of thermal energy from a region of (a) temperature to a region of (b) temperature is called heat.
The rubber that makes up the handle on the pan is considered a thermal ___________________ because thermal energy moves poorly through this material.
conductor
insulator
regulator
resistor
Match the scenarios with the correct type of thermal energy transfer.
The attic is warmer than the basement
Convection
The Sun heating the Earth
Radiation
Your feet getting burned by hot sand
Conduction
Match the scenarios with the correct type of thermal energy transfer.
Frying an egg on a skillet
Conduction
Reheating pizza in the microwave
Radiation
Thunderstorms
Convection
Materials such as metal and wire are good ________________________ because heat can easily transfer through them
Conductors
Insulators
Two objects have different temperatures. Object A has a temperature of 42 degrees and Object B is 17 degrees. Which direction should the energy transfer between Objects A and B?
From Object A to Object B
From Object B to Object A
Energy will not transfer
Energy will transfer both directions
When two substances of the same temperature are in contact with each other, heat will...
not flow
flow from hot to cold
flow from cold to hot
Many objects, such as train tracks and road joints, are specifically designed to allow extra space for (a)
Particles move faster and spread farther apart.
Particles move faster and move closer together.
Particles move slower and spread farther apart.
Particles move slower and move closer together.
Alex noticed that a metal door that sticks on hot days, does not stick when it cools off at night. This is because the metal contracts as it cools, causing the atoms to
(a) and move (b)
