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WorksheetsPhysics and Thermodynamics
Total questions: 27
Worksheet time: 54mins
When thermal energy is added to a substance, the substance's particles move:
More rapidly at an increased distance from each other.
More rapidly with less distance between each other.
More slowly with a greater distance between each other.
More slowly with a reduced distance between each other.
Transfer of heat by means of electromagnetic waves
conduction
convection
radiation
Transfer of heat by contact and collisions between the molecules in a substance.
conduction
radiation
convection
The average kinetic energy of the atoms or molecules in a substance is directly related to
heat
specific heat capacity
temperature
Brownian Motion
What happens on a molecular level when heat is removed from an object?
the temperature decreases and the molecules move faster
the temperature increases and the molecules move slower
the temperature increases and the molecules molecules move faster
the temperature decreases and the molecules move slower
Why does ice float?
Due to convection currents
It is more dense than water.
It is less dense than water.
Which of the following is one reason Earth's tectonic plates to move?
energy from the Sun
magnetic Pole Reversal
convection currents in the mantle
faults in Mountain Ranges
Name the type of heat transfer shown in the picture.
convection
conduction
radiation
In which state of matter will there be the LARGEST space between molecules?
Solid
Liquid
Gas
How do gases behave in a sealed container?
Cluster together
form a solid
They take the shape of their container
leak out
Which state of matter has particles that move the least/slowest?
solid
water
gas
