Thermal Energy Transfer And Density Question Preview (ID: 13344)
Understand And Apply The Three Different Types Of Thermal Energy Transfer As Well As Caluculate Density.
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What provides most of the energy on the Earth?
a) Core
b) Moon
c) Sun
d)
Conduction is the transfer of thermal energy by
a) waves
b) movement through a liquid or gas
c) touch
d)
Convection is the transfer of thermal energy by
a) waves
b) movement through a liquid or gas
c) touch
d)
When a substance is heated (like a gas or a liquid) the molecules move faster causing the substance to expand. As it expands it becomes ______ dense.
a) More
b) Less
c)
d)
As a substance cools, the molecules slow down and contract. The substance becomes _____ dense.
a) More
b) Less
c)
d)
What is heat transfer by the collsion of particles?
a) radiation
b) conduction
c) convection
d)
Why does a warm liquid rise above a cooler liquid?
a) It is more dense.
b) It is less dense.
c) It is the same density.
d)
What is the transfer of heat from one part of a fluid to another?
a) Conduction
b) Convection
c) Radiation
d)
What is the density of a rock with a mass of 10g and a volume of 5 cubic cm?
a) 1g/cm cubed
b) 2g/cm cubed
c) 5g/cm cubed
d)
What is the density of an object with a volume of 30ml and a mass of 150 g?
a) 5 g/ml
b) 10 g/ml
c) 20 g/ml
d)
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