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. TEACHERS: click here for quick copy question ID numbers.

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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