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Thermal Energy Transfer And Density
Test Description: Understand and apply the three different types of thermal energy transfer as well as caluculate density.
Instructions: Answer all questions to get your test result.
1) What provides most of the energy on the Earth?
A
Core
B
Sun
C
Moon
2) Conduction is the transfer of thermal energy by
A
waves
B
touch
C
movement through a liquid or gas
3) Convection is the transfer of thermal energy by
A
waves
B
movement through a liquid or gas
C
touch
4) 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
Less
B
More
5) As a substance cools, the molecules slow down and contract. The substance becomes _____ dense.
A
More
B
Less
6) What is heat transfer by the collsion of particles?
A
conduction
B
radiation
C
convection
7) Why does a warm liquid rise above a cooler liquid?
A
It is the same density.
B
It is less dense.
C
It is more dense.
8) What is the transfer of heat from one part of a fluid to another?
A
Radiation
B
Conduction
C
Convection
9) What is the density of a rock with a mass of 10g and a volume of 5 cubic cm?
A
2g/cm cubed
B
1g/cm cubed
C
5g/cm cubed
10) What is the density of an object with a volume of 30ml and a mass of 150 g?
A
20 g/ml
B
10 g/ml
C
5 g/ml
*select an answer for all questions
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