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Thermal Energy Review
Test Description: Thermal Energy review for post test
Instructions: Answer all questions to get your test result.
1) The total energy of all particles in an object is
A
degrees
B
temperature
C
thermal energy / kinetic energy
D
particle motion
2) The faster the molecules in an object the ______ energy it has
A
can not determine
B
higher
C
equal amount
D
lower
3) The movement of energy will always move from ______ energy to _____ energy.
A
equal, low
B
low, high
C
high, low
D
equal, high
4) Heat is transferred from one particle of matter to another through direct contact.
A
convection
B
radiation
C
light
D
conduction
5) If the temperature outside of a house is higher than inside the house, which direction would energy want to travel?
A
movement in both directions
B
inside of the house to outside
C
no movement, because at equilibrium
D
outside of the house to inside
6) How can you find the average kinetic energy of two different objects touching?
A
Add all of the energy in both object together
B
add all of the energy in both object together and always divide by 10
C
add all of the energy in both objects together and divide by number of total molecules
D
add all of the energy in both objects together and always multiply by 10
7) When molecules/particles have more energy how do they move?
A
move some, then stop
B
never move
C
move faster
D
move slower
8) When molecules/particles have less energy how do they move?
A
move slower
B
never move
C
move some, then stop
D
move faster
9) When an object is hot, the molecules move.....
A
closer together slowly
B
do not move at all
C
closer together quickly
D
further from each other quickly
10) What unit of measurement is energy measured in?
A
joules
B
kelvin
C
Celsius
D
fahrenheit
11) What happens if more energy is added to an object in the ground?
A
the energy of the molecules in the ground decreases
B
the cold energy of the molecules in the ground decreases
C
more molecules combine with the molecules in the ground
D
The energy of the molecules in the ground increases
12) If one object has a temperature of 50C and another is 100C, what is the average if both objects are pushed together?
A
25C
B
100C
C
75C
D
50C
13) What does equilibrium mean?
A
a state in which molecules in an object don't move
B
a state in which molecules phase change from liquid to gas.
C
a state in which an object is in balance
D
a state in which an object is not in balance
14) What happens to molecules in a computer when the temperature of the computer decreases?
A
the energy of the molecules in the computer decreases
B
the computer loses heat molecules
C
the energy of the molecules in the computer increases
D
the cold energy of the molecules in the computer increases
15) What is the direction thermal energy will transfer?
A
Thermal energy will naturally always transfer from high energy to low energy.
B
thermal energy will naturally always transfer from low energy to high energy
C
thermal energy will naturally always transfer in an upward direction
D
thermal energy will naturally always transfer in an downward direction
*select an answer for all questions
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