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7th Grade Unit 1 Thermal Energy
Test Description: Thermal energy
Instructions: Answer all questions to get your test result.
1) The measure of the average amount of kinetic energy of particles is called
A
mass
B
density
C
temperature
D
volume
2) When thermal energy is transferred by particles touching, it is called
A
conduction
B
rapid delivery
C
radiation
D
convection
3) Heat transfer which occurs in fluids, where warmer fluids rise and cooler fluids sink, is called
A
conduction
B
rapid delivery
C
convection
D
radiation
4) Energy transfer that can occur without the presence of any type of matter is called
A
radiation
B
convection
C
rapid delivery
D
conduction
5) State of matter in which there is no definite shape, but there is a definite volume
A
solid
B
liquid
C
Mississippi
D
gas
6) State of matter with a definite shape and definite volume
A
liquid
B
gas
C
Alaska
D
solid
7) State of matter in which particles have no definite shape and no definite volume
A
Florida
B
solid
C
liquid
D
gas
8) Type of system in which matter cannot leave or enter
A
closed
B
storage
C
open
D
sound
9) When thermal energy is added to a sample of matter, particles ____________ and _________.
A
speed up; spread out
B
slow down; spread out
C
speed up; condense
D
slow down; condense
10) A substance which slows down the transfer of thermal energy is called a(n)
A
particle accelerator
B
conductor
C
particle decelerator
D
insulator
*select an answer for all questions
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