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End Of Course Review #4
Test Description: This is a partial end of course review for the 7th grade. (Most questions related to energy flow)
Instructions: Answer all questions to get your test result.
1) The flow of energy through plants and animals is called ___.
A
the food chain.
B
photosynthesis
2) ___ use(s) devices to control the flow of electricity to do work for us.
A
Electronics
B
Microchips
C
Electricity
D
Transistors
3) ___ are switches that changes the pattern of electrons.
A
electronics
B
microchips
C
electricity
D
transistors
4) Many tiny transistors linked together to control electronics is a(n) ____.
A
transistor
B
electricity
C
microchip
D
electronic
5) The movement of electrons is a form of energy called
A
transistors
B
electronics
C
microchips
D
electricity
6) The science of using natural materials to help us in our lives is technology.
A
false
B
true
7) Energy flow of a PV Cell: from ___ energy to ___ energy.
A
radiant, electrical
B
motion, thermal
C
radiant, thermal
D
chemical, electrical
8) Energy flow of a battery: from ___ energy to ___ energy.
A
chemical, thermal
B
electrical, chemical
C
thermal, chemical
D
chemical, electrical
9) Energy flow of a bicycle: from ___ energy to ___ energy
A
thermal, motion
B
motion, chemical
C
radiant, thermal
D
chemical, motion
10) Energy flow of a wind turbine: from ___ energy to ___ energy
A
motion, electrical
B
thermal, motion
C
electrical, motion
D
motion, thermal
*select an answer for all questions
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