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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
photosynthesis
B
the food chain.
2) ___ use(s) devices to control the flow of electricity to do work for us.
A
Microchips
B
Transistors
C
Electronics
D
Electricity
3) ___ are switches that changes the pattern of electrons.
A
transistors
B
electronics
C
electricity
D
microchips
4) Many tiny transistors linked together to control electronics is a(n) ____.
A
microchip
B
electronic
C
transistor
D
electricity
5) The movement of electrons is a form of energy called
A
microchips
B
electricity
C
electronics
D
transistors
6) The science of using natural materials to help us in our lives is technology.
A
true
B
false
7) Energy flow of a PV Cell: from ___ energy to ___ energy.
A
motion, thermal
B
radiant, electrical
C
chemical, electrical
D
radiant, thermal
8) Energy flow of a battery: from ___ energy to ___ energy.
A
chemical, electrical
B
chemical, thermal
C
thermal, chemical
D
electrical, chemical
9) Energy flow of a bicycle: from ___ energy to ___ energy
A
thermal, motion
B
chemical, motion
C
radiant, thermal
D
motion, chemical
10) Energy flow of a wind turbine: from ___ energy to ___ energy
A
motion, electrical
B
electrical, motion
C
motion, thermal
D
thermal, motion
*select an answer for all questions
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