1. Electricity is a flow of ______ moving by a copper wire.
A.
electrons
B.
protons
C.
coils
D.
pipes
2.
2. On buildings walls, we can see copper pipes transporting _______
A.
Gas
B.
electricity
C.
engines
D.
turbines
3.
3. Spining a ______ to a coppee coil we can obtain electricity in this coil.
A.
magnet
B.
turbine
C.
generator
D.
wheel
4.
4. If we connect a _______ to a copper coil with a magnet inside, this magnet starts to spin.
A.
battery
B.
turbine
C.
engine
D.
generator
5.
5. A ___________ is a machine that produces electricity by spinning a magnet inside a copper coil.
A.
generator
B.
pipe
C.
turbine
D.
engine
6.
6. An engine is a machine that produces _________ applying electricity to a copper coil.
A.
movement
B.
wind
C.
gas
D.
electricity
7.
7. Attaching a _______ to a magnet we can spin it using natural media.
A.
turbine
B.
engine
C.
coil
D.
battery
8.
8. Nowadays we use water or wind to spin turbines in ________ without polluting.
A.
generators
B.
engines
C.
batteries
D.
pipes
9.
9. We can use also water _______ but polluting because we have to heat water burning gas or oil.
A.
steam
B.
coil
C.
copper
D.
gas
10.
10. Finally we can also produce steam by heating water with ________ materials. The problem is to store these materials once their useful life is over.
