Vocab
All matter is made of ______________.
atoms
Which is a good electrical conductor: A) plastic B) wood C) rubber D) metal
D. metal
Blows your hat off
wind
______________ attract.
opposites
Beavers live in their dams
True or false
false
electrical currents is the flow of _______________.
electrons
A device that can open or close a circuit.
switch
an area of land with a group of energy-producing windmills or wind turbines.
wind farm
These regions of a magnet where the magnet is strongest.
the magnetic poles
Hydropower is the main source of electricity in WA
True or false
true
over 60%
This is the space in which a magnet is able to exert force.
magnetic field
The type of circuit where there is only one path for the current to take.
series circuit
Made a windmill out of scrap parts to help his family
William Kamkwamba
These type of poles REPEL each other.
LIKE poles
Hydropower Plants with dams can cause problems for the environment because ________________.
They disrupt the flow of the river
(fish,
drawn on most maps to show direction
compass rose
Circuits must have an unbroken path of conductors and a ____________ that causes the electrons to move along the path.
load (power source)
Wind is this type of energy
kinetic energy
Currently, Earth’s magnetic north is really this.
Earth’s south pole
Where the potential energy is stored in a hydropower plant/dam
reservoir
The arrow head portion of a compass needle has this magnetic polarity.
North
Homes are wired in:
A. series circuit
B: parallel circuit
B: parallel circuit
windmills were first used to ____________.
grind grain
pump water
Ferromagnetic materials include these metals.
iron, cobalt, and nickel
what are 2 main parts of a hydropower plant
generator
turbine
intake valve
power station
river