Photovoltaic Cells

Photovoltaic panels are made of

• thick cells

• thin cells

• layers of cells

PV panels

• generate electricity

• transform electricity

• store electricity

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the quantity of electricity produced depends on

• the thickness of the cells

• the number of cells

• both

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An array is

• a single PV panel

• a big group of PV panels

• a building where you put PV panels

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Big PV arrays are called

• solar fields

• solar farms

• solar factories

What choice material is a PV cell made of

• plastic

• metal

• silicon

In a PV cell

• The upper layer is positively charged and the lower one is negatively charged

• Both layers are poitively charged

• The upper layer is negatively charged and the lower one is positively charged

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What does photons bring electrons

• energy

• light

• waves

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the electric current is produced when

• the electrons move around the bottom layer of the cell

• move around the top layer of the cell

• move from the bottom layer to the top layer

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NGSS.HS-PS2-5

The wafer in a cell has to be

• conducting

• semi-conducting

• not conducting