Question 1

What is the primary function of a solar panel?

Accepted Answer

To convert light into electricity

Answer

To generate heat

Answer

To filter water

Answer

To store electricity

Question 2

What does the term "photovoltaic" mean in the context of solar panels?

Accepted Answer

Light and voltage conversion

Answer

Electricity and voltage conversion

Answer

Heat and light conversion

Answer

Heat and electricity conversion

Question 3

Which device is used to measure electrical voltage in a solar cell experiment?

Accepted Answer

Multimeter

Answer

Thermometer

Answer

Barometer

Answer

Oscilloscope

Question 4

What are the tiny particles of light called that hit the solar cell?

Accepted Answer

Photons

Answer

Electrons

Answer

Neutrons

Answer

Protons

Question 5

Where are solar cells commonly used in everyday items?

Accepted Answer

Calculators and garden lights

Answer

Computers and smartphones

Answer

Microwaves and ovens

Answer

Televisions and refrigerators

Question 6

What is a solar array?

Accepted Answer

Multiple strings of solar modules connected together

Answer

The protective layer on a solar cell

Answer

A single solar cell

Answer

A type of solar-powered vehicle

Question 7

Which layer in a solar cell is responsible for absorbing photons and generating free electrons?

Accepted Answer

Silicon layer (semiconductor)

Answer

Glass protective layer

Answer

Metal conductive plate

Answer

Anti-reflective coating

Question 8

What happens to the electrons when photons hit the solar cell?

Accepted Answer

They are knocked loose and create a current

Answer

They become neutrons

Answer

They stay in place

Answer

They combine with protons

Question 9

Why do solar panels have an anti-reflective coating?

Accepted Answer

To reduce reflection and allow more light to enter

Answer

To protect from physical damage

Answer

To increase the weight of the panel

Answer

To enhance electrical conductivity

Question 10

How does increasing light intensity affect the electricity produced by a solar cell?

Accepted Answer

It increases the electricity produced

Answer

It reverses the electricity flow

Answer

It decreases the electricity produced

Answer

It has no effect

Question 11

What is the role of the metal grid (negative electrode) on a solar cell?

Accepted Answer

To collect and direct electrons into an external circuit

Answer

To protect the solar cell from the environment

Answer

To absorb more light

Answer

To store electrical energy

Question 12

Why are multiple solar cells connected together in a solar module?

Accepted Answer

To generate enough power for everyday use

Answer

To increase the size of each cell

Answer

To make the panel more durable

Answer

To reduce the cost of production

Question 13

What does the depletion region at the PN junction do in a solar cell?

Accepted Answer

It creates an electric field that separates electrons and holes

Answer

It stores electrical energy

Answer

It reflects sunlight away from the cell

Answer

It absorbs excess heat

Question 14

How do charge controllers benefit a solar power system?

Accepted Answer

They regulate the power going into the battery to prevent overcharging

Answer

They convert DC to AC electricity

Answer

They increase the voltage of the solar panels

Answer

They store electricity in batteries

Question 15

What is net metering in a grid-connected solar power system?

Accepted Answer

Sending excess electricity back to the grid and receiving credits

Answer

Charging the battery during the day

Answer

Measuring the size of the solar panels

Answer

Monitoring the temperature of the solar panels

Question 16

Why can't the LED fully power itself when connected to a solar cell?

Accepted Answer

Not all the energy from the LED is converted back into electricity

Answer

The LED uses AC electricity instead of DC

Answer

The solar cell does not absorb photons

Answer

LEDs do not produce photons

Question 17

If a single solar cell generates 0.5 volts, how many cells connected in series are needed to produce 3 volts?

Accepted Answer

6 cells

Answer

3 cells

Answer

10 cells

Answer

5 cells

Question 18

A solar module produces 30 volts and 8 amps of current. What is the power output of this module?

Accepted Answer

240 watts

Answer

300 watts

Answer

38 watts

Answer

150 watts

Question 19

In a garden light powered by a solar cell, what role does the battery play?

Accepted Answer

It stores excess energy for use at night

Answer

It reflects sunlight onto the solar cell

Answer

It increases the voltage generated by the solar cell

Answer

It converts DC to AC electricity

Question 20

Why are solar panels often protected by a glass layer?

Accepted Answer

To protect the solar cells from weather and physical damage

Answer

To enhance light absorption

Answer

To increase the panel's weight

Answer

To conduct electricity more efficiently

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