Sensor Light Intensity Sensor
Authored by ALAIN Cheong
Professional Development
12th Grade
Used 5+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the function of a light sensor?
To generate electricity
To detect changes in light levels
To store energy in silicon cells
To switch on and off different devices
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is another name for a photovoltaic light sensor?
Solar cells
Photo-resistors
Photo diodes
Proximity sensors
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
When do photovoltaic sensors not generate current?
In high light situations
In low light situations
In complete darkness
They always generate current
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What happens to the resistance of a light-dependent sensor as light levels increase?
It increases
It stays the same
It decreases
It fluctuates
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What are photoresistors made of?
Cadmium sulphide
Silicon
Photovoltaic cells
Photo diodes
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What digital technology uses photo diodes to detect light levels?
Cameras
Video recorders
Remote controls
All of the above
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the function of proximity light sensors?
To generate current
To detect motion or proximity to another object
To transmit different light levels to a device
To respond to levels of infrared
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