WorksheetsQuiz on Fundamentals of Remote Sensing
Total questions: 14
Worksheet time: 7mins
What is Remote Sensing defined as?
The study of atmospheric conditions
The science and technology to identify characteristics without direct contact
The science of measuring temperature
The technology for underwater exploration
What is a device that detects electro-magnetic radiation called?
Platform
Sensor
Camera
Scanner
Which satellite was the first earth observation satellite launched?
Landsat-1
Landsat-2
Landsat-4
Landsat-3
What is the primary source of energy for visible and reflective infrared remote sensing?
Geothermal energy
Artificial lights
The sun
The moon
What does the term 'radiometry' refer to?
Measurement of atmospheric pressure
Measurement of electro-magnetic radiation
Measurement of sound waves
Measurement of temperature
What is a black body in the context of remote sensing?
An object that transmits all energy
An object that reflects all light
An object that absorbs all incident energy
An object that emits no energy
What is the relationship between wavelength and frequency in electro-magnetic radiation?
They are directly proportional
They are equal
They are inversely proportional
They are unrelated
What is the term for the ratio of incident flux to reflected flux?
Irradiance
Radiance
Albedo
Reflectance
Which type of remote sensing uses the energy emitted from the object itself?
Visible and Reflective Infrared Remote Sensing
Laser Radar Remote Sensing
Microwave Remote Sensing
Thermal Infrared Remote Sensing
What is the primary characteristic of electro-magnetic radiation as wave motion?
It travels only in a vacuum
It can be considered as a transverse wave
It is only particle motion
It has no frequency
What does the term 'extinction' refer to in the context of atmospheric transmission?
The reflection of light
The reduction of sunlight intensity
The scattering of light
The absorption of light
What is the primary use of thermal infrared remote sensing?
Water quality assessment
Vegetation mapping
Soil moisture detection
Temperature measurement
What is the effect of Rayleigh scattering?
It is proportional to the square of the wavelength
It is inversely proportional to the fourth power of the wavelength
It only occurs at night
It has no effect on light
What is the significance of the Doppler shift effect in remote sensing?
It measures light intensity
It measures temperature changes
It provides information about object motion
It detects atmospheric pressure
