Quiz on Fundamentals of Remote Sensing

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