
Laser Technology in Elevation Measurement Using LIDAR Systems

Interactive Video
•
Physics, Science, Computers
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does LIDAR use to measure the elevation of surfaces?
Magnetic fields
Light from a laser
Radio waves
Sound waves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of a LIDAR system is responsible for tracking the plane's position?
Computer
Inertial measurement unit
GPS receiver
LIDAR unit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the inertial measurement unit (IMU) in a LIDAR system?
To track the plane's tilt
To emit light energy
To calculate the speed of light
To record data
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a LIDAR system calculate the distance to the ground?
By calculating the angle of the pulse
By using the plane's altitude
By measuring the sound waves
By measuring the time light takes to travel to the ground and back
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a 'return' in the context of LIDAR?
The angle at which the pulse is emitted
Reflected light energy recorded by the LIDAR sensor
A burst of light energy emitted by the LIDAR
The time taken for light to travel to the ground
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to account for the plane's movement in LIDAR calculations?
To track the plane's altitude
To ensure the laser emits light correctly
To accurately calculate elevation
To measure the speed of light
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does 'off nadir' mean in LIDAR terminology?
Light pulses traveling vertically
Light pulses leaving the plane at an angle
The plane's altitude
The speed of light
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