3.1.1. Passive and Active Sensors

Try these first

1. 1.

   What do passive sensors rely on to gather data?

   Hint

   Think about the sun's role in sensor function.

2. 2.

   Name one example of an active sensor.

   Hint

   Consider sensors that generate their own data signals.

3. 3.

   What do passive sensors primarily rely on?

   • Sunlight
   • Artificial Light
   • Radar signals

   Hint

   Think about what they need to detect data.

4. 4.

   True or False: Active sensors can operate at night.

   • True
   • False

   Hint

   Consider how they gather data compared to passive sensors.

5. 5.

   Consider a scenario in a mountainous region where both daytime and nighttime data is required. Which type of sensors will best serve this situation and why?

   Hint

   Think about how each sensor type functions under different light conditions.

6. 6.

   Design a study where you could leverage both passive and active sensors. What parameters will each sensor track, and why is a combination necessary?

   Hint

   Consider how each sensor matters in the study and their limitations.