Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define focal length.
💡 Hint: Think about how a lens focuses light.
Question 2
Easy
What is scale in photogrammetry?
💡 Hint: Remember how maps can represent real distances.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the term focal length refer to?
- Distance to the ground
- Distance from camera to focal plane
- Distance in mapping
💡 Hint: It's about the lens not the ground.
Question 2
True or False: The scale of a photograph taken in flat terrain remains constant.
- True
- False
💡 Hint: Think about the relationship between height and scale.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If an aerial camera with a focal length of 150mm is at 2000m, but the ground height is variable between 50m and 100m, calculate the scale at both points.
💡 Hint: Use the formula for each elevation point individually.
Question 2
Discuss how the scale variance might affect a mapping project in an urban environment with many tall buildings.
💡 Hint: Consider the impact of cliffs and valleys in urban settings.
Challenge and get performance evaluation