Periscopes: Exploring the Physics Behind Reflection

A periscope is an optical device used to observe objects that are not in the direct line of sight. It typically consists of a tube with mirrors at each end, angled to allow the user to see around obstacles or over barriers. The functionality of a periscope is based on the principles of reflection and the behavior of light.

Principles of Reflection

Reflection is the process by which light or other waves are thrown back from a surface. In the case of a periscope, the mirrors are used to reflect light in such a way that the image of the object being observed is directed to the user’s eye.

Physics Behind Periscopes

When light strikes a mirror, it reflects off the surface at an angle equal to the angle of incidence. This means that the angle at which the light strikes the mirror is equal to the angle at which it is reflected. In a periscope, this principle of reflection is used to redirect the light from the object being observed to the user's eye, allowing them to see around obstacles.

Study Guide

To understand the physics behind periscopes, it is important to study the following concepts:

Law of Reflection: Understand the relationship between the angle of incidence and the angle of reflection when light strikes a surface.
Mirrors: Learn about the different types of mirrors, such as plane mirrors and concave mirrors, and how they reflect light.
Periscope Design: Explore the design and construction of a periscope, including the placement and angling of the mirrors to achieve the desired reflection.
Applications of Reflection: Investigate other devices and applications that utilize the principles of reflection, such as telescopes, microscopes, and optical fiber technology.

By understanding these concepts, students can gain a deeper appreciation for the scientific principles that govern the functionality of periscopes and other optical devices.

Overall, the study of periscopes provides a practical application of the physics of light and reflection, offering insight into how these principles are utilized in real-world scenarios.

◂Physics Worksheets and Study Guides High School. Light and Optics

Vocabulary/Answer key

Light and Optics

Vocabulary/Answer key

Light and Optics

Vocabulary/Answer key

Light and Optics

The resources above cover the following skills:

Skills And Processes: The student will demonstrate ways of thinking and acting inherent in the practice of science. The student will use the language and instruments of science to collect, organize, interpret, calculate, and communicate information.

The student will pose scientific questions and suggest investigative approaches to provide answers to questions.

The student will test a working hypothesis. (NTB)

The student will use appropriate methods for communicating in writing and orally the processes and results of scientific investigation.

The student will describe similarities and differences when explaining concepts and/or principles.

The student will use mathematical processes.

The student will use ratio and proportion in appropriate situations to solve problems.

Concepts Of Earth/Space Science: The student will demonstrate the ability to use scientific skills and processes (Core Learning Goal 1) to explain the physical behavior of the environment, Earth, and the universe.

The student will identify and describe techniques used to investigate the universe and Earth.

The student will describe the purpose and advantage of current tools, delivery systems and techniques used to study the universe.

Concepts Of Physics: The student will demonstrate the ability to use scientific skills and processes (Core Learning Goal 1) to explain and predict the outcome of certain interactions which occur between matter and energy.

The student will investigate certain topics in modern physics.

The student will cite evidence of the wave/particle duality in the nature of matter.