Class 7 Exam > Class 7 Notes > Science (Curiosity) Class 7 - New NCERT > Unit Test: Light: Shadows and Reflection
Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT PDF Download
Time: 1 Hour
Maximum Marks: 30
Instructions:
Attempt all questions.
Question numbers 1 to 5 carry 1 mark each .
Question numbers 6 to 8 carry 2 marks each.
Question numbers 9 to 11 carry 3 marks each.
Question numbers 12 and 13 carry 5 marks each.
Q1. Which object shines by reflecting light rather than producing it? (1 Mark)
a) Sun
b) Firefly
c) Moon
d) Lightning
Q2. What happens when light passes through a translucent material? (1 Mark)
a) It is completely blocked
b) It passes through clearly
c) It passes through partially, causing blurred visibility
d) It reflects back completely
Q3. What is the term for the left-right reversal in a plane mirror image? (1 Mark)
a) Rectilinear propagation
b) Shadow formation
c) Lateral inversion
d) Reflection
Q4. Which device uses two mirrors to see objects not directly visible? (1 Mark)
a) Pinhole camera
b) Periscope
c) Kaleidoscope
d) Torch
Q5. Which material produces the darkest shadow? (1 Mark)
a) Glass
b) Tracing paper
c) Cardboard
d) Clear plastic
Q6. Give two differences between luminous and non-luminous objects. (2 Mark)
Q7. Why is "AMBULANCE" written in reverse on the front of vehicles? (2 Mark)
Q8. What makes LED lamps environmentally friendly? (2 Mark)
Q9. What are the characteristics of an image formed in a plane mirror? (3 Mark)
Q10 What is a periscope, and mention its practical uses. (3 Mark)
Q11. How do you form a shadow using a torch? (3 Mark)
Q12: Describe the process of shadow formation. (5 Mark)
Q13: Explain how the Moon reflects light. (5 Mark)
You can find the solutions of this Unit Test here: Unit Test Solutions: Light: Shadows and Reflection
The document Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT is a part of the Class 7 Course Science (Curiosity) Class 7 - New NCERT.
All you need of Class 7 at this link: Class 7
|
80 videos|224 docs|12 tests
|
FAQs on Unit Test: Light: Shadows and Reflection - Science (Curiosity) Class 7 - New NCERT
| 1. What are shadows and how are they formed? |  |
Ans. Shadows are dark areas or shapes produced when an object blocks light from a light source. When light travels in straight lines, it is obstructed by opaque objects, creating a shadow on the surface behind the object. The size and shape of a shadow depend on the position of the light source and the object blocking the light.
| 2. What factors affect the size and shape of a shadow? | |
Ans. The size and shape of a shadow are influenced by several factors, including the distance between the light source and the object, the distance between the object and the surface where the shadow falls, and the angle at which the light hits the object. For instance, when the light source is close to the object, the shadow appears larger and more distorted.
| 3. How does reflection of light work? | |
Ans. Reflection of light occurs when light rays strike a surface and bounce back. This phenomenon is governed by the law of reflection, which states that the angle of incidence (the angle at which incoming light hits a surface) is equal to the angle of reflection (the angle at which light reflects off the surface). Smooth surfaces like mirrors reflect light well, while rough surfaces scatter light.
| 4. Can you explain the difference between regular and diffuse reflection? | |
Ans. Regular reflection occurs on smooth surfaces, like mirrors, where light rays reflect at equal angles, producing a clear image. In contrast, diffuse reflection happens on rough surfaces, where light rays scatter in various directions, resulting in a blurred or indistinct image. This is why we can see objects that are not shiny, as they reflect light diffusely.
| 5. What is the importance of shadows and reflections in everyday life? | |
Ans. Shadows and reflections play vital roles in our daily experiences. Shadows help in understanding the position of light sources and can indicate the time of day. Reflections enable us to see ourselves in mirrors and help in navigation, as they can indicate the presence of water or other reflective surfaces. Additionally, shadows and reflections are important in art and photography, adding depth and perspective to visual compositions.
About this Document
4.73/5
Rating
Sep 24, 2025
Last updated
Related Exams
Document Description: Unit Test: Light: Shadows and Reflection for Class 7 2025 is part of Science (Curiosity) Class 7 - New NCERT preparation.
The notes and questions for Unit Test: Light: Shadows and Reflection have been prepared according to the Class 7 exam syllabus. Information about Unit Test: Light: Shadows and Reflection covers topics
like and Unit Test: Light: Shadows and Reflection Example, for Class 7 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Unit Test: Light: Shadows and Reflection.
Introduction of Unit Test: Light: Shadows and Reflection in English is available as part of our Science (Curiosity) Class 7 - New NCERT
for Class 7 & Unit Test: Light: Shadows and Reflection in Hindi for Science (Curiosity) Class 7 - New NCERT course.
Download more important topics related with notes, lectures and mock test series for Class 7
Exam by signing up for free. Class 7: Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT
Description
Full syllabus notes, lecture & questions for Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT - Class 7 | Plus excerises question with solution to help you revise complete syllabus for Science (Curiosity) Class 7 - New NCERT | Best notes, free PDF download
Information about Unit Test: Light: Shadows and Reflection
In this doc you can find the meaning of Unit Test: Light: Shadows and Reflection defined & explained in the simplest way possible. Besides explaining types of
Unit Test: Light: Shadows and Reflection theory, EduRev gives you an ample number of questions to practice Unit Test: Light: Shadows and Reflection tests, examples and also practice Class 7
tests
Related Searches
Exam
,Viva Questions
,Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT
,study material
,past year papers
,Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT
,Sample Paper
,Summary
,Important questions
,ppt
,Objective type Questions
,video lectures
,Extra Questions
,Free
,practice quizzes
,Semester Notes
,MCQs
,Unit Test: Light: Shadows and Reflection | Science (Curiosity) Class 7 - New NCERT
,mock tests for examination
,Previous Year Questions with Solutions
,shortcuts and tricks
;
Additional Information about Unit Test: Light: Shadows and Reflection for Class 7 Preparation
Unit Test: Light: Shadows and Reflection Free PDF Download
The Unit Test: Light: Shadows and Reflection is an invaluable resource that delves deep into the core of the Class 7 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Unit Test: Light: Shadows and Reflection now and kickstart your journey towards success in the Class 7 exam.
Importance of Unit Test: Light: Shadows and Reflection
The importance of Unit Test: Light: Shadows and Reflection cannot be overstated, especially for Class 7 aspirants.
This document holds the key to success in the Class 7 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Unit Test: Light: Shadows and Reflection Notes
Unit Test: Light: Shadows and Reflection Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Unit Test: Light: Shadows and Reflection.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Unit Test: Light: Shadows and Reflection Notes on EduRev are your ultimate resource for success.
Unit Test: Light: Shadows and Reflection Class 7 Questions
The "Unit Test: Light: Shadows and Reflection Class 7 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 7 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Unit Test: Light: Shadows and Reflection on the App
Students of Class 7 can study Unit Test: Light: Shadows and Reflection alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Unit Test: Light: Shadows and Reflection,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Unit Test: Light: Shadows and Reflection is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily