light shadow and reflection class 7
It is approx 1500 km away from us then also it brightens all universe. To have skills to prepare pinhole camera and use a pinhole camera, 6. The size of shadow totally depends on distance between object and source of light. (ii) Light travels in _____ line. Explain the working of Pinhole camera with a simple diagram of it. The sunlight passing through the leaves of a large tree produces numerous circular images of the sun on the ground. Subscribe to class 6 science videos course by Don't Memorise. A. Rearrange the boxes given below to make a sentence that helps us understand opaque objects. NCERT Solutions for Class 6 Science Chapter 11 Light, Shadows and Reflections is an important resource material for the students who are preparing for CBSE board class 6 science examination. Why the direction of light changes when light falls on plane mirror? When an opaque object comes in the path of light it forms (a) an image with colours (b) shadow (c) black and white image (d) depends on the colour of the light. Shiny and polished surfaces usually act as mirrors. When a ray of light falls on a surface like glass which has shiny and glossy properties from where light gets reflected. It works on the principle of straight pathway of light. A shadow is black in color.. iv. The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo: Introduction What is Light? It is due to natural pinhole camera formed by the gaps of leaves. Ans: 9. Reflection occurs mainly on the mirror surface as incident light gets reflected when it falls on a clear surface and due to reflection the image formed is always erect. It is smaller during noon. When light falls on it from the top, circular shadow is formed on the screen. During day time sunlight acts as a source of energy which makes everything visible whereas at night we use artificial sources of light for seeing objects. e. g. The light coming out of a torch, motor car, The Sun etc. Define luminous body. 5. Figure showing: observations of light through hollow and bended pipes. Write difference between shadow and image. Straight pathway of Light– The light travels always in linear or rectilinear or straight pathway. To have skills to prepare pinhole camera and use a pinhole camera. Shadow is formed by an opaque object when light falls on it. Light can completely pass through transparent objects, partially pass through translucent objects and do not pass through opaque objects. 4. This is called reflection. NCERT Class 6th Chapter 11 Lights, Shadow and Reflection, NCERT Class 6 free solutions, www.educationphile.com. Then shadow is formed on the screen. Observe the picture given in Fig. Example: Sun, bulb, etc. Observation: When we peep through various materials, we find that: 1. 3. Define reflection of light. We can clearly see through a transparent object. Working- The pin-hole camera was used to view a burning candle. Mirrors reflect the light falling on them. A patch of light is obtained at B, when the torch is lighted as shown. The opposite side was used for viewing the image. Non - Luminous Object: An object which does not have a tendency to produce light known as a non-luminous object. Here in this Page Class VI Students can Learn Extra Questions & Answer 11th Chapter Science fully Inside. Question 1: A light source is incident on an object “P”. It works on the principle that light travels in a straight line. Chapter 11: Light, Shadows and Reflections. Features of Image Formed Due to Reflection. In a plane mirror, image of an object is laterally inverted, same colour, size and formed in front of object in mirror. ... (iii) The phenomenon of left appearing right and right appearing left on reflection from a mirror is called _____. It can be smaller than object, bigger than object or same size to object. 3. Those objects through which light cannot pass are called opaque objects. Its size and shape change according to direction of light or orientation of object. Transparent, Translucent and Opaque Objects. Example: moon. Q.4 What is shadow? During reflection angle of incidence is equal to angle of reflection. 6. 1. Choose the correct answer. Over this cut, a piece of butter paper was pasted covering the rectangular hole. (a) The Earth (b) The Moon (c) Burning candle (d) Science Textbook, 4. Features of Image Formed Due to Reflection: Ans. Far the source of light is, smaller is the shadow. Prepare a periscope and write its construction and working. The objects which give out light of their own are called luminous objects. Class 6 Physics Light Shadow and Reflection: Mirror and Reflection: Mirror and Reflection. Try to see a source of light; like a bulb or a candle; through the straight tube. No, we will not be able to see Our reflection in the mirror because there is no source of light in the room. If a dark coloured shadow of the object is cast on the screen, then which of the following could be? Question 1. We can clearly see through a transparent object. (e) In nature generally which refection of light from objects can be correlated with which figure? The shadows are not uniformly dark. What happens to light passing through a hand lens that makes the image of … Answer: The objects which emit light of their own are called luminous bodies, e.g., the sun, the stars, etc. Reflection occurs mainly on the mirror surface as incident light gets reflected when it falls on a clear surface and due to reflection the image formed is always erect. in absence of light. Pinhole cameras consist of a closed box having a small pinhole in the front and having translucent screen at the back. Luminous and Non-luminous objects–The objects which give out light of their own are called luminous objects. Example: Sun, bulb, etc. Requirements- A bright source of light like torch, an opaque object like a book or toy, a white cardboard sheet or wall. we can see across. 2. Sort out the objects given below into-, (a) Natural sources and artificial sources of light, The Earth, Apple, Glowing bulb, The Sun, School bag, Book, Football, Torch, Fireflies, Lighter, Mobile Phone, Ink Pen, and Crayons, PISA TYPE/ HOTS TYPE QUESTIONS- Time = 15 minutes Total marks =1 x 5=5, Fig.1 Fig.2, Look at the two above figures. Example: Sun, bulb, etc. For the formation of a shadow, a source of light, an opaque object and a screen are required. 11.1 carefully. Pro Lite, Vedantu Based on this, answer the following questions-. The darker part of shadow is called. Theory- The light travels (or propagates) in a straight line. Introduction – Light plays a very crucial role in our daily life. It is smaller during noon. 7. Those objects through which light can partially pass are called translucent objects. The Sunlight propagates from the Sun to the Earth. What are necessary conditions for formation of a shadow? Source of light which is already present in nature known as natural source of light. We cannot see through an opaque object. CLASS TEST 1 Time=30 Minutes Marks= 4 x 5 =20. Your email address will not be published. The reflected light can be re-reflected by keeping again and again by keeping mirrors the way. Introduction– Light plays a very crucial role in our daily life. For this, take a cylindrical tube; which can be easily bent. Choose three statements that are correct. Fill in the blanks. Light, shadows and reflection Worksheet-3 . Classify Objects Based on its Light Producing Property? Which of the following is a luminous object? For the formation of a shadow, a source of light, an opaque object and a screen are required. The pictures shows what a student observed when he looked through a hand lens at a penny. 2. Light, Shadows and Reflections Q1. Which of the following is kept at position A to get this patch of light? Shadows are not formed in dark i.e. […] Mirror- Mirrors are reflective pieces of glass one side of which is silvered. Source of light which is prepared by humans is known as man made source of light. CBSE Class 6 Science Light Shadows And Reflections Worksheet Set G. Download PDF. Main & Advanced Repeaters, Vedantu Closer the source of light, larger will be the size of the shadow. Luminous objects: An object which has a tendency to produce light are known as luminous objects. Source of light: An object which emits light, is called a source of light. Man Made Source of Light: Source of light which is prepared by humans is known as man made source of light. The object must be placed in the path of light. What is it’s use? – It is a simple device to indirectly see the bright objects. We can see through a translucent object but the vision would be murky. Fill in the blanks: _____ is a source that enables to see the things around us. All questions and answers from the Living Science Book of Class 6 Science Chapter 12 are provided here for you for free. Light can completely pass through transparent objects, partially pass through translucent objects and do not pass through opaque objects. To understand shadow formation conditions, 4. There are two types of reflection of light- i. Light is a form of energy that gives sensation of vision to our eyes. 8. To differentiate between shadow and image, 5. (a) The shape changes but size remains same, (b)The size changes but the shape remains same, (a) Air (b) water (c) Light (d) Soil. During morning and evening shadow is larger. (d) In which figure the laws of reflection of light are followed? What is shadow? All the questions are confined to NCERT Textbook only. Precautions- The pinhole made in the lager box should not be wide otherwise clear image of object will not be formed. Q.2 Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous: Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon. 1. How reflected light can be re-reflected? Luminous vs Non-Luminous Objects Rectilinear Propagation of Light What is Reflection? Q. The colour of shadow is dark irrespective of the colour of object. – Light plays a very crucial role in our daily life. The Sunlight propagates from the Sun to the Earth. They are reflections from the reflective surfaces. image in the mirror. Light is a form of energy.. iii. Online Test for Class 6 Physics Light Shadow and Reflection . Save my name, email, and website in this browser for the next time I comment. in absence of light. 6. Multiple Choice Questions . An iron ball . Q.2 Differentiate between luminous and non-luminous objects. Procedure- When torch light falls on the book, the dark coloured shadow of it is formed on the screen like white sheet or wall. One can see the light of burning candle by hollow pipe but not by bended pipe. During morning and evening shadow is larger. Define luminous and non-luminous objects. To understand about luminous and non-luminous objects, 2. Answer: When light rays after striking the smooth and shiny surface return to same medium, this phenomenon is called reflection of light. In this page, we are providing Light Shadows and Reflection Class 6 Extra Questions and Answers Science Chapter 11 pdf download. Shadows are dark coloured, smaller or larger than the object. We can see the light of a fixed candle from a long pipe when the pipe is straight, but when the pipe is bent we cannot see the light of the candle. Reflection of Light– The change in direction of light due to any reflective surface like mirror is called refection. Bujhoo and Paheli observed the shadow of a tree at 9:00 A.M., 12:00 P.M. and 3:00 P.M. This is the reason we can see objects in a pinhole camera. Q.3 Prove by an activity that light travels in a straight pathway. In nature, solar eclipse and lunar eclipse are examples of shadow formation. Give two examples each of natural and artificial sources of light. Pro Lite, CBSE Previous Year Question Paper for Class 10, CBSE Previous Year Question Paper for Class 12. One has been done for you: air, water, a piece of rock, ... Read more Grade 6 Light Shadows and Reflection … Example: bulb, candle, torch, etc. Solving the Light Shadows and Reflection Multiple Choice Questions of class 6 Science Chapter 11 MCQ can be of extreme help as you will be aware of all the concepts. e.g.- The Sun, The Stars, Fireflies or glow-worms (or Jugnu) are some of natural sources of light. It can be large or small than the object. (a) Opaque object (b) Transparent object (c) Air (d) Mirror. Class 6 Science Chapter 11 Extra Inside Questions and Answers – Light Shadows and Reflections. Shadows are not formed in dark i.e. Give two examples each of luminous and non-luminous objects. The darker part of shadow is called umbra and less dark part is called penumbra. e.g.- The Sun, The Stars, Fireflies or glow-worms (or Jugnu) are some of natural sources of light. From the experiment below we will prove that light travels in a straight line i.e path covered by light is alway straight. 2. Prepare a Kaleidoscope and write its construction and working. Activity 1 Activity 1 asks us to collect various materials and check if we can see through them. (a) A transparent glass (b) An opaque object, (c) A Screen (d) A source of light. Light Shadows and Reflections Activity Explanation, NCERT Science class 6 Chapter 11. For the formation of a shadow, a source of light, an opaque object and a screen are required. Ans- A cylinder will produce a circular as well as rectangular shadow if its position is changed against light. Mirrors can be – Plane mirrors and spherical mirrors. Which of the following is necessary for formation of shadow? The brightness of a luminous object decreases as we move away from it. Ans. Transparent, Translucent and Opaque Objects– Those objects through which light can pass completely are called transparent objects. It works on the principle of straight pathway of light. Requirements- Pencil, Rubber ball, Sheet of writing paper, textbook, plastic ruler, piece of wood, power glasses and torch. Worksheets are very critical for every student to practice his/ her concepts. There is no change of left part of object to right part of image and right part of object to left part of image. e. g.-The glowing electric bulb, the burning candles, burning matchsticks are examples of artificial sources of light. A rectangular cut was made in the center of one of the side of small box. We can see through a translucent object but the vision would be murky. Q.1 Rearrange the boxes given below to make a sentence that helps us understand opaque objects. 1. Light is a form of energy that gives sensation of vision to our eyes. Vedantu academic counsellor will be calling you shortly for your Online Counselling session. The diagram below shows George using his laptop. Q2: Shadows formation shows that light (a) can travel in vacuum (b) travels in straight lines (c) exhibits wave nature. But, when light falls on it from the side, rectangular shadow is formed on the screen. Ans- In a dark room I will not be able to see my reflection i.e. MCQ Questions for Class 6 Science: Ch 11 Light, Shadow and Reflections Abhishek 12 Sept, 2020 MCQ Questions for Class 6 Science: Ch 11 Light, Shadow and Reflections The colour of shadow is dark irrespective of the colour of object. This is the reason we can see objects in a pinhole camera. Periscope is based on which principal of light-, (a) Refraction of light (b) Reflection of light, (c) Diffraction of light (d) Interference of light, 14. Sources of Light– The light is produced by natural as well as artificial (man-made) objects. It is used to view objects like trees and buildings. Pinhole camera is made up of translucent butter paper. Q.4 Write any three differences between an image and a shadow. Central inner part is darker than outer surrounding part. Example: Sun. Example: moon. 4. Fig.11.1 . Except the time of sleeping we require light to do almost every work. For example, sun, torch, etc. Here we have given NCERT Class 6 Science Notes Chapter 11 Light, Shadows and Reflection. Shadows are dark coloured, smaller or larger than the object. Class: VI. e.g.- The planets, moon, books, bench, desk, etc. Sun is the universal source of light. Pro Subscription, JEE MCQ Questions for Class – 6th Science Chapter – 11 Light Shadows and Reflection with Answers. Inner part of shadow is comparatively darker than outer fainted part. Shadow is formed by an opaque object when light falls on it. e.g.- Air, Clean Water, Clear glass, spectacles etc. Mainly there are two types of object based on their light emitting property: Luminous Objects: An object which has a tendency to produce light are known as luminous objects. In which of the following the speed of light is fastest? Mirror is an object which reflects light. Register online for Science tuition on Vedantu.com to score more marks in your examination. An object which has a tendency to produce light are known as luminous objects. Key Features of NCERT Material for Class 6 Science Chapter 11 – Light,Shadows and Reflection. Conclusion FAQs i. This happens because light travels in a straight line. To know refection of light and re-reflection by mirrors. A Pinhole camera is used to indirectly see the bright objects like the Sun. The reflection of light on the plane (or smooth or regular or even) reflective surface follows the laws of reflection of light but this law fails on the diffused (or irregular surface or rough or uneven) surface. This is a pin-hole camera. 3. We cannot see through an opaque object. Right side of the object appears to be left in image and vice-versa. Light from the lamp is reflected by the laptop screen. Q.3 Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in other way? An Object through which light is completely passed known as transparent object. Opaque Object: An object which does not allow passage to light is called an opaque object. As when light falls on an object, light gets reflected and this reflected light comes to us which makes the object visible. This concept is well proved with a smaller size of shadow in the evening and noon and bigger size of shadow in the morning. On the same side if the incidence angle is bigger, the shadow is smaller. – Those objects through which light can pass completely are called transparent objects. When a ray of light falls on an opaque object, a dark patch is formed on the other side of the object whether it is on ground or it is on screen present on the other side of the object. Light Shadows and Reflection Class 6 Extra Questions Science Chapter 11 NCERT Extra Questions for Class 6 Science Chapter 11 Light Shadows and Reflection Transparent Opaque And Transculent Objects Question 1. When a ray of light falls on a surface like glass which has shiny and glossy properties from where light gets reflected. 1) When an object blocks the path of light, what is formed? (d) Light gives us sense of vision. It is based on straight pathway of light. Ans. (b) Figure 1 shows which type of reflection of light? Light is produced by light emitting sources called luminous objects. e.g.- Air, Clean Water, Clear glass, spectacles etc. (c) Light bounces back by a medium when it falls on the medium. Prepare a Pinhole camera and write its construction and working. The small box was painted black from outside. (a) Screen (b) Light (c) Opaque object (d) All of these, 13. But, its direction changes due to air. In the previous chapter 10: Motion And Measurements Of Distances, you have studied about our motion and to calculate the measurements of distances.In this chapter: Light,Shadows And Reflections you will study about the light and the formation of shadows and reflections. (c) In which figure the laws of reflection of light fail? In case if the incidence angle is smaller, shadow is longer. Light always travels in straight pathway. Pinhole camera is made up of translucent butter paper. Mirrors reflect the light falling on them. Worksheets have become an integral part of the education system. e.g.- The Sun, The Stars, Fireflies or glow-worms, The glowing electric bulb, the burning candles, burning matchsticks etc. e. g.-The glowing electric bulb, the burning candles, burning matchsticks are examples of artificial sources of light. Transparent Object: An Object through which light is completely passed known as transparent object. 2. Do not look the very bright light sources like the Sun for longer time. Vedantu Light, Shadows and Reflection – Question: Define reflection of light. Regular reflection. The reflected light can be re-reflected by keeping again and again by keeping mirrors the way. Some common examples of sources of light are sun, bulb,etc. CBSE Class 7 Science Worksheet - Light - Practice worksheets for CBSE students. Shadow is formed on screen by opaque objects when light falls on it. Q.1 What is a pinhole camera? Key Learning Points-Introduction, Sources of light, Luminous and Non-luminous objects, Transparent, Translucent and Opaque Objects, Straight pathway of Light, Shadow, Differences between shadow and image, A Pinhole Camera, Mirror and Reflection of Light, Learning Objectives– At the end of this lesson the students will be able to-, 1.