https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:light-shadows-and-reflections/x2afa7396c019dcda:sources-of-light/v/sources-of-light 2025-09-10T11:00:50.94278817Z Sources of light Why does the Moon shine if it’s not a source of light? Why does Earth look like it’s glowing in the famous Pale Blue Dot photo? In this video, we explore the fascinating world of sources of light, and discover the difference between luminous and non-luminous objects. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Sources of light Why does the Moon shine if it’s not a source of light? Why does Earth look like it’s glowing in the famous Pale Blue Dot photo? In this video, we explore the fascinating world of sources of light, and discover the difference between luminous and non-luminous objects. https://cdn.kastatic.org/ka-youtube-converted/krVJWL5DyrM.mp4/krVJWL5DyrM.mp4 343 Light: shadows and reflections https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:light-shadows-and-reflections/x2afa7396c019dcda:sources-of-light/e/sources-of-light 2026-04-08T01:15:04.085520103Z Sources of Light Lets answer some questions Shankar R exercise https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/v/light-travels-in-a-straight-line 2023-06-26T03:56:33.129173029Z Light travels in a straight line Let's find out if light travels in a straight line through an interesting activity! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Light travels in a straight line Let's find out if light travels in a straight line through an interesting activity! https://cdn.kastatic.org/ka-youtube-converted/EasN5Z8kElg.mp4/EasN5Z8kElg.mp4 75 Light: shadows and reflections https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/e/luminous-and-non-luminous-objects 2026-04-08T00:16:02.937952483Z Light and its Characteristics LO1: Light and its characteristics (natural/artificial source of light, speed, travels in a straight line etc).  LO2: Luminous and Non-luminous Objects   Revathi exercise https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-2/x00110b31861f2508:materials-around-us/v/opaque-transparent-and-translucent 2023-06-26T03:56:33.129173029Z Opaque, transparent and translucent Light doesn't pass through all materials. Materials can be categorised according to that property! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Opaque, transparent and translucent Light doesn't pass through all materials. Materials can be categorised according to that property! https://cdn.kastatic.org/ka-youtube-converted/Bc8UvDA3WfE.mp4/Bc8UvDA3WfE.mp4 183 Light: shadows and reflections https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-4/x017c12e57b64cfa8:untitled-256/e/transparent-translucent-and-opaque 2026-04-08T00:16:02.937952483Z Transparent, Translucent and Opaque Objects LO: Transparent, Translucent and Opaque Revathi exercise https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-4/x37589313f9a4c197:light-reflection-and-refraction/v/law-of-reflection 2023-06-26T04:10:39.513125705Z Law of reflection Let's draw a ray diagram to understand the path of light when it reflects off a mirror! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Law of reflection Let's draw a ray diagram to understand the path of light when it reflects off a mirror! https://cdn.kastatic.org/ka-youtube-converted/9rV_mijMF0Y.mp4/9rV_mijMF0Y.mp4 222 Light: shadows and reflections https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-4/x37589313f9a4c197:light-reflection-and-refraction/e/lo16-2-reflection 2026-04-07T22:59:30.107127435Z Reflection Class 8 - LO mapped exercise 2 Prakash Aakash Bagga exercise https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-4/x37589313f9a4c197:light-reflection-and-refraction/v/characteristics-of-image-formed-by-a-plane-mirror 2023-06-26T04:10:39.513125705Z Characteristics of image formed by a plane mirror Let's explore the characteristics of the images formed by a plane mirror! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Characteristics of image formed by a plane mirror Let's explore the characteristics of the images formed by a plane mirror! https://cdn.kastatic.org/ka-youtube-converted/AdWY3rwEWjM.mp4/AdWY3rwEWjM.mp4 98 Light: shadows and reflections https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-4/x37589313f9a4c197:light-reflection-and-refraction/e/plane-mirror-and-image-formation 2025-04-16T07:48:17.898801572Z Plane mirror and image formation Let's solve some questions on plane mirror and image formation Vibhor Pandey exercise https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:reflection-of-light-at-plane-surfaces/x17f7017799a605d2:6-1-formation-of-image-by-a-pinhole-camera/v/pinhole-camera 2025-11-05T05:50:51.757820624Z Pinhole Camera Did you know you can capture an image with just a box, a tiny hole, and some light—no lens, no electronics? That’s the magic of a pinhole camera! Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Pinhole Camera Did you know you can capture an image with just a box, a tiny hole, and some light—no lens, no electronics? That’s the magic of a pinhole camera! https://cdn.kastatic.org/ka-youtube-converted/sH0WZgjp_zQ.mp4/sH0WZgjp_zQ.mp4 342 Light: shadows and reflections https://www.khanacademy.org/science/telangana-class-8-science/x17f7017799a605d2:reflection-of-light-at-plane-surfaces/x17f7017799a605d2:6-1-formation-of-image-by-a-pinhole-camera/e/pinhole-camera 2026-04-07T22:59:30.107127435Z Pinhole camera Explore how a pinhole camera forms inverted images using light that travels in straight lines. Understand image formation, brightness, and construction of this simple optical device through interactive questions. Yajurva Joshi exercise https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:light-shadows-and-reflections/x2afa7396c019dcda:pinhole-camera-and-other/e/making-some-useful-objects 2026-04-07T23:17:37.123726494Z Making some useful objects Lets answer some questions! Shankar R exercise