ICSE Class 6 Physics, Unit 5: Light
From the CISCE curriculum. 7 key concepts, about 3 days of study at 20 to 30 minutes a day.
What this unit aims at
Light is an important element that helps in making objects visible. It travels in a straight line. When light falls on an object it casts a shadow. The earth and the moon and, in fact, planets cast their shadows in space. Sometimes, on a full-moon day, the moon passes through the shadow of the earth. The Earth casts two shadows that fall on the moon during a lunar eclipse. The umbra is a full dark shadow. The penumbra is a partial outer shadow.
Your child should be able to
- give examples of evidence that light travels in straight lines
- describe principle, construction and working of a pinhole camera
- explain the factors on which the size of the image in a pinhole camera depends
- explain the formation of shadows
- explain the occurrence of lunar eclipse
- explain the term umbra and penumbra
Key concepts in this unit
- Rectilinear Propagation of Light.
- Applications of rectilinear propagation of light.
- Pinhole camera:
- Principle and Working Factors on which the size of the image produced depends
- Shadows:
- Umbra Penumbra Natural Shadows –
- Eclipses
Teach this unit at home
- A day-by-day plan from the CISCE concepts, so you know what to cover each day.
- A step-by-step script for each day, so you know what to say and ask (AI-written from the CISCE curriculum, so check it against your child's school book).
- A quiz at the end.
From the CISCE Curriculum for Classes I to VIII (2016). CISCE sets what is taught, not the textbooks, so schools use different books and there are no page numbers here. Adhian Gurus is not affiliated with CISCE.