(i) Which of the following is a natural source of light?
(a) Torch
(b) Candle
(c) Fireflies
(d) Electric bulb
(ii) Which of these is not a transparent object?
(a) Glass
(b) Air
(c) Wood
(d) Water
(iii) What do we call the dark area formed by an opaque object when light falls on it?
(a) Reflection
(b) Shadow
(c) Refraction
(d) Lens
(iv) What is the term used to describe how light travels in a straight line?
(a) Reflection of light
(b) Refraction of light
(c) Rectilinear propagation of light
(d) Dispersion of light
(v) Which of the following materials allows light to pass through it?
(a) Opaque
(b) Transparent
(c) Translucent
(d) Reflective
(i) Light travels in a straight line called a __________.
(ii) When an object blocks light, it forms a __________.
(iii) The size of the shadow depends on the __________ of the light source.
(iv) Shadows are the longest during the __________.
(v) Transparent materials allow __________ to pass through them.
(i) Shadows are formed when light is blocked by an object.
(ii) The size of the shadow depends on the distance of the object from the light source.
(iii) Transparent materials do not allow light to pass through them.
(iv) Mirrors are an example of a reflective surface.
(v) Shadows can change shape and size throughout the day.
(i) What is light?
(ii) Name any two sources of light.
(iii) What are the three types of materials based on their interaction with light?
(iv) Explain the difference between transparent, translucent, and opaque objects.
(v) How are shadows formed?
You can find Worksheets Solutions here: Worksheet Solutions: Light and Shadow - 1
43 videos|198 docs|45 tests
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1. What is light, and why is it important for us? |
2. How do shadows form? |
3. What are the different types of shadows? |
4. How do we use light and shadow in our daily lives? |
5. How can we make our own shadows at home? |
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