Class 7 Exam  >  Class 7 Notes  >  Worksheets with solutions for Class 7  >  Worksheet: Light: Shadows and Reflections

CBSE Class 7 Science Chapter 11 Light Worksheet - Free Download

 True/False

(a)  The Moon is a luminous object.

(b) Transparent materials allow no light to pass through.

(c) A kaleidoscope forms changing symmetrical patterns using mirrors.

(d) Light can travel through a bent pipe easily.

(e) A plane mirror forms a virtual image.

Fill in the blanks.

(a) Objects that emit their own light are called ___________.

(b) Light travels in a __________ line under normal conditions.

(c) An image formed by a plane mirror is laterally __________.

(d) Opaque objects form the __________ shadows.

(e) A __________ camera forms an inverted image on a screen.

Answer the Following Questions

Q.1. What is a luminous object?

Q.2. Give one example of a translucent material.

Q.3. What is the direction of light travel called?

Q.4. Which device uses two mirrors to see over obstacles?

Q.5. What do we call the left-right reversal in a mirror image?

Q.6. What happens when light falls on a polished or a shiny surface?

Q.7. What is reflection of light?

Q.8. Why we are not able to see the candle flame through a bent pipe?

Q.9. How can we change the path of light?

Q.10. What happens when light falls on a mirror?

For Worksheet Solutions, go to Worksheet Solutions: Light: Shadows and Reflections

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FAQs on CBSE Class 7 Science Chapter 11 Light Worksheet - Free Download

1. What is the difference between a shadow and a reflection?
Ans.A shadow is produced when an opaque object blocks light, creating a dark shape on a surface, while a reflection occurs when light bounces off a smooth surface, creating an image of the object.
2. How can we create an enlarged image using mirrors?
Ans.An enlarged image can be created using a concave mirror, which can focus light and magnify objects placed within its focal length, making them appear larger.
3. What are the factors that affect the size of a shadow?
Ans.The size of a shadow is affected by the distance of the object from the light source, the size of the object, and the angle at which the light hits the object.
4. Why do shadows change size throughout the day?
Ans.Shadows change size throughout the day due to the position of the sun in the sky; as the sun moves from east to west, the angle of sunlight changes, causing shadows to lengthen or shorten.
5. Can shadows be colored?
Ans.Shadows themselves are usually grayscale, but the color of the surface onto which the shadow is cast can affect the perceived color of the shadow, particularly in different lighting conditions.
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