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Very Short Answer (One Word) Questions: Light and Shadow | Science Class 5 PDF Download

Q1: What is the energy that enables us to see?
Ans:
Light

Q2: From where is light emitted?
Ans:
The Sun

Q3: What is the term for the straight path that light travels in between two points?
Ans:
Rectilinear propagation of light

Q4: What are objects that emit light and heat called?
Ans:
Luminous objects

Q5: Give an example of a luminous object.
Ans:
The Sun

Q6: What are objects that do not produce their own light but reflect light called?
Ans:
Non-luminous objects

Q7: Provide an example of a non-luminous object.
Ans:
The Earth

Q8: Which objects allow light to pass through them without getting scattered?
Ans:
Transparent objects

Q9: Give an example of a transparent object.
Ans:
Glass

Q10: What type of objects allow light to pass through them partially?
Ans:
Translucent objects

Q11: Provide an example of a translucent object.
Ans:
Butter paper

Q12: What do opaque objects do regarding light?
Ans:
Opaque objects do not allow any light to pass through them.

Q13: Give an example of an opaque object.
Ans:
A table

Q14: When is a shadow formed?
Ans:
A shadow is formed when an opaque object comes in the path of light.

Q15: What do shadows give us an idea about?
Ans:
Shadows give us an idea about the shapes of different objects.

Q16: What is a pinhole camera made of?
Ans:
A pinhole camera is made of a light-proof box, a thin film for a screen, and a small aperture or hole.

Q17: What happens when light enters a pinhole camera?
Ans:
Light from outside enters through the small hole and forms an inverted image on the screen.

Q18: What is a mirror surface usually made of?
Ans:
Glass

Q19: What happens when light is incident on a surface and bounces back?
Ans:
It is reflected, and this phenomenon is called reflection.

Q20: What is the difference between a real image and a virtual image?
Ans:
A real image is formed by the actual convergence of light rays and appears on a screen. A virtual image is the apparent convergence of diverging light rays and cannot be obtained on a screen.

Q21: What does a plane mirror change the direction of?
Ans:
Light

Q22: What is the term for the phenomenon of light bouncing off surfaces?
Ans:
Reflection

Q23: Do real images always form on a screen?
Ans:
Yes

Q24: Can virtual images be obtained on a screen?
Ans:
No

Q25: What enables us to see images in a plane mirror?
Ans:
The mirror changes the direction of light, allowing us to see images.

Q26: What is the term for the clear erect images formed by mirrors?
Ans:
Characteristics of images

Q27: What does a shadow need to be formed?
Ans:
A screen, such as the ground, walls, or surfaces of buildings.

Q28: What do shadows reveal about the shape of objects?
Ans:
Shadows give us an idea about the shapes of different objects.

Q29: What is the phenomenon observed when a beam of light passes through a comb on a mirror?
Ans:
Reflection on a plane mirror

Q30: In what direction does light travel after getting reflected from a plane mirror?
Ans:
In straight lines

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FAQs on Very Short Answer (One Word) Questions: Light and Shadow - Science Class 5

1. What is light?
Ans. Light is a form of electromagnetic radiation that is visible to the human eye and is responsible for the sense of sight.
2. How does light travel?
Ans. Light travels in straight lines called rays. It moves in a straight line until it is reflected or refracted by an object.
3. What causes shadows?
Ans. Shadows are formed when an object blocks the path of light. The area behind the object where light cannot reach is called a shadow.
4. How is a shadow formed?
Ans. When light rays are blocked by an opaque object, they cannot pass through it, and a shadow is formed on the opposite side of the object.
5. What is the difference between a transparent and an opaque object?
Ans. A transparent object allows light to pass through it completely, while an opaque object does not allow any light to pass through it, forming a shadow.
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