MCQ Practice
Light Shadows and Refl Ections MCQ Practice for Class 7
Light Shadows and Refl Ections MCQ practice and Class 7 Science revision with Harshali Academy.
4-minute audio preview
FAQ
What is the difference between luminous and non-luminous objects?
Luminous objects emit their own light, while non-luminous objects reflect light from other sources. You can listen to detailed explanations on Harshali Academy.
Why do fireflies glow only at night?
Fireflies produce light to communicate, especially during the night when it is dark. Harshali Academy’s audio lessons explain this beautifully.
How do shadows form?
Shadows form when an opaque object blocks the path of light, preventing it from reaching a surface. Learn more examples by listening to the chapter on Harshali Academy.
Why is light pollution harmful to fireflies?
Light pollution reduces natural darkness, making it difficult for fireflies to communicate using their light. Harshali Academy discusses this environmental impact in the chapter.
How does reflection help us see objects?
Reflection allows light to bounce off objects and enter our eyes, enabling us to see them. Harshali Academy’s lessons provide clear examples of this concept.
Important exam questions with answers
What are luminous objects? Give two examples.
Luminous objects produce their own light. Examples include the Sun and fireflies.
Does the Moon produce its own light? Explain.
No, the Moon does not produce its own light; it shines by reflecting sunlight.
How does light travel? How can you observe this?
Light travels in a straight line. This can be observed when sunlight enters a room through a small window or when a torch beam travels straight in the dark.
Key concepts from this chapter
- Luminous objects produce their own light, e.g., Sun, stars, fireflies.
- Non-luminous objects do not produce light but reflect it, e.g., Moon, planets.
- Light travels in a straight line.
- Shadows are formed when an opaque object blocks light.
- Reflection of light helps us see non-luminous objects.
MCQ practice focus
In Class 7 Science Chapter 11, "Light: Shadows and Reflections," we meet Keshav, a city boy who discovers the magical glow of fireflies during his village visit in the Western Ghats. This chapter takes students on an exciting journey to understand how light behaves, the difference between luminous and non-luminous objects, and the way light travels in straight lines. Harshali Academy brings this chapter to life by connecting these concepts with real-life examples like moonlight and vehicle headlights. Listening to the full chapter on Harshali Academy helps students grasp these ideas clearly and relate science to their everyday world. Use the concept list and exam questions here to convert Light Shadows and Refl Ections into MCQ practice, one idea at a time.
Hindi explanation
कक्षा 7वीं विज्ञान के अध्याय 11, प्रकाश: छायाएँ और परावर्तन में हम केशव नाम के एक लड़के की कहानी सुनते हैं, जो अपने गाँव में जुगनुओं की चमक देखकर आश्चर्यचकित होता है। इस अध्याय में प्रकाश के स्रोत, प्रकाश की यात्रा और छायाओं के बारे में सरल भाषा में समझाया गया है। हर्षाली अकादमी पर इस अध्याय को सुनकर विद्यार्थी आसानी से इन विषयों को समझ सकते हैं।
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