Year 3 Exam > Year 3 Notes > Year 3 Science > Light and shadows
Light and shadows | Year 3 Science PDF Download
How shadows are formed
- Explanation of Shadows: A shadow is created when an object or a person blocks light, resulting in a dark shape.
- Opaque Objects: Some materials like stone, metal, and wood are considered opaque as they do not allow light to pass through. Instead, light reflects off these objects, forming shadows on the opposite side.
Question for Light and shadowsTry yourself: How are shadows formed when light is blocked by an object?View Solution
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FAQs on Light and shadows - Year 3 Science
| 1. What is the relationship between light and shadows? |  |
Ans. Light and shadows are closely related as shadows are formed when an object blocks the path of light. Shadows are created when light cannot pass through an object, leading to a dark area behind the object where the light is obstructed.
| 2. How does the position of the light source affect the size and shape of shadows? | |
Ans. The position of the light source directly influences the size and shape of shadows. If the light source is closer to the object, the shadow will appear larger and softer. On the other hand, if the light source is farther away, the shadow will be smaller and sharper.
| 3. Can the color of an object affect the color of its shadow? | |
Ans. Yes, the color of an object can impact the color of its shadow. Objects that are transparent or translucent may cast colored shadows, while opaque objects typically cast shadows in shades of gray or black. The color of the light source can also influence the color of the shadow.
| 4. How do shadows change throughout the day? | |
Ans. Shadows change in size and direction throughout the day due to the movement of the sun. In the morning and evening, when the sun is lower in the sky, shadows appear longer. At noon, when the sun is directly overhead, shadows are shorter and less pronounced.
| 5. Why do shadows appear to be the darkest closest to the object casting them? | |
Ans. Shadows appear darkest closest to the object casting them because this is where the least amount of light is able to reach. As the distance from the object increases, more light can reach the area, resulting in a lighter shadow.
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Dec 05, 2024 Last updated |
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