Practice Questions

<p>Compare and contrast luminous and non-luminous objects, providing two examples of each.</p>

<p>Describe what happens to light when it encounters an opaque object.</p>

<p>Name the phenomenon where a shiny surface changes the direction of light.</p>

<p>Calculate the distance of an image from a plane mirror if an object is placed $2.5$ meters in front of it.</p>

<p>Define luminous objects and give two examples.</p>

<p>List three requirements to observe a shadow.</p>

<p>Analyze how light travels through transparent, translucent, and opaque materials. Give an example of each type of material.</p>

<p>Apply the principles of a pinhole camera to explain why the image formed is inverted.</p>

<p>Identify three materials through which light can pass partially.</p>

<p>Explain the working principle of a pinhole camera.</p>

<p>Describe how you can redirect sunlight using a plane mirror and explain the principle behind it.</p>

<p>Apply your understanding of shadow formation to explain why the size of a shadow changes as the object moves closer to or farther from a light source.</p>

<p>Analyze the function of the mirrors in a periscope. How do they allow you to see objects that are not in direct line of sight?</p>

<p>Apply your knowledge of reflection to explain why a shiny metal surface can act as a mirror.</p>

<p>Apply your understanding of light traveling in a straight line to explain why shadows have a distinct shape.</p>

<p>Describe how the size of a shadow changes when an object is moved closer to a light source.</p>

<p>Examine the characteristics of an image formed by a plane mirror. How does lateral inversion affect the image?</p>

<p>Summarize the difference between transparent, translucent, and opaque materials based on how they interact with light.</p>

<p>Recall four characteristics of an image formed by a plane mirror.</p>

<p>Explain why the moon is considered a non-luminous object.</p>

<p>Describe lateral inversion as it relates to images formed by plane mirrors, and provide an example.</p>

<p>Demonstrate how a plane mirror changes the direction of light using a diagram. Explain the term &#39;reflection of light&#39;.</p>

<p>Contrast the shadows formed by opaque and translucent materials when placed in the path of light. Why do they differ?</p>

<p>Demonstrate how to construct a simple pinhole camera using readily available materials. Describe the function of each component.</p>

<p>Analyze what happens to the size of the image in a pinhole camera if the distance between the pinhole and the screen is increased.</p>

<p>Describe the function of a periscope and name the optical principle it utilizes.</p>

<p>Explain how a pinhole camera demonstrates that light travels in a straight line.</p>

<p>Compare and contrast the images formed by a plane mirror and a pinhole camera. Discuss the key differences in their characteristics.</p>

<p>List the steps to make a simple kaleidoscope and explain why different patterns are seen each time.</p>

<p>Analyze how the number and arrangement of mirrors in a kaleidoscope affect the patterns observed.</p>