Practice Questions on Light and the Formation of Shadows
1. Fill in the Blanks
- Light travels in a ________ line.
- A shadow is formed when an ________ object blocks the path of light.
- The size of the shadow ________ when the object moves closer to the light source.
- The sun is a ________ source of light.
- At noon, the shadow of an object is the ________.
2. True or False
- Shadows are always colorful.
- Transparent objects form clear shadows.
- The moon is a natural source of light.
- The shape of a shadow depends on the shape of the object.
- Shadows are formed only in the presence of sunlight.
3. Multiple Choice Questions (MCQs)
1. Which of the following is NOT a source of light?
- a) Sun
- b) Candle
- c) Mirror
- d) Torch
2. What happens to the shadow when the light source moves higher?
- a) It becomes longer
- b) It disappears
- c) It becomes shorter
- d) It remains the same
4. Short Answer Questions
- What is a shadow?
- Name three sources of natural light.
- Why do shadows change size during the day?
- What are the three types of objects based on light transmission?
- Explain why the moon is visible at night even though it is not a light source.
5. Long Answer Questions
- Explain the conditions necessary for shadow formation.
- How do shadows change throughout the day? Illustrate with a diagram.
- Differentiate between transparent, translucent, and opaque objects with examples.
- Describe an experiment to show that light travels in a straight line.
- How does the position of the light source affect the size and shape of the shadow?
