Light

Grade 7 Science — Light: 25 practice questions with instant scoring and explanations.

1. Light travels in straight lines. This property is called:
2. The angle between an incident ray and the normal to a surface is called:
3. The Law of Reflection states:
4. A plane mirror always forms:
5. In a plane mirror, the distance of the object from the mirror is:
6. A concave mirror can form a real, inverted, and magnified image when the object is:
7. The focal length of a mirror is:
8. A convex mirror always forms a:
9. The phenomenon of splitting white light into its constituent colors is called:
10. When white light is dispersed by a prism, the color that deviates the most is:
11. The color of light is determined by its:
12. Which color light has the longest wavelength?
13. An object appears to be of different color in different lights because:
14. Sunlight entering a room through a small hole creates a:
15. The pole of a mirror is:
16. A concave mirror has a focal length of 10 cm. Its radius of curvature is:
17. When looking in a plane mirror, your mirror image appears to be:
18. A convex mirror is used as a rear-view mirror in vehicles because it:
19. The rainbow is formed due to:
20. Which of the following colors is scattered the most by particles in the atmosphere?
21. When light enters a denser medium from a rarer medium, it:
22. The image formed by a plane mirror is always:
23. A concave mirror is also known as a:
24. The normal to a surface is:
25. Light from the sun is white because it contains: