This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 11 Light – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 11 Light Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A form of energy that you can see is ..... A) Sound. B) Light. C) Thermal. D) Nuclear. Show Answer Correct Answer: B) Light. 2. Material that allows light to pass through allowing you to see "clearly" to the other side A) Opaque. B) Translucent. C) Transparent. D) None of the above. Show Answer Correct Answer: C) Transparent. 3. A concave lens A) Used by dentist to see an enlarged image of teeth. B) The image is erect and smaller in size than the object. C) All the above. D) None of the above. Show Answer Correct Answer: B) The image is erect and smaller in size than the object. 4. A concave mirror produces a magnification of +4. The object is placed: A) At the focus. B) Between focus and centre of curvature. C) Between focus and pole. D) Beyond the centre of curvature. Show Answer Correct Answer: C) Between focus and pole. 5. A piece of curved glass, plastic or other material that refracts light. A) Refract. B) Reflect. C) Lens. D) Shadow. Show Answer Correct Answer: C) Lens. 6. Why does light refract? A) Speeds up. B) Gets hot. C) Slows down. D) Gains energy. Show Answer Correct Answer: C) Slows down. 7. If the light has a longer wavelength, it has a lower energy A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 8. Speed of light A) 3000 m/s. B) 30 000 m/s. C) 30 000 000 m/s. D) 300 000 000 m/s. Show Answer Correct Answer: D) 300 000 000 m/s. 9. Darker colors absorb more light, which is changed into heat and causes an increase in temperature. Lighter colors reflect more light, so they stay cooler. Which of the following roofs would be the warmest on a hot summer day? A) Black roof. B) Beige roof. C) Grey roof. D) White roof. Show Answer Correct Answer: A) Black roof. 10. A convex mirror never produces ..... images. A) Real. B) Enlarged. C) Inverted. D) All are correct. Show Answer Correct Answer: D) All are correct. 11. Which of the following sentences uses the word light, the way a scientist would use the word light when referring to ENERGY? A) Gabby has a smile that can light up any room. B) Barbie has light blonde hair. C) Jay studied in light of his science test this week. D) The students observed the light being refracted in the prism. Show Answer Correct Answer: D) The students observed the light being refracted in the prism. 12. The act of changing its direction when light moves from one transparent media to another transparent media A) Light movement. B) Light reflection. C) Light refraction. D) Lightness. Show Answer Correct Answer: C) Light refraction. 13. Formula to find mirror images is? A) 360/Angle. B) 360/Angle-1. C) Angle/360. D) Angle/360-1. Show Answer Correct Answer: B) 360/Angle-1. 14. The peak of a wave is called as A) Trough. B) Crest. C) All the above. D) None of the above. Show Answer Correct Answer: B) Crest. 15. Opaque materials ..... A) Are clear. B) Create a dark shadow. C) Block all light. D) Creates a dark shadow and blocks all light. Show Answer Correct Answer: D) Creates a dark shadow and blocks all light. 16. How does light travel from a source? A) Around corners. B) In circles. C) Very slowly. D) In a straight line. Show Answer Correct Answer: D) In a straight line. 17. What is the process called when light bounces off a surface? A) Diffraction. B) Refraction. C) Absorption. D) Reflection. Show Answer Correct Answer: D) Reflection. 18. There are how many components of white light? A) 5. B) 6. C) 7. D) 8. Show Answer Correct Answer: C) 7. 19. As the wavelength of light becomes longer, the energy increases. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 20. Meaning of Translucent A) Absorbs all light and makes a shadow. B) Allows light to pass and scatters it. C) Light can pass straight through. D) None of the above. Show Answer Correct Answer: B) Allows light to pass and scatters it. 21. Which colour of light deviates maximum in the dispersion of white light by a prism? A) Violet. B) Blue. C) Green. D) Red. Show Answer Correct Answer: A) Violet. 22. ..... produces light by discharging electricity through a high-pressure vapor. A) Incandescent. B) Halogen. C) High intensity discharge (HID). D) Fluorescent lamp. Show Answer Correct Answer: C) High intensity discharge (HID). 23. Light bends as it travels from air to water. What is the bending of light called? A) Absorption. B) Reflection. C) Refraction. D) Transmission. Show Answer Correct Answer: C) Refraction. 24. A medium that allows SOME light to pass through A) Transparent. B) Translucent. C) Opaque. D) Gas. Show Answer Correct Answer: B) Translucent. 25. Angle of incidence is greater than the angle of reflection. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. ← PreviousNext →Related QuizzesClass 7 Science Chapter 11 Light Quiz 1Class 7 Science Chapter 11 Light Quiz 2Class 7 Science Chapter 11 Light Quiz 3Class 7 Science Chapter 11 Light Quiz 4Class 7 Science Chapter 11 Light Quiz 5Class 7 Science Chapter 11 Light Quiz 6Class 7 Science Chapter 11 Light Quiz 7Class 7 Science Chapter 11 Light Quiz 8Class 7 Science Chapter 11 Light Quiz 9Class 7 Science Chapter 11 Light Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books