Science 10 2nd Quarter Final RUQA PDF

REGIONAL UNIFIED QUARTERLY ASSESSMENT (RUQA) SY 2024-2025 Second Quarter – Grade 10 (Science) GENERAL INSTRUCTIONS. Do not write anything on this test paper. After carefully reading all the questions, reflect all your answers on the separ...

REGIONAL UNIFIED QUARTERLY ASSESSMENT (RUQA) SY 2024-2025 Second Quarter – Grade 10 (Science) GENERAL INSTRUCTIONS. Do not write anything on this test paper. After carefully reading all the questions, reflect all your answers on the separate ANSWER SHEET. Shade the circle that corresponds to your chosen answer. For Items 1-4. Forms of electromagnetic waves have different wavelengths. 1. Which wave has a shorter wavelength than visible light? a. Infrared radiation b. Microwaves c. X-rays d. Radio waves 2. What is the relative wavelength of ultraviolet waves compared to microwaves? a. Longer b. Shorter c. Same d. Cannot determine 3. In terms of wavelength, where do infrared radiation and ultraviolet waves fall? a. Infrared is longer than ultraviolet b. Infrared is shorter than ultraviolet c. Infrared is equal to ultraviolet d. None of the above 4. How does the wavelength of gamma rays compare to that of X-rays? a. Longer b. Shorter c. Same d. Cannot determine For Items 5-9. Electromagnetic waves consist of a spectrum of waves with varying wavelengths and frequencies. 5. Which form of electromagnetic wave has the longest wavelength? a. Gamma rays b. X-rays c. Ultraviolet waves d. Radio waves 6. Order the following forms of electromagnetic waves from longest wavelength to shortest wavelength: radio waves, visible light, infrared radiation, microwaves, ultraviolet waves, X-rays, gamma rays.  2 a. Radio waves, microwaves, infrared radiation, visible light, ultraviolet waves, X-rays, gamma rays b. Gamma rays, X-rays, ultraviolet waves, visible light, infrared radiation, microwaves, radio waves c. Microwaves, infrared radiation, radio waves, visible light, ultraviolet waves, X-rays, gamma rays d. The order cannot be determined without more information. 7. What is the general relationship between the wavelength of an electromagnetic wave and its frequency? a. Longer wavelengths have higher frequencies. b. Longer wavelengths have lower frequencies. c. There is no relationship between wavelength and frequency. d. The relationship depends on the specific type of wave. 8. How do the wavelengths of X-rays compare to the wavelengths of ultraviolet waves? a. X-rays have longer wavelengths than ultraviolet waves. b. X-rays have shorter wavelengths than ultraviolet waves. c. They have the same wavelength. d. The answer depends on the specific type of X-ray and ultraviolet wave. 9. Which type of electromagnetic wave has a wavelength that is useful for seeing objects? a. Radio waves b. Microwaves c. Visible light d. Ultraviolet waves For Items 10-21. The electromagnetic spectrum consists of various regions with distinct wavelengths and applications. 10. Which region of EM waves is commonly used for broadcasting radio signals? a. Infrared b. Radio waves c. Ultraviolet d. X-rays 11. What application is associated with microwaves? a. Cooking food b. Medical imaging c. Navigation d. Photography 12. Which type of EM waves is utilized in medical imaging? a. Radio waves b. Microwaves c. X-rays d. Infrared 13. What application uses infrared waves? a. Night vision b. Radio communication  3 c. UV sterilization d. CT scans 14. Which region of EM waves is used for sterilizing medical equipment? a. Radio waves b. Ultraviolet c. Microwaves d. Visible light 15. For what purpose are gamma rays often used? a. Communication b. Cancer treatment c. Cooking d. Heating 16. What are electromagnetic waves used for? a. Heating food b. Seeing objects c. Sending radio signals d. All of the above 17. What type of electromagnetic wave is used in a television remote control? a. Radio waves b. Microwaves c. Infrared radiation d. Ultraviolet waves 18. Microwaves can be used to cook food. What property of microwaves allows them to do this? a. Their long wavelength b. Their ability to travel through a vacuum c. Their reflection off metal surfaces d. Their short wavelength and high frequency 19. What safety measure is important when using a high-powered radio transmitter? a. Wearing protective eyewear b. Avoiding contact with water c. Limiting exposure time d. All of the above 20. How does the wavelength of an electromagnetic wave relate to its ability to penetrate materials? a. Longer wavelengths penetrate deeper than shorter wavelengths. b. Shorter wavelengths penetrate deeper than longer wavelengths. c. Wavelength has no effect on penetration. d. The relationship depends on the specific material, but generally longer wavelengths penetrate deeper. 21. Why are X-rays used for medical imaging of bones but not for viewing soft tissue? a. X-rays are less harmful to bones than soft tissue. b. Bones are better conductors of X-rays than soft tissue. c. X-rays have a wavelength that is easily absorbed by bones. d. X-rays have a wavelength that can pass through soft tissue but not bones.  4 For Items 22-33. Electromagnetic radiation can have various effects on living things and the environment. 22. What effect can ultraviolet (UV) radiation have on human skin? a. Healing b. Sunburn c. Increased melanin production d. No effect Commented [MA1]: Similar to No.33 23. Which type of EM radiation is known to cause DNA damage? a. Radio waves b. Infrared c. X-rays d. Microwaves 24. How does excessive exposure to infrared radiation affect living tissue? a. It has no effect b. It can cause burns c. It promotes growth d. It enhances vision 25. What environmental concern is associated with increased UV radiation? a. Improved plant growth b. Coral bleaching c. Increased photosynthesis d. Reduced air pollution 26. Which type of EM radiation is commonly used in medical treatments? a. Microwaves b. Gamma rays c. Infrared d. Radio waves 27. How does radiofrequency radiation affect living organisms? a. It improves cellular function b. It has no known effects c. It can cause thermal damage d. It enhances growth 28. What is electromagnetic radiation and how can it affect living things and the environment? a. It is a form of energy that travels in waves and can have both beneficial and harmful effects. b. It is a type of pollution that always damages living things. c. It is invisible light that only affects plants. d. It is a specific type of radiation used in medical treatments. 29. What type of electromagnetic radiation is essential for plant growth? a. Radio waves b. Visible light c. Infrared radiation d. Ultraviolet waves  5 30. Exposure to high levels of ultraviolet radiation can cause sunburn. What part of the EM spectrum is responsible for this effect? a. X-rays b. Gamma rays c. Ultraviolet radiation d. Microwaves Commented [MA2]: Numbers 25 and 33, are similar questions. 31. Some power lines generate electromagnetic fields. Could these fields be a health concern? a. Definitely, they always cause harm. b. No, they do not affect living things. c. Maybe, it depends on the strength of the field. d. The answer depends on the distance from the power lines. 32. How does the wavelength of electromagnetic radiation relate to the potential harm it can cause to living things? a. Longer wavelengths generally cause more harm than shorter wavelengths. b. Shorter wavelengths with higher energy can be more damaging to living tissues. c. The effect depends on the specific type of living thing, not the wavelength. d. All wavelengths of EM radiation are equally harmful. 33. Why is visible light beneficial for plants but ultraviolet radiation from the sun can be harmful? a. Plants use visible light for photosynthesis but are not affected by ultraviolet radiation. b. Visible light has a lower frequency and less energy than ultraviolet radiation. c. The atmosphere blocks the most harmful ultraviolet radiation. d. Plants have developed defenses against ultraviolet radiation but not visible light. For Items 34-38. Light rays travel in straight lines until they interact with objects like mirrors and lenses. These objects can reflect or refract light, forming images. 34. What type of image does a flat mirror produce? a. Virtual, upright, and same size b. Virtual, inverted, and same size c. Real, upright, and same size d. Real, inverted, and same size 35. When parallel rays of light hit a convex lens, how do they converge? a. They focus to a point at a distance less than the focal length. b. They focus to a point at the focal length. c. They diverge further apart. d. They remain parallel. 36. Concave mirrors can be used as shaving mirrors because they: a. Produce magnified, upright virtual images. b. Produce magnified, inverted virtual images. c. Produce shrunken, upright virtual images. d. Produce shrunken, inverted virtual images.  6 37. How does the curvature of a mirror affect the type of image it produces? a. Flat mirrors always produce virtual images, while curved mirrors can produce real or virtual images depending on the curvature. b. Curved mirrors always produce magnified images, while flat mirrors produce unmagnified images. c. The curvature determines the orientation of the image (upright or inverted) in both flat and curved mirrors. d. The curvature affects both the type (real/virtual) and magnification of the image in curved mirrors. 38. When comparing a convex lens and a concave lens, how does the way they refract light differ, and how does this difference affect the image they produce? a. Convex lenses converge with light rays, forming real or virtual magnified images, while concave lenses diverge light rays and always produce virtual, diminished images. b. Both lenses converge with light rays, but convex lenses do so to a greater extent, resulting in a more magnified image. c. Both lenses diverge light rays, but concave lenses do so to a greater extent, resulting in a more diminished image. d. The effect depends on the distance of the object from the lens for both convex and concave lenses. For Items 39-44. Ray diagrams are a helpful tool for understanding how lenses refract light and form images. 39. What can ray diagrams show us about lenses? a. The path of light rays as they bend through the lens, revealing image characteristics like position and type. b. The color spectrum of light passing through the lens. c. The material composition of the lens. d. The magnification produced by the lens without considering light rays. 40. When drawing a ray diagram for a converging lens, which principle should guide how the refracted rays travel? a. They bend away from the normal (perpendicular line) at the point of refraction. b. They bend towards the normal (perpendicular line) at the point of refraction. c. They continue in a straight line after passing through the lens. d. Their direction depends on the color of the light rays. 41. In a ray diagram for a diverging lens, how do the refracted rays typically appear after passing through the lens? a. They converge to a focal point. b. They diverge further apart. c. They become parallel. d. They all refract at the same angle. 42. The focal point of a lens is a point where refracted ray: a. Always bend at a 90-degree angle. b. Converge (for converging lenses) or appear to diverge from (for diverging lenses). c. Remain parallel to each other. d. Completely disappeared.  7 43. How does the curvature of a lens (convex or concave) relate to the way it refracts light rays, as shown in a ray diagram? a. Convex lenses refract rays outwards (diverge), while concave lenses refract rays inwards (converge). This is evident in the direction of the refracted rays in the ray diagram. b. Both convex and concave lenses refract rays inwards, but convex lenses do so to a greater extent, resulting in a more focused image in the ray diagram. c. Both convex and concave lenses refract rays outwards, but concave lenses do so to a greater extent, as shown by the more spread-out refracted rays in the diagram. d. The curvature affects the overall magnification of the image but not how the rays bend in the ray diagram. 44. When comparing a ray diagram for a converging lens positioned close to an object versus one positioned far away, how would the location of the image differ in the diagrams? a. The image would be closer to the lens in both diagrams. b. The image would be farther from the lens in both diagrams. c. The image would be closer to the lens when the lens is near the object, as shown by the image position in the ray diagrams. d. The focal length of the lens determines the image location in both diagrams, regardless of object distance. For Items 45-50. The properties of mirrors and lenses determine their use in optical instruments (e.g., cameras and binoculars). 45. What property of a convex lens allows it to magnify images? a. Flatness b. Curvature c. Thickness d. Color 46. How does the reflective property of a concave mirror benefit telescopes? a. Produces virtual images b. Gathers and focuses light c. Reduces glare d. Increases image size 47. Which type of lens is used in a camera to focus light onto film? a. Concave lens b. Convex lens c. Flat lens d. Cylindrical lens 48. What role do mirrors play in binoculars? a. They capture light b. They magnify images c. They reflect light to enhance focus d. They filter light 49. How does the focal length of a lens affect the field of view? a. Longer focal lengths provide a wider view b. Shorter focal lengths provide a wider view c. It has no effect d. It determines image brightness 50. Why are mirrors preferred over lenses in some optical devices? a. Mirrors are lighter b. Mirrors do not cause chromatic aberration c. Mirrors are cheaper d. Mirrors can produce color images