Academic Year First Term. Grade 6 Science Revision Sheet
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1 Academic Year First Term Grade 6 Science Revision Sheet Name: Grade Date: Section: Part A. Science Practice. Circle the letter of your answer 1. What is a wave? A. a disturbance that transfers energy B. a disturbance that transfers matter C. any type of energy that makes particles move D. any type of matter that vibrates back and forth 2. Which type of wave can travel through space? A. light wave B. matter wave C. sound wave D. water wave 3. The diagram shows some properties of waves. Which property of a wave is shown by F? A. period B. frequency C. amplitude D. wavelength Page 1 of 9
2 4. A flashlight shines on a large black towel. What process is demonstrated? A. absorption of light B. diffraction of light C. reflection of light D. transmission of light 5. Which statement best shows that waves carry energy? A. Sounds can be recorded. B. A rainbow shows a spectrum of colors. C. You feel vibrations if loud sounds are played. D. Light shining through some trees makes shadows. 6. A light shines on a blue wall. Which explains what happens with the light as it reaches the wall? A. The wall absorbs all of the colors of the spectrum and reflects none. B. The wall reflects all of the colors of the spectrum and absorbs none. C. The wall absorbs red, orange, green, yellow, indigo, and violet and reflects blue light. D. The wall absorbs blue light and reflects red, orange, green, yellow, indigo, and violet. 7. Waves move energy from one place to another. Which statement is true about how waves move energy? A. A transverse wave transfers energy in the direction of vibration. B. A wave traveling through a medium transfers energy but not matter. C. A wave traveling through a medium transfers both matter and energy. D. A longitudinal wave transfers energy in a direction perpendicular to the direction of vibration. Page 2 of 9
3 8. The wavelength of a wave is less than 450 nanometers. Which color would this wave most likely appear? A. orange B. red C. violet D. yellow 9. Which of the following statements is true for sound waves? A. They can travel through a vacuum. B. They always have the same frequency. C. They move at the same speed in every medium. D. They can be transmitted though solids, liquids, and gases. 10. Which statement can be made based on these data? A. Sound waves move slowest through liquids and fastest in gases. B. Sound waves move fastest through solids and slowest through gases. C. The speed of a sound wave increases as it moves from one medium to another. D. The speed of a sound wave decreases as it moves from one medium to another. Page 3 of 9
4 11. Measures of wave size include A. Wavelength. B. Wave amplitude. C. Wave frequency. D. two of the above 12. The amplitude of a transverse wave is the distance between A. Two adjacent crests. B. Two adjacent troughs. C. A crest and a trough. D. A crest and the resting position. 13. What is the speed of a wave that has a wavelength of 0.5 meters and a frequency of 2 waves per second? A. ¼ m/s B. 1 m/s C. 4 m/s D. 10 m/s 14. Assume that a wave has a fixed speed. If the frequency of the wave increases, its wavelength A. Increases. B. Decreases. C. Does not change. D. May or may not change. 15. The speed of waves depends on their A. Wavelength. B. Frequency. C. Medium. D. all of the above 16. Types of mechanical waves include A. Longitudinal waves. B. Transverse waves. C. Surface waves. D. all of the above 17. The medium of a mechanical wave can be a A. Gas. B. Solid. C. Liquid. D. any of the above Page 4 of 9
5 18. Examples of mechanical waves include all of the following except A. Ocean waves. B. Sound waves. C. Waves in a rope. D. Electromagnetic waves. 19. Which of the following statements about ocean waves is true? A. They travel on the surface of the water. B. They travel deep underwater. C. They are secondary waves. D. They are primary waves. 20. You generate a longitudinal wave when you A. Shake a spring up and down. B. Shake a rope up and down. C. Push and pull a spring. D. None of the above (B): Physical Science Q1: Write (T) for a true statement and (F) for a false statement. Write T or F in the correct box to indicate whether the statements about the diagram are true or false. Statement True False A. The distance between two adjacent compressions of a longitudinal wave is its wavelength. B. Wavelength equals wave speed multiplied by wave frequency. C. A wave caused by a disturbance with greater energy has greater amplitude. D. Waves generally travel most slowly in gases. E. A mechanical wave starts with a disturbance in matter. Page 5 of 9
6 Q2. Fill in the blanks (Mechanical, tsunami, transverse, Crest, vacuum, trough, compression) 1. A wave in a rope is an example of a (n) wave. 2. The highest parts of a transverse wave are called. 3. A (n) wave is a transverse wave that occurs with earthquakes. 4. The parts of a longitudinal wave where particles of the medium are closest together are called. 5. Ocean waves are waves. 6. The lowest point of a wave is called 7. Electromagnetic waves travels trough Q3: Match each term in column (A) with its definition in column (B) A Ans B 1. Rest position a. maximum distance the particles of a medium move from their resting position 2. transverse wave b. highest point reached by particles of the medium in a transverse wave 3. surface c. number of waves that pass a fixed point in a given amount of time 4. Amplitude d. location of particles of the medium in the absence of a wave 5. frequency e. distance between two corresponding points on adjacent waves 6. crest f. part of a longitudinal wave where particles of the medium are spread farthest apart Page 6 of 9
7 7. Longitudinal g. disturbance in matter that transfers energy from place to place 8. rarefaction h. wave in which particles of the medium vibrate in the same direction that the wave travels 9. Hertz i. combined transverse and longitudinal wave 10. Wave speed j. Wave in which particles of the medium vibrate perpendicular to the direction that the wave travels. 11. EM k. matter through which a mechanical wave travels 12. Wavelength l. Electromagnetic waves 13. mechanical m. part of a transverse wave where particles of the medium are lowest 14. Medium n. SI unit for wave frequency 15. Trough o. how far a wave travels in a given amount of time Q4: Answer the following questions: 1. What is wave frequency? What is the SI unit for wave frequency? 2. How can you calculate wave speed? Page 7 of 9
8 3. Calculate the speed of a wave with wavelength of 5m and frequency of 4Hz. 4. What is light? 5. List the different types of Electromagnetic waves (2 items) a. b. c. d. e. f. g. h. i. 6. ROYGBIV stands for? (2 items) R = O = Y = G = B = I = V = Page 8 of 9
9 10. Differentiate between pulse wave and repeating wave. Pules wave Repeating wave 11. Differentiate between mechanical wave and electromagnetic wave Mechanical wave Electromagnetic wave 12. Draw and color a transverse wave. 13. Draw and color a longitudinal wave. Page 9 of 9
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