The box's velocity will B) be 1 m/s. The box's velocity will C) not change. The box will experience D) acceleration. None of the E) above Explanation: The correct answer is The box experiences unbalanced forces and will, The box will experience acceleration. therefore, accelerate. We don't have enough information to know whether the box will slow down or up or to know know how fast the box will travel. Quiz Standard 9 Answer Key Teacher Name: Quiz Generated On: 04-29-2016 1) AM Radio Waves Ultraviolet Light X Rays Visible Light What is true for ALL of the examples of electromagnetic waves? They all move at the same speed A) in a vacuum. They all have the same B) wavelength. They all have the same C) frequency. They all have the D) same energy. None of the E) above Explanation: All of these types of electromagnetic radiation travel the same speed. They are all forms of light, and travel at the speed of light. Sound waves travel fastest through 2) A) air. B) steel. C) water. a D) vacuum. None of the E) above
B) The box's velocity will be 1 m/s. C) The box's velocity will not change. D) The box will experience acceleration. E) None of the above Explanation: The correct answer is The box will experience acceleration. The box experiences unbalanced forces and will, therefore, accelerate. We don't have enough information to know whether the box will slow down or up or to know know how fast the box will travel. Quiz Standard 9 Answer Key Teacher Name: Quiz Generated On: 04-29-2016 1) AM Radio Waves Ultraviolet Light X Rays Visible Light What is true for ALL of the examples of electromagnetic waves? A) They all move at the same speed in a vacuum. B) They all have the same wavelength. C) They all have the same frequency. D) They all have the same energy. E) None of the above Explanation: All of these types of electromagnetic radiation travel the same speed. They are all forms of light, and travel at the speed of light. 2) Sound waves travel fastest through A) air. B) steel. C) water. D) a vacuum. E) None of the above
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