Integrated Physical Science Module 6 Quiz WGU C165 with 100% correct answers

Classify each example as a mechanical wave or an electromagnetic wave. Light from a flashlight. Wave in a rope. A wave in a slinky spring. The signal from the button you press on the key fob to lock your car doors remotely. Light from a flashlight - electromagnetic Wave in a rope - mechanical A wave in a slinky spring - mechanical The signal from the button you press on the key fob to lock your car doors remotely - electromagnetic As the end of the coiled spring is moved up and down, what kind of wave travels along the coiled spring? A. Longitudinal wave B. Transverse wave B. Transverse wave The diagram illustrates a wave traveling from left to right. The wavelength on the diagram is the distance from A to ________. A. B B. C C. D D. E B. C Waves A and B both travel at the same speed. If wave A has a frequency of 100Hz ( meaning, 100 per second) then what, approximately, is the frequency of wave B? A. 11 Hz B. 100 Hz C. 50 Hz D. 200 Hz D. 200 Hz The amount of energy a sound wave carries from a loud speaker to a listener's ears depends on its _____________. amplitude How does a sound wave carry energy from a loud speaker to the ear of the listener? A. The pattern of compression travels; the air itself remains in about the same place. B. Air currents move with the sound to carry the vibrating molecules to the listener. C. The vibrating molecules move from the speaker to the ear of the listener. D. There is no long range motion of matter. The wave pattern carries the energy. D. There is no long range motion of matter. The wave pattern carries the energy. A difference in which of the following characteristics distinguishes radio waves from X-rays? A. ability to travel in a vacuum B. amplitude C. wavelength D. speed C. wavelength If an electromagnetic wave's wavelength is equal to the diameter of Earth, what kind of electromagnetic wave is it? A. Gamma rays B. microwave C. X-ray D. radio wave D. radio wave If you are told the wavelength of the light emitted by a laser, what could you infer about that light? A. its intensity B. its color C. its amplitude D. its speed in a vacuum B. its color What kind of electromagnetic radiation is commonly use for the following purposes? 1. Medical imaging of bone fractures. 2. Controlling air traffic by locating planes. 3. Verifying the authenticity of a hundred dollar bill. 4. Providing plants with the energy for photosynthesis. 1. X-rays 2. radio waves 3. ultraviolet le light What kind of electromagnetic radiation is likely to cause a nasty sunburn if you do not use sunscreen at the beach? A. radio waves B.ultraviolet C. infrared D. visible light B. ultraviolet Select whether the following characteristics describe sound waves or light waves. 1. travels incredibly fast. 2. is a transverse wave. 3. can travel through a vacuum. 4. requires a mechanical medium. 5. much, much lower frequency. 1. light 2. light 3. sound 4. light 5. sound