Science_unit_4_exam.docx

© 2016 FlipSwitch Which of the following choices most accurately compares the amplits Question 6 Study - 2 udes and wavelengths of the two waves? The red wave has a greater amplitude because its height is greater than the height of the blue wave. Both waves have the same wavelength because the distance between crests is the same. They have different frequencies because the amplitude of each wave is different. The red wave has a greater wavelength because its height is greater than the height of the blue wave. Both waves have the same amplitude because the distance between crests is the same. They have different frequencies because the wavelength of each wave is different. The red wave has a greater amplitude because its height is greater than the height of the blue wave. Both waves have the same wavelength because the distance between crests v is the same. They also have the same frequency because the wavelength and speed of each wave is the same. The red wave has a greater wavelength because its height is greater than the height of the blue wave. Both waves have the same amplitude because the distance between crests is the same. They also have the same frequency because the speed and amplitude of each wave is the same. the image. = r

2/ S = I R <) A [ O N © 2016 FlipSwitch What type of behavior is modeled by the image? The image shows two waves overlapping constructively because constructive interference occurs when the same parts of a wave overlap and result in a smaller or larger wave. These waves partially build each other up. The image shows two waves overlapping destructively, because destructive interference occurs when different parts of a wave overlap and cancel each other. These waves partially cancel each other. The image shows two waves overlapping destructively because destructive interference occurs when the same parts of a wave overlap and result in a smaller or larger wave. These waves partially cancel each other. The image shows two waves overlapping constructively because constructive interference occurs when different parts of a wave overlap and result in a smaller or larger wave. These waves partially build each other up. Question 14 o Two sound waves are moving towards each other. A region of rarefaction overlaps with a region of rarefaction. Which of the following choices correctly describes the behavior of sound waves when they overlap as described? Constructive interference; the sound becomes louder because the amplitude increases. Destructive interference; the sound becomes quieter because the amplitude decreases. Constructive interference; the amplitude increases but the volume remains the same. Destructive interference; the sound becomes louder because the amplitude increases. Question 15 o A sound wave with a frequency of 400 Hz is moving through a solid obiject. If the wavelength of the sound wave is 8 m, what is the speed of sound travalina throuah the solid obiect?

B B ® 2 aud O N Question 23 @ Study the image. —_— e © 2016 FlipSwitch Which of the following choices correctly describes the behavior of the light rays when they pass through the lens? The rays will refract and intersect a point double the distance past the focal point. The rays will refract and bend away from each other. The rays will move through the lens without changing direction. The rays will refract so that they intersect at the focal point. Question 24 ° White light moves through a prism and separates into colors in the following order: red, orange, yellow, green, blue, and violet. Which of the following choices correctly describes why the violet ray is at the bottom while the red ray is at the top? Violet light moves slowest through glass while red light moves fastest through glass compared to other visible light. v So violet and red refract at different angles. Red and violet light move at the same speed but have different wavelengths, so they refract at different angles due to their different wavelengths. Red and violet light move at the same speed but have different frequencies, so they refract at different angles due