All Questions Question #1 Which of the following surfaces reflects the most light?
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1 All Questions Question #1 Which of the following surfaces reflects the most light? A. concrete sidewalk yellow cloth tree trunk Answered: aluminum foil Question #2 How is all sound produced? A. light Answered: vibration electricity heat Question #3 The vibrations that cause sound can travel through A. solids. liquids. gases. all of Answered: these Question #4 Jenny plucked a tight string softly, then harder. What happened when Jenny plucked the string harder? A. The pitch got lower. The sound was quieter. Answered: The sound was louder. The pitch got higher. Question #5 (1 of 12) [3/20/ :36:23 AM]
2 W. Ear drum vibrates. X. Air around tuning fork vibrates. Y. Tuning fork vibrates. Z. Tuning fork is hit. Which of the following shows the steps above in the order that they must occur for someone to be able to hear the tuning fork? Answered: A. Z Y X W Y Z X W Z X Y W W X Y Z Question #6 The pitch of a sound is how high or low the sound is. Which sound would most likely have the highest pitch? A. thunder man's voice rumble of a heavy truck Answered: a whistle Question #7 A car that reflects orange light will be which of the following colors? A. brown Answered: orange red (2 of 12) [3/20/ :36:23 AM]
3 yellow Question #8 Light sources create rays of light. These rays leave the source and travel in a line until they hit a surface. A. curved Answered: straight bent broken Question #9 Jenny plucked a tight string. Which of the following best describes the way sound travels to Jenny's ears from the plucked string? The vibrations of the string make the air vibrate which makes Jenny's ear drum Answered: A. vibrate. Air waves carry the sound to Jenny's ears. The vibrations of the string make Jenny's ears vibrate. The air blows the sound to Jenny's ears. Question #10 When particles in a solid, liquid, or gas vibrate, they can produce Answered: A. sound energy. magnetic energy. solar energy. electrical energy. Question #11 Which of the following statements is true? A. Something must first produce a sound before it can produce a vibration. Answered: Something cannot produce a sound if it also produces a vibration. Something must first produce a vibration before it can produce a sound. Something can produce a sound without producing a vibration. Question #12 Barry fixes his tie by looking at it in the mirror. (3 of 12) [3/20/ :36:23 AM]
4 How does the light coming from Barry's tie reach his eyes? A. It is refracted off of the mirror. It moves in a circle toward his eyes. It travels straight from his eyes to his tie. Answered: It is reflected off of the mirror. Question #13 Mariah learned in science class that sound is made from vibrations. When an object vibrates more quickly, it produces a higher-pitched sound. Mariah designed an investigation using a guitar. The strings on a guitar each have a different thickness. Mariah labeled the strings from 1 to 5, making the thinnest string #1 and the thickest string #5. Then she plucked each string on the guitar and wrote down the number of the strings in order from lowest pitch to highest pitch. Investigation of String Thickness & Pitch Lowest Pitch String #5 (thickest) Highest Pitch String #4 String #3 String #2 String #1 (thinnest) Based on her data, Mariah could conclude that string #1 A. does not vibrate. (4 of 12) [3/20/ :36:23 AM]
5 has the loudest volume. is the longest string. Answered: vibrates the fastest. Question #14 Which of the following materials is the best to reflect sound? A. fabric people Answered: tile grass Question #15 Which of the following sounds would be produced by fast, weak vibrations? high-pitched, loud A. sound low-pitched, loud sound low-pitched, soft sound high-pitched, soft Answered: sound Question #16 Light behaves differently when it strikes different kinds of materials. Some materials allow light to pass through them. Other materials absorb or reflect the light instead. Two kinds of materials are shown above. Water is a transparent material and is shown in image I. A metal can is an opaque object and is shown in image II. Which of the following correctly compares the way that light behaves when it strikes (5 of 12) [3/20/ :36:23 AM]
6 transparent or opaque materials? Opaque materials allow the same amount of light to pass through them as A. transparent objects do. Correct Answer: Opaque materials allow less light to pass through them than transparent objects do. Opaque materials allow more light to pass through them than transparent objects do. Answered: Question #17 Directions: Select the correct diagram. Opaque materials do not absorb light, whereas transparent materials do absorb light. Which of the diagrams below best shows how refraction makes a straw look when the straw is sitting in a glass of water? (6 of 12) [3/20/ :36:23 AM]
7 Question #18 Andrew can see through his car windows, which are made of glass. But he can also see that some objects are reflected in them, including the tree branches that are reflected below. Which of these best explains this? Answered: A. The glass allows some light to pass through but some light is reflected. The glass absorbs all of the light that hits it and does not reflect any. The glass reflects all of the light that hits it and does not allow any to pass through. The glass allows some light to pass through but most of the light is absorbed. Question #19 In the picture below, the impalas can be seen in the water. (7 of 12) [3/20/ :36:23 AM]
8 What happens to light at the surface of the water that creates the upside down image of the impalas? Answered: A. The light is reflected. The light is absorbed. The light is refracted. The light is turned into sound. Question #20 Renee hits a steel hammer against a metal pole, producing a loud sound. She then wraps the head of the hammer in a piece of cloth. (8 of 12) [3/20/ :36:23 AM]
9 If Renee uses the same force to hit the pole with the cloth-covered hammer, what type of sound will be produced? the same A. sound no sound Answered: a quieter sound a louder sound Question #21 The pencil in the picture below is completely straight, but it appears not to be. (9 of 12) [3/20/ :36:23 AM]
10 Why does the pencil look like it is broken? A. The water changes the shape of the pencil. Answered: The light traveling from the pencil is refracted as it moves from the water to the air. The water reflects all of the light that comes into contact with it. The water absorbs all of the light that hits the pencil. Question #22 Directions: Select each correct entry from the table. Which of the following kinds of substances can sound waves travel through? solids liquids gases Question #23 Which type of energy can be sensed by the ears? Answered: A. sound energy thermal energy electrical energy light energy Question #24 Directions: Select the words that make the sentence a true statement. Sound waves move at different speeds in different materials. Sound travels faster through than through Question #25 (10 of 12) [3/20/ :36:23 AM]
11 Light from a lamp shines on a book. Julie can read the book because light is or bounced off the page toward her eye. A. refracted absorbed Answered: reflected all of these Question #26 The airplane windows in the picture are transparent. Which of the following must be true about the windows? A. Only a little bit of light can pass through the window. Answered: Most of the light bounces back off of the window. Light passes through the window easily. (11 of 12) [3/20/ :36:23 AM]
12 No light is able to pass through the window. Question #27 In which of the following situations is light most likely to be reflected? A. when it travels through outer space Answered: when it travels through water and then through air when it strikes a dark-colored object when it strikes a shiny object Copyright 2014 Edmentum - All rights reserved. (12 of 12) [3/20/ :36:23 AM]
Copyright 2014 Edmentum - All rights reserved.
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