Questions and answers by

gaga

Questions (388)

What does the amplitude of a sound wave depend on?Responses pitch pitch loudness loudness wavelength wavelength frequency
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Waves Retest16 of 2816 of 28 Items Question The table shows the speed of sound in four substances. Which substance has the
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Waves Retest15 of 2815 of 28 Items Question Which of the following is true of frequency and volume? Responses The frequency
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Waves Retest14 of 2814 of 28 Items Question Four different waves, W, X, Y, and Z, are represented in the diagram below.
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Waves Retest11 of 2811 of 28 Items Question A student is designing a device that can be used for communication. Which two waves
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Waves Retest10 of 2810 of 28 Items Question When Truman walks across the tile floor in his kitchen, the sound of his shoes is
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Which part of the electromagnetic spectrum has the shortest wavelength?Responses red red infrared infrared microwaves microwaves
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Waves Retest7 of 287 of 28 Items Question Why does white light separate into different colors? Responses refraction refraction
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QuestionA student is investigating two types of waves. Which question can the student ask to determine whether a wave is
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Waves Retest5 of 285 of 28 Items Question A student is instructed to design a device that can allow one user to hear the voice
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QuestionThe pictures show three objects. Match each object with the correct name. Put responses in the correct input to answer
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QuestionA prism disperses white light, forming a spectrum. Which of the following is the best explanation for this phenomenon?
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Question 20 (1 point)Describe how a light wave changes as it travels from the air into water. a It speeds up because water is
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Question 19 (1 point)A student is building a model of a lens that will spread light over the biggest space. Which best describes
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Question 18 (1 point)A student has to create a model of a convex lens. Which property of a convex lens should the student
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Question 17 (1 point)Airport security uses electromagnetic waves to see items inside of luggage without having to open the bags.
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Question 16 (1 point)Why would a baseball player see a baseball flying through the air before he hears the crack of the ball on
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Question 15 (1 point)Some frequencies of ultraviolet light have enough energy to kill bacteria and viruses, but do not have
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Question 14 (1 point)When the pitch of a wave increases, the wavelength of the wave a decreases. b increases. c stays the same.
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Question 13 (1 point)A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a
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Question 12 (1 point)Correctly order the parts of the electromagnetic spectrum from shortest wavelength to longest wavelength.
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Question 11 (1 point)What causes light to slow down? a moving into a vacuum b moving into a less adhesive medium c moving into a
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Question 10 (1 point)A student is investigating two transverse waves. One of the waves is electromagnetic and the other wave is
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Question 9 (1 point)What happens when light waves travel from air through a denser medium? a They continue to travel in a
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Question 8 (1 point)Which of the following statements best describes the relationship between wavelength and frequency? a The
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Question 7 (1 point)Rachel is learning about electromagnetic radiation that comes from the Sun. What types of electromagnetic
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Question 6 (1 point)Which type of electromagnetic waves would be the best to use in an object designed to cook food? a
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Question 5 (1 point)Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into
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Question 4 (1 point)Select all of the following that are correct about mechanical waves. a They can be longitudinal. b They can
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Question 3 (1 point)Different colors absorb and reflect different amounts of sunlight. Which color would make the most sense to
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Question 2 (1 point)On a guitar, the longest string vibrates slowly, and the shortest string vibrates very quickly. What
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The diagram below represents a transverse wave.The wavelength of this wave is equal to the distance between which two points?
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Question 5 (1 point)The data shows the speed of sound through air and sea water at 21°C. How does the speed of sound in sea
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Question 4 (1 point)What is the difference between a reflected and a diffracted sound wave? a A diffracted sound wave bounces
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Question 3 (1 point)Through which of the following would sound waves travel the fastest? a Earth's atmosphere b a railroad track
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Question 2 (1 point)On a guitar, the longest string vibrates slowly, and the shortest string vibrates very quickly. What
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Question 1 (1 point)The pictures show four wavelengths of sound. Which line shows the lowest frequency? a Z b Y c X d W
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Question 5 (1 point)A student must create a mode of a lens. The lens must be able to focus light into a small space. Which best
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Question 4 (1 point)Airport security uses electromagnetic waves to see items inside of luggage without having to open the bags.
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Some frequencies of ultraviolet light have enough energy to kill bacteria and viruses, but do not have enough energy to
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2. 55 views
A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a television. What does this
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Question 1 (1 point)The diagram below shows the frequencies of various types of electromagnetic radiation. image
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____ officially abolished slavery in all areas of the United States ____- granted African American men the right to vote
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Multiple Choice QuestionWhich of Georgia's land policies distributed the MOST land? A. Yazoo Land Fraud B. Land Lotteries C.
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Multiple Choice QuestionBased on the image, which of these options BEST indicates why James Oglethorpe recruited the Highland
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According to the Charter of 1732 which of these is NOT a reason for the British settlement of the colony of Georgia?A. Economics
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wich region is___is home to the highest elevation in Georgia
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is home to the highest elevation in Georgia
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Use the paragraph to answer the question.Luiza clutched her violin under her chin. She felt every eye in the room on her and was
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Textual Evidence Quick Check3 of 43 of 4 Items Question How does textual evidence help a reader make an inference?(1 point)
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What does explicit mean?(1 point)Responses information that is stated directly information that is stated directly information
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What is 0.00000025 expressed in scientific notation?A. B. C. D.
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Which of the following is an irrational number?A. 0.333 B. C. D.
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Which point best represents on a number line?The number line between 0 and 10 shows points A, B, C, and D. The point A is at 2,
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Relation A has two columns x and y. When x is 4, y is 4. When x is 5, y is 5. When x is 5, y is 0. When x is 7, y is 8. When x
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A student makes money by watching the neighbors’ dog. The situation is modeled in the graph below.The graph titled money made
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The graph below shows the distance between a helicopter and an airport.The graph titled distance to airport shows distance in
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5. Write a division problem in which two numbers written in scientific notation have a Sum of 5 x 10^-5.
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4. A corporation earned a profit of $2.5 × 10^4 for 1 × 10^3 days in a row.What was the corporation’s total profit during
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A dime is approximately 1.35 x 10^−1cm thick. The thickness of a dollar bill is approximately 1.2 x10^−2How many times
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A TV show had 3.5 × 10^6 viewers for their first episode and 8.5 × 10^6 viewers for their second episode.How many viewers did
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1. In 2013 the Los Angeles Dodgers opening day payroll was about $2.16 × 10^8 and the Houston Astros opening daypayroll was
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1. Percent Increase or Decrease 2. Name some large number situations that you would want to use SN to solve instead of standard
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6. Write a division problem in which two numbers written in scientific notation have a quotient of 5 x 10^-5.
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4. Pablo divided (6 x 10^8) by (2 x 10^-4), and got a final answer of 3 x 10^-2. Explain what mistake Pablo made, and give the
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3. In 2010, there were about 4 × 10^7 people living in California and about 1 × 10^6 people living in Rhode Island.How many
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1. Exponent Rule for dividing like bases applied to SN: 2. What words tell you to divide: 3. Why is “how many times larger”
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1. Exponent Rule for Multiplication of like bases: 2. Words that tell you to multiply: 3. What happens when you multiply by a
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5. In problem 4, what do you notice between the two answers?
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4.A. 6 x 10^4 - 8 x 10^2= B. 6 x 10^4 - 0.08 x 10^4=
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3. 5.08 x 10^-4 - 3.12 x 10^-5=
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2. 4.29 x 10^6 - 1.68 x 10^6=
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1. In 2012, the population of NY was about 2.4 x 10^7 and the population of Oregon was 4 x 10^5.How many more people live in NY
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1. Before you add or subtract decimals, what must you do? 2. Steps to changing the power of 10 in SN: 3. Words that tell you to
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5. In 2006, the US had a Gross Domestic Product (GDP) of 1.313 x 10^13. The United Kingdom had a GDP of 1.93 x 10^12. Whatwere
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4. 5 x 10^3 + 3 x 10^5 =
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3. 7.35 x 10^-7 + 2.16 x 10^-8
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2. 3.71 x 10^5 + 4.65 x 10^5
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In 2012, the population of NY was about 2.4 x 10^7 and the population of Oregon was 4x10^5. What is the total population of the
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1. In 2012, the population of NY was about 2.4 x 10^7 and the population of Oregon was 4x10^5. What is the total population of
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1. Adding/Subtracting Fractions - we need a _______________ 2. Adding/Subtracting expressions - we need______________ 3.
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19. Write in standard notation: 3.443 x 10^-7
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17. Write in standard format: 2.146e2
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2. Use your weight in pounds to calculate kilograms and grams. Hint: 1kg = 2.205lb.
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1. Convert the speed 1.000m/s (meters/second) to mi/h (miles/hour). Hint: 1mi = 5280 ft and 1 m = 0.000621371 mi
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1. Metric System 2. Metric system as powers of 10 3. Common US measures and conversions defonison?
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Metric System
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1. Metric System 2. Metric system as powers of 10 3. Common US measures and conversions
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5. What do you notice between the negatives and the positive exponents?
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3. Which of these numbers is the least?a. 3.5 x 10^7 b. 3 x 10^7 c. 5 x 10^7 d. 5.5 x 10^7
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The diameter of the planet Mercury is 4.87 x 10^3 kilometers. The diameter of the planet Venus is 1.21 x 10^4 kilometers. The
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1. Order the following from least to greatest: 6.8 x 10^6 , 6 x 10^6 , 6.6 x 10^6 , 6.1 x 10^6
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1. What do you look at to compare numbers in standard form? 2. What do you look at to compare numbers in Scientific Notation?3.
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5. The distance between Earth and the planet Pluto is 3,241,600,000 miles. Write the distance in scientific notation.
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4. Write 0.00000000026 in scientific notation.
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3. Write 872,010,000,000 in scientific notation.
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1. What is this notation on the calculator:1.388e-2 2. Why use Scientific Notation? 3. How do you choose what place value to
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5. Make a table of the powers of 10 from 10^5 to 10^-5.
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3. Write the number 0.0000000678 as the product of a single digit number times a power of 10.
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2. The moon is 238,900 miles from the Earth. Estimate the distance as the product of a single digit number times a power of 10.
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