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In △ABC, m∠A=63° and m∠C=99° . What is the measure of angle B ?(1 point) m∠B = °
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△GHI∼△LKJ, and m∠G=30° , m∠H=80° , and m∠I=70° . What are the measures of angles J , K , and L ? (2 points) m∠J
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Use the image to answer the question.An illustration shows two right triangles with congruent corresponding angles. Triangle A B
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△BCE∼△JKL. If m∠B=89° , m∠C=13° , and m∠E=78° what is m∠J ?(1 point) m∠J=
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If △PQR∼△JKL, which statements are correct?(1 point) Responses ∠P≅∠J and QR¯¯¯¯¯¯¯¯ corresponds to
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If △PQR∼△JKL, which statements are correct?(1 point) Responses ∠P≅∠J and QR¯¯¯¯¯¯¯¯ corresponds to
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Use the image to answer the question.An illustration shows two quadrilaterals, one big and one small. The smaller quadrilateral
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Why can a machine not achieve 100% efficiency in the real world?(1 point)Responses The distance over which a small amount of
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Which car has the highest efficiency? (Assume all cars have the same mass.)(1 point)Responses a car that traveled 20 kilometers
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How is the fulcrum defined?(1 point)Responses the push or pull required to move an object with a lever the push or pull required
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In order to calculate the force exerted to perform work, which formula should be used?(1 point)Responses force = work / distance
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QuestionWhich option correctly describes the relationship between simple machines, a lever, a fulcrum, effort, and load?(1
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QuestionA construction worker uses a pulley system to lift a block. What is one of the purposes of the pulley system?(1 point)
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What is mechanical force?(1 point)Responses the product of the mass of an object and gravitational acceleration the product of
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Use the image of the pulley to answer the question.A photo shows a hook attached to ropes used to lift things. How is this
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Which advantage does a set of stairs have over a ladder that goes straight up?(1 point)Responses The total distance traveled is
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A bowling ball has a mass of 6 kilograms. A person lifts the bowling ball 2 meters above the ground, using a force of about 60
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The Progressive Presidents QuizWhich belief did Presidents Roosevelt, Taft, and Wilson share? (1 point) Responses The federal
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7 of 107 of 10 ItemsQuestion How were muckrakers able to influence American society and ultimately inspire reform? (1 point)
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6 of 106 of 10 ItemsQuestion What was the effect of the Bull Moose Party’s entrance into the presidential election of 1912? (1
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The Progressive Presidents Quiz2 of 102 of 10 Items Question What role did nativism play in federal policy? (1 point) Responses
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QuestionWhat was an unintended consequence of Upton Sinclair’s novel The Jungle? (1 point) Responses adoption of public
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QuestionWhat belief united the Progressive movement? (1 point) Responses that society's problems could be solved that society's
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QuestionWhat did the Salvation Army, the YMHA, the YMCA, and the YWCA have in common? (1 point) Responses They shared the same
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QuestionWhy did African Americans move from the rural South to northern cities, beginning in the late 1800s? (1 point) Responses
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Urbanization1 of 41 of 4 Items Question How did middle class people generally differ from the lower class? (1 point) Responses
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What was the main goal of realists?(1 point) Responses to use humor to bring about change to use humor to bring about change to
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How was President Roosevelt different from the presidents who came before him?(1 point) Responses He supported trusts He
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A pulley system is operating at only 50% efficiency. How could the efficiency be increased? (1 point)Responses by decreasing the
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Efficiency of Machines Quick Check1 of 51 of 5 Items Question Which car has the greatest efficiency?(1 point) Responses a 1,200
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Which car has the greatest efficiency?(1 point)Responses a 1,200 kg car that travels 20 km per liter of fuel a 1,200 kg car that
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A person uses a screwdriver as a lever to open a can of paint. Where is the fulcrum in this situation?(1 point)Responses the
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A shovel performs several different functions. One of these is that it gives mechanical advantage as a lever. When does it act
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Which statement best describes work?(1 point)Responses Work is done when an object continues in motion without a push. Work is
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Which statement best describes energy?(1 point)Responses Energy is the force that causes movement in an object. Energy is the
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Which example represents a class 2 lever?(1 point)Responses a car door being opened and shut a car door being opened and shut
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Use the image to answer the question.An illustration shows a man rolling a drum upwards on an inclined surface. What is the
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Use the image of the pulley to answer the question.An illustration shows a system of two pulleys lifting a block. Lifting the
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Use the picture to answer the question.An illustration shows a man lifting a box using a pulley. What is accomplished by this
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A person gets a running start toward a wall from 5 meters away. The person pushes the wall with a force of 500 newtons, but the
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A soccer player kicks a ball, applying a force of 1,000 newtons over a distance of 0.2 meter. The ball travels 50 meters down
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How is a joule defined?(1 point)Responses It is the force needed to make an object with a mass of 1 kilogram travel 1 meter. It
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How is a joule defined?(1 point)Responses It is the force needed to make an object with a mass of 1 kilogram accelerate by 1
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22 of 2522 of 25 ItemsFeature I am tired of fighting . . . It is cold and we have no blankets. The little children are freezing
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A black and white photograph shows two men working on an early car frame in a line of cars.Question Use the image to answer the
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What was the goal of the reformers who wanted to help Native Americans in the late 1800s?(1 point)Responses to return the land
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Which factor most likely caused a decline in Grange membership?(1 point)Responses wheat prices declined wheat prices declined
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QuestionRadical Republicans had two main goals. First, they wanted to break the power of wealthy planters who had long ruled the
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Why did Southern states use poll taxes, literacy tests, and grandfather clauses as Reconstruction came to an end?(1 point)Respon
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Rival Plans for ReconstructionProposed by President Abraham Lincoln (1863) Republicans in Congress (1864) President Andrew
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Economic conditions in the South were far worse than in the North. Confederate soldiers had little chance of taking up where
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AM waves have a wavelength of approximately 100 meters. FM waves have a wavelength of approximately 1 meter. Which one has a
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Which type of wave can travel through a vacuum?(1 point)Responses mechanical mechanical seismic seismic sound sound light light
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During a baseball game, the sound of the bat hitting the ball can be heard in most parts of the stadium. That sound is weaker at
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A student puts a piece of black paper and a piece of white paper in the same sunny spot. After 30 minutes, she observes that the
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A builder wants to make a room soundproof in a new home. The builder should use materials that _____.(1 point)Responses absorb
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A room with which type of surface will most likely produce an echo?(1 point)Responses glass glass foam foam carpet carpet dirt
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A student drops a rock in a pond and notices that her reflection in the water becomes less clear. Which statement best explains
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How are sound waves different from light waves?(1 point)Responses Sound waves are electromagnetic waves that can travel through
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Waves Unit Test3 of 163 of 16 Items Question Use the table to answer the question. Wave Wavelength (meters) Frequency (hertz) W
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QuestionUse the diagram to complete the statement. An illustration shows the propagation of two waves for a period of one
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Use the passage to answer the question.Every morning, students across town leave their homes an hour before school begins.
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Use the passage to answer the question.An Argument for Noise in the Library While libraries were once known for being places
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Isabella is writing a persuasive essay. Her notes are shown:Note 1: Our school is in need of a lot of landscaping work. Note 2:
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How can a person conducting research determine if an online source is credible?(1 point)Responses determine whether multiple
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Which source would be considered a credible one to use when writing an argument?(1 point)Responses an article on a government
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QuestionThalia is writing a letter to the city council in her town. There is a vacant lot in her town, and some people want to
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Imagine that you are arguing that the park in your city should stay open to the public later in the evenings. Which
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Which sentence might be an opposing claim to the following argument?“Disposable plastic bags should not be used because they
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Which claim could support the argument "The school district should revise its homework policies"(1 point)Responses Every other
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Use the paragraph to answer the question.Keeping a library in your home has many benefits. If you are ever bored, you always
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Select the correct answer from the list.(1 point)Spring is the best season of the year. One reason is that the temperature is
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Select the correct answer from the list.(1 point)Spring is the best season of the year. One reason is that the temperature is
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Use the sentences to answer the question.A beagle makes the best pet for a family with children. Beagles have lots of energy for
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Which word or phrase can be used to emphasize an important point?(1 point)Responses finally finally even though even though
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Clayton wants his grandparents to let him start weightlifting at the local gym. They have concerns about safety, so he wants to
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QuestionWhich phrase describes evidence?(1 point) Responses a statement put forth in support of an argument a statement put
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Claim: Middle school students should be provided with an outdoor recess as part of the school day.Which sentence includes an
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Why is it important to address opposing arguments when writing an argument?(1 point)Responses It strengthens your claim because
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Use the image to answer the question.Which Reconstruction-era political group is depicted in this image? (1 point) Responses
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A bar graph compares the industries of the North and South.Long description:Population: North 71%, South 29% Railroad Mileage:
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"…[The] said Cooper Hughs Freedman with his wife…are to work on said farm and to cultivate forty acres in corn and twenty
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What scale factor will produce a dilated image that is smaller than the original image?(1 point)Responses a negative scale
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If you use a scale factor of 1/5to create a circle with radius 18 cm, what is the radius of the original circle you dilated?(1
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If you use a scale factor of 15to create a circle with radius 18 cm, what is the radius of the original circle you dilated?(1
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If you dilate a rectangle with a width of 16 inches using a scale factor of 4, what will be the width of the dilated
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How does a scale drawing that is larger than the object it represents relate to a geometric transformation?(1 point)Responses It
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What type of transformation of a geometric figure can you relate to a scale drawing?(1 point)Responses reflection reflection
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Which kind of signal does a cell phone use to send a picture through a text message?(1 point)Responses a digital signal, which
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As light moves from air to water, the path of the light can bend and change direction as it continues through the water. What is
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Which statement correctly describes the relationship between wavelength, frequency, and energy?(1 point)Responses Waves with a
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Which type of wave can only be transmitted through matter?(1 point)Responses sound sound light light infrared infrared
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Which type of surface is best for absorbing sound waves?(1 point)Responses glass glass plastic plastic foam foam rock
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Which option is an example of reflection?(1 point)Responses the sound of a siren changing the sound of a siren changing an echo
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A ray of sunlight enters a glass of water and bends, causing the straight straw in the glass to look like it is bent as well.
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An explosion takes place in space. Which type of waves from the explosion can be observed on Earth?(1 point)Responses neither
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Use the table to answer the question.Wave # Frequency (Hz) Wavelength (m) 1 120 5 2 90 7 3 140 2 4 70 8 The table shows the
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Students model a wave by moving the end of a rope up and down. Which statement best explains the type of wave created by this
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There are two types of seismic waves: p-waves and s-waves. Which of the following describes both waves? (1 point)Responses Both
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What do all waves have in common?(1 point)Responses They can shake structures. They can shake structures. They carry and
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