1) Which object would be attracted to a magnet? a) eraser b) matches c) screws d) leaf 2) Miguel is playing catch with Freddy. When Miguel throws the ball, it travels in an arc-shaped path. The path of the ball is arc-shaped due to the force of Miguel's throw and what other force? a) friction b) gravity c) inertia d) magnetism 3) The picture represents solar cells. Which statement best describes how energy is converted in solar cells? a) Thermal energy is converted into lradiant energy b) Radiant energy is converted into electrical energy c) nuclear energy is converted into chemical energy d) mechanical energy is converted into thermal energy 4) When Voyager 2 was launched from earth, it did not ravel in a straight line. Voyager 2 changed directions when it came close to other planets in the solar system. The diagram shows the paths of Voyager 2. What bestf explains the change in the Voyager's path? . a) The Earth's gravitational pull on Voyager 2 is constantly altering the direction of the satellite . b) The gravitational pull of the planets isn the solar system are affecting the direction of the voyager 2 c) The air thins as the Voyager 2 moves away from the Sun, causing the Voyager 2 satellite to drif d) The Sun's electromagnetic storms are blowing Voyager 2 around like storms on Earth do boats. 5) Which of the following occurs during an energy transformation? a) energy disappearss b) new energy appears c) energy changes form d) matter is created from energy 6) Which of the following accurately describes the orbital path of most planets in our solar system?  a) The orbital path is in a perfect circle. b) The orbital path is in an ellipse, but looks almost cirdcular c) The orbital path is in a large elliptical shape d) the orvital path varies greatly from planet to planet 7) Which of the following represents characteristics of the four planets closest to the sun? a) Larger planets b) Gas giants c) Rocky (terrestrial) planets d) 4 or more moons 8) Mars is very similar to Earth. Which of the following statements describes a property of Earth, but NOT a property of Mars? a) An abundance of liquid water is located on the planet b) One or more moons orbit the planet c) the planet is constantly in motion d) the orbital path is predictable 9) Which of these types of energy conversions occur in a battery-powered flashlight? a) thermal to mechanical b) light to lelectrical c) thermal to chemical d) chemical to electrical 10) Human achievements in space travel have been well documented for the past 70 years. Which of the following events would best complete the timeline of space achievements? Satellites sent into space, animals sent into space on spacecraft,_____________,human walk on the moon, spacecraft lands on mars. . a) Satellite takes pictures of the sun b) humans orbit earth in spacecraft c) NASA is created d) Soviet union sends Sputnik into space 11) Students were asked to make a list of the most vital equipment and resources they would need if they were to go on a space journey that lasted several years. Which of the following lists best describes the materials that would be necessary for human survival on such a journey? a) water storage tank, plants and soil, coal and gasoline, heating/cooling system b) equipment for water production, plants and soil, solar panels, heating/cooling system, equipment for oxygen production c) plants and soil, coal and gasoline, water storage tanks, solar panels, heating/cooling system d) equipment for oxygen production, cattle and livestock, solar panels, plants and soil 12) Many objects within our solar system remain in constant motion and maintain predictable orbital patterns. What force governs the motion and patterns of objects in our solar system? a) The force of gravity keeps the Sun, asteroids and comets orbiting in an elliptical pattern around the Earth b) The force of gravity keeps planets, asteroids, and comets orbiting in an elliptical pattern around the Sunl c) The equal and opposite force between the Sun and the Earth keeps the comets and asteroids orbiting in an elliptical pattern d) The Sun moves in an elliptical pattern and the planets, comets, and asteroids follow the gravity of the Sun in an elliptical pattern 13) The orbital path of the earth around the sun and the orbital of the Moon around the Earth are shown in the diagram. What is stopping the Moon from flying off in a straight line away form the Earth? a) Electromagnetic attraction between the Earth and Moon b) Electromagnetic attraction between the Sun and Moon c) Gravitational attraction between the Earth and Moon d) Gravitational attraction between the Sun and Moon 14) All of the planets in our solar system have about the same- a) Mass b) Diameter c) Shape d) Composition 15) Scientist observed a rocky, rotating object orbiting in space. It was 250 km wide. The rocky object was located several times farther away form the Sun than the Earth. the object is most likely-. a) Venus b) the Moon c) Mars d) an asteroid 16) How is Earth's orbit around the Sun similar to the orbits of other planets around the Sun? a) Each planet's orbit is determined by how fast it rotates b) Each planet's orbit takes about the same amount of time c) Each plane's travels the same distance in it's orbit as the other planets d) Each planet's orbit is controlled by the pull of the Sun gravity 17) A scientist discovered a new object in the sky that was orbiting the Sun. As it approached the Sun, a tail began to appear. Based on the observations, how should the scientist classify the object? a) an asteroid b) a comet c) a planet d) a moon 18) A student was designing a model of the solar system and used a golf ball to represent the Earth. Which two objects could the student use to represent Jupiter and the Moon? a) A baseball as Jupiter and a basketball as the Moon b) a grape as Jupiter and a marble as the moon c) a basketball as Jupiter and a marble as the moon d) a beach ball as Jupiter and a soccer ball as the moon 19) Which of the following best describes meteors? a) Solids with irregular shapes, some of which are larger than Pluto that mostly orbit the Sun between the orbits of Mars and Venus b) Solids that range in size from dust to small rocks that are scattered throughout the solar system, often due to the breakup of comets, that burn in a brief bright display when they enter Earth's atmospher c) Solids make of rock and ice with very elliptical orbits that originate beyond the orbit of Neptune and release gas and dust in a bright display that can last weeks when they pass close to the Sun d) Solids that orbit many planets in our solar system, many of which are asteroids or comets that have been caught by the gravitational pull of the more massive planet the orbit 20) The movements are involved in the relationship between the Earth and the Sun? a) The Sun rotates around the Earth as it revolves to cause day and night b) The Sun revolves around the Earth as it rotates to cause day and night. c) The Earth rotates around the Sun as it revolves to cause day and night d) The Earth revolves around the Sun as it rotates t cause day and night

Unit 8 Science review

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