Test
Lessons 1 and 2 Quiz
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (30)
1A scientist observing the light given off by a star discovers that this star emits a kind of starlight never before observed by other scientists. Which of the following reactions would NOT be good science?
- AHe contacts other astronomers to help him observe and understand this unusual star.
- BHe extends his idea of what a star is to include this newly discovered object.
- CHe changes his observations to conform to what he has learned form text-books.
- DHe repeats his observations to be sure that he has not made some kind of error.
2An observer listed the following properties of a mineral sample.
A) The object is a dark grey rectangular solid.
B) The object rusts when exposed to rain.
C) The object most likely was purchased from a science catalog.
D) The object is more dense than water.
Which of there statements in an inference?- AA
- BB
- CC
- DD
3What values would be needed to calculate the mass of a solid mineral sample?
- AThe sample's hardness and volume
- BThe sample's density and volume
- CThe sample's hardness and density
- DThe sample's color and hardness
4A student did an experiment to find the density of the mineral pyrite. The student measured and calculated the density of eight samples of pure pyrite. What would a graph of the data look like?
- AA
- BB
- CC
- DD
- AA
5Which of the following is most likely to be an inference?
- AEarth's circumference is approximately 40,000 km
- BEarth's center is composed mainly of iron
- CEarth is shaped like a sphere
- DEarth is the third planet from the Sun
6Quartz is a mineral with a density of 2.63 g/cm^3. If a sample of quartz was dropped into the graduated cylinder shown below, where would the quartz sample come to rest?
- AA
- BB
- CC
- DD
7A student estimated the mass of a mineral sample to be 50g. Measurement showed it was actually 40g. What was the student's percent deviation?
- A20%
- B25%
- C50%
- D100%
8Which is the greatest distance?
- A3 * 10^-8 km
- B8 * 10 ^-3 km
- C8 * 10^3 km
- D3 * 10^8 km
9Why do objects float higher in seawater than they do in fresh water?
- ASeawater is less dense that freshwater.
- BSeawater is more dense than freshwater.
- CSeawater is more pure than freshwater.
- DAll freshwater is polluted.
10When aluminum foil is formed into a loose ball, it can float on water. But when the ball of foil is pounded flat with a hammer, the foil sinks. Why?
- AAluminum is less dense than water
- BThe act of pounding with a hammer, increases the mass of the ball of foil
- CThe act of pounding with a hammer increases the volume of the ball of foil
- DAir caught in the ball of foil makes the ball less dense than the water
11What is the approximate volume of 75 grams of pyrite?
- A15 cm^3
- B50 cm^3
- C72 cm^3
- D150 cm^3
12What is the approximate density of pyrite?
- A0.2 g/cm^3
- B0.5 g/cm^3
- C2 g/cm^3
- D5 g/cm^3
13Lillian looked up into the sky and estimated the clouds to be 1 kilometer above the ground. But the measurements by weather scientists showed them to actually be 10 kilometers above the ground. What was Lillian's percent error?
- A9%
- B10%
- C90%
- D100%
14Which of the following professionals would be least likely to need training in the Earth sciences for his or her occupation?
- Aa water rights lawyer
- Ba plastic surgeon
- Ca mining engineer
- Dan airplane pilot
15According to the graph, which of the following caused the most weather-related fatalities in the United States from 1988 to 2005?
- Afloods
- Blightning
- Cwinter storms
- Dhigh winds
16If government programs could eliminate all fatalities caused by extreme heat and winter storms, how would this most likely affect the number of weather deaths in the near future?
- AWeather deaths would be unchanged.
- BWeather deaths would almost be cut in half.
- CWeather deaths would be cut by a little more than half
- DWeather deaths would be cut by about 80%.
17What was the general direction of movement of Hurricane Katrina from August 25 to August 28?
- ANorth
- BSouth
- CEast
- DWest
18The map shows that Hurricane Katrina came ashore in the continental United States how many times?
- A1
- B2
- C3
- D4
19According to this graphic, when are hurricanes most common in this region?
- AWinter and Spring
- BSpring and Summer
- CSummer and Autumn
- DAutumn and Winter
20According to this graphic, which of the following conclusions is correct?
- AHurricane Katrina struck New Orleans before it had its fastest winds
- BHurricane Katrina struck New Orleans when it had the fastest winds
- CHurricane Katrina struck New Orleans after it had its fastest winds
- DHurricane Katrina struck New Orleans in September
21What was the relationship between the air pressure in Hurricane Katrina and the speed of the hurricane winds?
- AAs the air pressure went down, the wind speed increased.
- BAs the air pressure went down, the wind speed decreased.
- CThe air pressure was not related to the wind speed.
- DThe air pressure remained constant from August 23 to August 30.
22How did the strength of hurricane Katrina change from August 23 to August 30?
- AThe hurricane increased in wind speed for the whole period.
- BThe hurricane decreased in wind speed for the whole period.
- CThe hurricane became weaker over water and stronger over land.
- DThe hurricane became stronger over water and weaker over land.
23What is the mass of Earth?
- ABecause it is weightless, Earth has no mass.
- B.000 000 000 000 000 000 000 6 kg
- C600,000,000,000,000,000,000,000 kg
- D6,000,000,000,000,000,000,000,000 kg
24From the paragraph, we can conclude that...
- AEarth has no mass
- BEarth is the only planet in the solar system
- CScientists have been able to determine Earth's mass
- DAll objects that have mass, also have weight
25How do we know that Earth has no weight?
- AThe moon orbits Earth at a constant distance.
- BEarth orbits the sun at a constant distance.
- CEarth does not move with respect to the sun and moon.
- DEarth has been placed on a very sensitive mass scale.
26A metric ton is 1000 kg. According to the passage above, what is Earth's mass in metric tons?
- A6 * 10^21
- B6 * 10^24
- C1000 * 10^24
- D6 * 10^27
27Given that the density of Eris and Pluto are equal, Eris' size is [blank_start]larger[blank_end] than Pluto.
- Alarger
- Bsmaller
- Cnor smaller or larger
28A(n) [blank_start]astronomer[blank_end] most likely discovered Eris.
- Aastronomer
29If the mass of Pluto is 1.3 * 10^22 kilograms, the mass of Eris is approximately [blank_start]1.651 * 10^22[blank_end] kilograms.
- A1.651*10^22
30Objects that have a density less than that of water will [blank_start]float[blank_end]. Objects that have a density greater than that of water will [blank_start]sink[blank_end]. Objects that have a density equal to that of water will [blank_start]be suspended[blank_end].
- Abe suspended
- Bsink
- Cfloat
- Dbe suspended
- Efloat
- Fsink
- Gbe suspended
- Hfloat
- Isink
Información
- Descripción
- Covers: - Lesson 1 - Lesson 2
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- Usuario eliminado
- Idioma
- English
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