物理
力学、受力分析、電気、式を使った解法。
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how is the atmosphere involved in the greenhouse effect? a. it transfor…
B. Gases in the atmosphere trap and retain heat reflected from the surface of Earth.
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what was the social impact of the decision in brown v. board of educati…
It strengthened the growing civil rights movement.
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which do most scientists claim is the cause of earths changing climate?…
C. the burning of fossil fuels
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why do carbon dioxide concentrations and surface temperatures show the …
A. because higher carbon dioxide levels mean more heat is retained in Earth’s atmosphere
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use the following information to answer questions 13 - 16 * 13. which d…
C. Data point C
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which of the following statements best supports the data? * increasing …
B. Increasing the speed of an object increases that object’s kinetic energy, which can move the box further.
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use the following data table to answer questions 10 - 12. 10. according…
When the mass of the cart was doubled, the distance the box moved also doubled.
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in many contact sports, players are required to wear helmets. using the…
Helmets lower the amount of force felt by the player in a collision.
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multiple choice question which process occurs when a dense oceanic plat…
subduction
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how do airbags keep drivers and passengers safe in a collision? * airba…
Airbags lower the force of the impact.
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usa el calendario para responder. escribe el número (in digits). 1. ¿cu…
1. 3 2. 3 3. Cierto 4. alta: thirty - three, baja: twenty 5. alta: forty, baja: twenty - seven
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which is the boundary where two tectonic plates collide? o transform pl…
convergent plate boundary
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multiple choice question what is a system of mountain ranges on the sea…
mid - ocean ridge
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what do we add to alt? a a description of the image b nothing c the cit…
- First question: A. A description of the image - Second question: B. `<img src = "cat.jpeg" alt = "cat sleeping">` - Third question: A. `tree - frog.jpeg`
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question 1 (1 point) which way is the correct way to add an image to a …
- Question 1: C. `<img src="image.jpg" alt="Image Description">` - Question 2: False
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multiple select question select all that apply why did other scientists…
Earth's rotation cannot make continents move, Continents cannot push through the seafloor without causing fractures.
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harry hesss discovery of seafloor spreading helped to support the conti…
showed that sections of crust could drift apart as the seafloor spread
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law. quartered: given a place to stay what does the third amendment say…
The government cannot force people to keep soldiers in their homes during peacetime.
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second amendment a well regulated militia, being necessary to the secur…
the right to own certain types of weapons
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multiple select question select all that apply which mountains provide …
mountains in Greenland and Norway, mountains in South America and Africa
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true or false question true or false: fossils of massive land animals p…
True
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select all that apply why did other scientists reject the continental d…
Earth’s rotation cannot make continents move, Continents cannot push through the seafloor without causing fractures.
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true or false question true or false: evidence that supports the contin…
True
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5. what is an example of humans over hunting an animal to extinction?
The passenger pigeon.
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2. what is a common issue with recycling plastic grocery bags?
A common issue with recycling plastic grocery bags is that they can get tangled in recycling machinery, causing equipment damage and operational disruptions. Also, they are made f…
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which object would be considered to be in free fall? o one that experie…
one with only gravity acting upon it
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why are satellites placed into orbit at least 150 km above earths surfa…
to avoid air resistance
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the chart shows the speeds at which four objects are launched into the …
Y and Z
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two satellites, x and y, are orbiting earth. satellite x is 1.2×10⁶ m f…
Satellite X has a greater period and a slower tangential speed than Satellite Y.
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sid created a chart to summarize characteristics of satellite motion. w…
Centripetal force is perpendicular to the velocity of the satellite.
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what is the only force acting on an object orbiting earth? air resistan…
gravity
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which best explains why astronauts appear weightless when they are in a…
They are falling toward Earth at the same rate as the space shuttle.
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enrique is given information about a satellite orbiting earth. $r = 3.8…
convert the orbital period to seconds
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which best explains why a satellite accelerates? it is always changing …
It is always changing direction.
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8. under the articles of confederation, what power did the national con…
D. the power to create land ordinances # 10.Answer-Explanation Format
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10. which assessment of herbert hoovers presidency is most accurate? a.…
10. B. Although he did not cause the stock market crash, Hoover deserves criticism for his inadequate response to it. 11. D. mutual respect, in terms of being available to support…
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review questions 1. which of the following is a cause of the stock mark…
1. B. investors made risky investments with borrowed money 2. C. stock speculators 3. Hoover believed in limited government intervention (voluntary cooperation among businesses). …
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review questions 1. which of the following films released in 1927 was t…
1. C. The Jazz Singer 2. A. radios 3. D. Charles Lindbergh 4. By introducing the moving assembly line. 5. B. Darwinism 6. D. Billy Sunday
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8) look at the model. then, answer the question and choose the best ans…
Energy is released as an electron jumps to a lower state.
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7) look at the model. then, answer the question and choose the best ans…
\(n = 3\)
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3) choose all that apply. which three postulates are of the bohr model …
- **Question 3**: - Electrons in each orbit contain a specific amount of energy. - Electrons can only travel in discrete orbits at specific distances from the nucleus. - Electrons…
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11) choose the best answer. what equation shows the relationship betwee…
\(E = mc^{2}\) (the fourth option)
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9) choose the best answer. who proved mathematically that there was a d…
9) Albert Einstein 10) Light behaves as an electromagnetic wave.
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what is likely the wavelength of a microwave? radio waves micro- waves …
\(10^{-2}\)
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what has the highest frequency? radio waves micro- waves infrared radia…
gamma waves
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what has the longer wavelength? gamma waves visible light radio rays
radio rays
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5) choose the best answer. what does the following image describe about…
Light is a particle.
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3) choose the best answer. what is the electromagnetic spectrum? the ra…
3) the range of different types of electromagnetic radiation 4) the pattern observed when light passes through a prism and is separated by frequencies
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1) choose the best answer. frequency and wavelength are inversely relat…
1. B. decreases 2. A. less; longer
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1. choose the best answer. at what temperature does water freeze in the…
\(32^{\circ}\)
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2. choose the best answer. which kind of energy is stored in an object?…
potential
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5. choose the best answer. which force causes objects that are in conta…
friction
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9) choose all that apply. which three facts are about rutherfords model…
For question 9: - consists of a dense, positively charged core called a nucleus - negatively charged electrons orbiting the nucleus - mostly empty space surrounding the nucleus Fo…
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7) choose the best answer. which part of an atoms structure was discove…
7) nucleus 8) neutrons
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6) drag and drop the scientists with the models. choices thomson crooke…
- First model: Crookes - Second model: Thomson
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4) choose the best answer. what did j. j. thomson theorize? cathode ray…
Cathode rays are particles.
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1) choose the best answer. what allows electrons to enter a geissler tu…
1. cathode 2. Cathode rays were smaller than atoms.
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1. which of the following is a change in the community that can enhance…
1. Offer all residents a clothing protector to prevent their clothing from becoming soiled. 2. Buffet - style, family - style, and restaurant - style. 3. Industry - directed. 4. I…
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the knowledge and tools that people use to manipulate their environment…
T.
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8. choose the best answer using the picture of the measuring tool. unli…
A. conductors ### Question 9
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10. choose the best answer. zoey and owen are each pushing against a dr…
Neither because the forces are balanced.
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11. choose the best answer. which step is missing in the engineering pr…
Choose a solution.
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12. choose the best answer. isaiah runs for exercise. he runs 6.2 km in…
12. \(0.3\) km/min 13. static friction
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14. choose the best answer. the ____ says that the total amount of ener…
14. law of conservation of energy 15. Newton's first law of motion
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josie takes her dog for a walk in her neighborhood. what is their displ…
80 m
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review questions 1. how were the new england textile mills planned and …
1. C 2. D 3. (Explanation - increased availability of goods) 4. B 5. B 6. C
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21. match the sentences with the terms. thermal energy is transferred w…
1. Thermal energy is transferred when particles of substances collide - conduction 2. Electromagnetic waves transfer thermal energy from one object to another - radiation 3. This …
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4) choose the best answer. what is the purpose of a model? explain how …
4. explain a natural phenomenon 5. study things that are very small or hard to see, save time and money before making a product
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2) choose the best answer. sunlight is an example of a transfer of ther…
2) C. radiation 3) D. conduction
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1) match the descriptions with the terms. radiation a state in which ob…
- radiation: the transfer of thermal energy from one object to another using electromagnetic waves - thermal equilibrium: a state in which objects in physical contact are at the s…
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6) choose the best answer. what does the illustration show? transfer of…
a convection current of air in a cycle
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b) check all that apply. choose two facts about meteorologists. a meteo…
- They observe, study, and forecast energy transformations and other phenomena that affect the earth's atmosphere. - Most meteorologists work for the government, military, univers…
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7) check all that apply. choose two facts about energy transformations …
- **Question 7**: Thermal energy is transferred out to the surroundings as heat that is considered waste; Some of the energy is transformed into thermal energy. - **Question 8**: …
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1) choose the best answer. ____ is the sum of all the kinetic energy an…
1. Thermal energy 2. Heat
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3) choose the best answer. which state of matter has the most kinetic a…
3) gas 4) joule
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5) choose the best answer. it takes ____ j to increase the temperature …
4200
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6) choose the best answer. why is there is no such thing as \cold?\ the…
6. There is only a level of thermal energy at which an object has more or less heat. 7. The particles of a gas are spread out, have the weakest attractive forces, and are able to …
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5. which color had the greatest affinity for paper? blue pink red green…
5. blue 6. It separates or moves particles based on their electric charges
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13. choose the best answer. the base unit for mass is _. mole meter gra…
13. gram 14. Remain transparent, Make sure the experiment is repeatable
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an interactionist perspective a. focuses on family decision - making b.…
B. focuses on how people use symbols when interacting
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5. match the correct term to complete the sentence. a scientific is a s…
5. law 6. hypothesis 7. theory 8. radioactive
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20. match the correct term to complete the sentence. a(n) variable does…
20. constant 21. working alone in the lab
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safety ____ are placed on containers to communicate about health, flamm…
1. B. labels 2. Make sure the experiment is repeatable; Remain transparent.
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14. match the correct term to complete the sentence. the variable chang…
14. dependent 15. independent 16. leaving an experiment unattended
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10. choose all that apply. which three things can statistical significa…
- **Question 10**: - whether or not the results from the sample can be applied to the population - whether or not the results are from error - whether or not the results are from …
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how does altitude affect climate patterns in a region? areas at high el…
Areas at high elevations have cooler temperatures.
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1. what safety equipment should always be used when using heat in a lab…
face shield, heat - resistant gloves, heat - resistant pads, lab apron, safety goggles, tongs
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which statement best describes monsoons? they force cool, moist air fro…
They are winds that blow in the opposite direction of a normal wind.
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a longer growing season is a result of _. a. an earlier start to spring…
A. an earlier start to spring
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what must happen for most areas on earth to experience all four seasons…
The axis must be tilted at a certain angle that remains unchanged.
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in december, a city in the southern hemisphere has warm weather all mon…
There is a high concentration of the Sun’s rays in that region.
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which of the following would not cause habitat change? a. building a da…
D. none of the above
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2) choose the best answer. look at the image. what safety equipment is …
eye wash station
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which substance is more likely to be a representative of a whole popula…
phosphate
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which substance has the highest variability? uric acid phosphate oxalate
uric acid
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24. choose the best answer. _____ differs from speed in that objects ca…
- 24. Velocity; velocities - 25. speed
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what is the mean 44ca sensitivity for oxalate? 0.6 0.8 1.3 1
0.8
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due to the increase in global temperatures, the range of plants and ins…
invasive
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fish populations and other aquatic resources are likely to be affected …
D. all of the above
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how does an early onset of spring through climate change affect plants?…
A. their growing and flowering season starts earlier and is longer