物理
运动学、受力分析、电学与方程推导。
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knowledge check let’s see what you’ve learned. question 2 of 10 when sh…
When they are stronger or last longer than usual.
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question 5 what type of values can a numpy array contain? only values o…
Only values of a single type. It selects elements corresponding to True in the boolean array.
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drag each to the correct location on the chart. which food items are tc…
TCS Food: beef steaks, codfish fillets, baked beans and rice, raisin muffins Non - TCS Food: raw mushrooms, granola bars
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milk car competition data - jamie 500ml distances: - top of ramp – bott…
To solve these problems, we first need to calculate the velocities for each section (since velocity is required for acceleration and other calculations). Let's assume the initial …
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knowledge check let’s see what you’ve learned. question 10 of 10 stress…
it lasts for a long time
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knowledge check let’s see what you’ve learned. question 9 of 10 which o…
B. Avoiding challenges and stress
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knowledge check let’s see what you’ve learned. question 8 of 10 which o…
Improved concentration and performance
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knowledge check let’s see what you’ve learned. question 6 of 10 what is…
D. It's how you react to your environment.
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what physical feature separates china and india? a. the himalayas b. hi…
A. The Himalayas
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knowledge check let’s see what you’ve learned. question 5 of 10 to stay…
○ your physical health.
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knowledge check let’s see what you’ve learned. question 4 of 10 to redu…
talking with a friend.
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knowledge check let’s see what you’ve learned. question 3 of 10 which o…
C. A fixed mindset.
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question 5 what type of values can a numpy array contain? only values o…
Only values of a single type. It selects elements corresponding to True in the boolean array.
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knowledge check let’s see what you’ve learned. question 2 of 10 mental …
helps you deal with life's challenges.
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question 1 of 10 which of the following determines your mental health? …
Your emotions, behaviors, and thoughts.
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11 multiple choice 1 point fossils of clam shells are found in the appa…
B. The area was once under water during the Paleozoic Era.
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the diagram above shows part of a geologic rock layer cross section. wh…
Rock layers Q and Z were originally flat, and later became tilted.
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the geologic cross sections show the locations of fossilized shells fou…
The fossilized shells at Q and Z are most likely the same age.
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element x has a half life of 5,700 years. when 25% of the original elem…
11,400 years
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the diagram above shows part of a geologic rock layer cross section. ro…
The assumption that "Rock layer A could have formed 50 million years ago" is incorrect.
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17 multiple choice 1 point which of the following is used to put a near…
C. radioactive dating
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19 multiple choice 1 point on a field trip, students notice that there …
The fossils most likely formed as the rock layer formed.
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x and y in the diagram above are both marine fossils which of the follo…
Both marine fossils most likely lived at about the same time.
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4 fifth graders create closed circuits. which bells will ring in the ci…
Circle Bell 1, Bell 2, and Bell 3 (or Bell 1, Bell 2, Bell 4—depending on the exact circuit, but likely 1, 2, 3).
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question 2 what is the expected output of using + between two lists? th…
B. A concatenated list is produced. print(numpy_array[6:11]) Note: The third option in Q3 as written is incorrect; the correct slicing for indices 6 through 10 inclusive is `numpy…
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an object is launched into the air from ground level. according to a qu…
A. $f(t) = -16(t - 3.8)^2 + 231.04$
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what did romans use to support high amounts of weight and reduce the am…
Arches (and vaults, with arches being a primary element) were used by Romans to support high amounts of weight and reduce the amount of concrete (or building material) needed.
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7 multiple choice 1 point the division of earths geologic history into …
D. fossil evidence and geologic events
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question 26 (2 points) a 650v tesla coil creates a static discharge of …
$455\,\text{J}$
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which of the following lists the correct order of the geologic eras? mo…
Most recent - Cenozoic - Mesozoic - Paleozoic Oldest
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5 ordering 1 point show the correct order of the geologic eras from mos…
1. Cenozoic 2. Mesozoic 3. Paleozoic 4. Precambrian
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the image above is of rock layers with an igneous intrusion (h), and a …
Rock layer M formed
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a charged sphere feels a force of 53n due to a charged van de graaf gen…
$0.65\,\text{N}$
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13 0/2 points multiple choice find the change in energy based on the fo…
36 Joules (the correct option is the one with "36 Joules")
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which statement below best describes the undisturbed sedimentary layers…
The geologic principle of superposition indicates that layer 1 is younger than layer 4.
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a charged sphere feels a force of 594n due to a charged van de graaf ge…
4158 N
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when did life on earth begin? a about 4 to 8 billion years ago b about …
b. About 3.5 to 4 billion years ago
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the oldest the earth can be is ______. a 44,570,000,000 years b 2,400,0…
d. 4,570,000,000 years
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when did modern humans first appear? a 2,000,000 years ago b 20,000,000…
c. 200,000 years ago
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which answer choice best completes the blanks in the statement? the sto…
C. cyclone; South
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a red metal ball with a charge of 3mc touches a blue metal ball with a …
$-0.5\,\text{mC}$ *(Note: For the required diagram: Before touching, draw a red ball labeled $3\,\text{mC}$ and a blue ball labeled $-4\,\text{mC}$. After touching, draw both ball…
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earth formed about and a half billion years ago.
four
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7 multiple choice 1 point which of the following would best describe th…
B. Dinosaur, Mesozoic Era
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6 multiple choice 1 point which part of geologic time comprises most of…
B. Precambrian
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find cos(n) given the triangle. enter your answer as a fraction or as a…
$\frac{35}{37}$ or $0.946$
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the people of the city of pompeii were trapped and covered by volcanic …
D. Mold & Cast
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18. in the spaces provided, list any eight of the eleven factors that m…
1. Electrical conductivity 2. Corrosion resistance 3. Cost of the electrode material 4. Mechanical strength and durability 5. Compatibility with the electrolyte 6. Overpotential f…
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2.6 why was tecumseh upset with william henry harrison? a. harrison had…
2.6: A. Harrison had convinced Native Americans in the Indiana Territory to sign an agreement. 2.7: - Governor William Henry Harrison attacked the Prophet's village. - Many Native…
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1 multiple choice 1 point in which type of rock are most fossils found?…
A. Clastic Sedimentary
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matching 5 points match the constitutional term on the left with its de…
- Impeach: Charging an elected or appointed official with a crime. - Veto: Power of the President to reject bills passed by Congress. - Checks and Balances: A system giving branch…
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drag the words to complete the sentences. cold warm humid dry over the …
First blank: dry; Second blank: humid
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6. list two things that are in the slag that forms on top of the weldin…
1. Silicate compounds 2. Manganese oxides
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2 matching 5 points match the constitutional term from the left with it…
- Judicial: The branch of government which judges or interprets the law. - Legislative: The branch of government that makes the law. - Federalism: Government with powers divided b…
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multiple-choice question select the best claim to explain why the gymna…
A. The planet’s mass increased giving the planet a huge force of gravity which is pulling everything towards the center of the planet very hard.
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question 13 (2 points) standard precautions are guidelines to be used d…
They are optional when working with patient blood, body fluid, mucous membranes, and nonintact skin ### Question 14
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part 2 relative dating questions: type your answers in the gray boxes 1…
s: 1. Order (Newest to Oldest): Layer R, Layer J, Igneous Intrusion M, Layer N, Layer Z, Layer I, Layer S, Layer X, Initial deposition of original layers. 2. First Event: Depositi…
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superbugs are bacteria that are resistant to powerful antibiotics. whic…
C. MRSA ### Second Question (Stages of Infection Matching) Assuming the full list of stage descriptions (the third description seems cut off, but we'll work with the visible ones …
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a. a stationary front because a warm air mass is pushing out a cold air…
C. A warm front because a warm air mass is pushing out a cold air mass.
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part 1 absolute dating 1. how many years does it take for half of the m…
15 years ### Question 2
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quiz global patterns of atmospheric movement which statement most accur…
C. Wind is the movement of air from a high - pressure area to a low - pressure area.
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define the term asepsis: question 5 (3 points) match each of the follow…
Asepsis is the practice of preventing the entry of infectious agents into a sterile environment, wound, or patient's body, often through sterilization, disinfection, and maintaini…
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which rock layer in the diagram seems to be the oldest?
Assuming the rock layers follow the principle of superposition (oldest at the bottom), the oldest rock layer is the bottom - most layer in the diagram. If we consider the labeled …
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how do geologists use relative dating? placing rocks in order from youn…
A. Placing rocks in order from youngest to oldest to determine generic timelines
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6.5) describe the two ways simple machines can make work easier. use co…
6.5 a. Simple machines can reduce the amount of force needed to perform a task by increasing the distance over which the force is applied. b. Simple machines can change the direct…
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24. how does the imagery in the first stanza help establish the mood? a…
24. B. By focusing on sound and darkness to create tension and isolation 25. C. It reveals the keeper's past struggles without stating them directly 26. B. Onomatopoeia; it helps …
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matching: match each term to its definition by writing the letter of th…
16. G. quality of life 17. H. socioeconomic risk factors 18. A. behavioral risk factors 19. E. life span 20. F. mortality 21. D. life expectancy 22. B. environmental risk factors …
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discussion questions: 4. which energy resource is better for the enviro…
4. Solar energy is better for the environment. It generates no operational greenhouse gas emissions, has low long-term ecological impact compared to fossil fuels or nuclear, and i…
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4 identify an example of a scientific idea from the past that has been …
An example of a scientific idea from the past that has been changed is the theory of spontaneous generation (the idea that living organisms could arise from non - living matter). …
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6. name three ways, other than bolting, of connecting a workpiece lead …
1. Welding (fusion or spot welding the lead directly to the base metal) 2. Clamping (using a dedicated mechanical clamp to hold the lead to the base metal) 3. Soldering (using a m…
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what is a seminal us document? ○ a document written in the united state…
a document that provides information of historical, social, or legal significance regarding the formation and development of the United States
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global winds occur on a very large scale. they occur because in the atm…
To solve this, we analyze the concepts of global winds and air pressure: ### Choose Answer 1: Global winds form due to **uneven heating** of the atmosphere (from solar radiation, …
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equator south pole why do these winds curve instead of going straight t…
A. Because Earth rotates, the Coriolis effect occurs and changes the direction of the winds, causing them to curve to one side.
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Question was provided via image upload.
### Completion Questions 1. **Answer**: increased *Explanation*: Life expectancy in the US has generally risen over time due to medical advances, better nutrition, etc. 2. **Answe…
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5. the construction crew is digging a basement for a new home. if the b…
10000 cubic feet of dirt
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north pole equator south pole trade winds trade winds why do these wind…
The winds curve because of the Coriolis effect, which is caused by the Earth's rotation. The Earth's rotation deflects the moving air (trade winds) as they travel toward the equat…
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costs and benefits of renewable and nonrenewable energies bellwork: 1. …
1. Renewable energy is a naturally replenishing energy source that is essentially inexhaustible on human timescales, while nonrenewable energy is a finite resource formed over geo…
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which of these would not be considered a constraint for solving the eng…
The color of the egg.
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which of the following describes the statement below? \eggs are fragile…
The statement provides constraints or specifications for solving the problem.
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look at the map. the map shows air pressure on a given day. each line i…
C. The wind will move from areas with higher air pressure to areas with lower air pressure.
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engineering design challenge: egg drop - ask under which of the followi…
B. A 10 N force for 1 second.
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in the lab, you saw that an egg being dropped broke on impact. using wh…
B. A large force was applied to the egg over a small period of time, causing it to break.
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which mineral has a metallic luster, does not react with hydrochloric a…
Pyrite
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Question was provided via image upload.
Are you finding a "zero" OR "vertex": zero
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the images show two samples of the mineral gypsum. which two statements…
- The samples have the same streak. - The samples have the same hardness.
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which statement is not an example of a way a mineral can form? a. disso…
D. Scientists grow a diamond under laboratory conditions.
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practice quiz 1. which of the following best describes creolization? a.…
1. d. The process of two cultures/languages coming together to create a new third culture/language (traditionally due to colonization) 2. d. Lingua franca 3. British colonial expa…
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the correct answers. 6.1 what is a simple machine? use a complete sente…
6.1 A simple machine is a basic device with few or no moving parts that makes work easier by changing the size or direction of a force. 6.2 Work is the transfer of energy that hap…
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question 9 of 10 which two sentences correctly describe an enigma machi…
B. It takes an extremely long time to decrypt its encrypted messages. D. It has rotors that allow for 158,962,555,217,826,360,000 key configurations.
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12. why are index fossils useful for determining the age of rock layers…
B. They lived during a short, specific time period
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3 what do satellites do for weather forecasting?
Satellites perform key functions for weather forecasting: 1. Capture real-time global atmospheric data (cloud cover, temperature, humidity, wind speeds). 2. Track and monitor seve…
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question 4 of 10 which situation best illustrates a trade-off between s…
B. Government and law enforcement want access to encrypted messaging apps to help fight criminals and terrorists.
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question 2 of 10 which statement is the best description of a caesar ci…
B. A message is written in plaintext, then each character is shifted a specific number of spots down the alphabet.
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2.017) ______ which of newtons laws of motion states: \an object at res…
2.017: A. Newton's first law of motion 2.018: C. Newton's third law of motion 2.019: B. Newton's second law of motion 2.020: - moon orbiting around Earth - tides moving in and out…
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what are two advantages of asymmetric encryption? a. it makes use of tw…
A. It makes use of two keys making it difficult to crack both. D. It uses larger key sizes that provide maximum security.
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2 name two modern tools used in weather forecasting today.
1. Weather satellites 2. Supercomputers (for numerical weather prediction models)
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select the correct answer from the drop - down menu. read the sentence …
presents Esther’s emotion and inner conflict as ongoing and continuous
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if a penny and a brick were dropped at the same time in the air, what w…
2.012) B. The brick would fall faster than the penny. 2.013) C. Newton's third law of motion 2.014) A. Newton's first law of motion 2.015) B. gravity 2.016) - The laws have always…
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2 name two modern tools used in weather forecasting today 3 what do sat…
1. Weather satellites and numerical weather prediction computer models 2. Satellites capture global images of cloud patterns, atmospheric moisture, temperature, and wind data; the…
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(each question, 5 points) underline the best answers. 2.01) a pattern i…
2.01) repeated 2.02) Inertia 2.03) law 2.04) Earth 2.05) Gravity 2.06) rhythmic; pushing 2.07) increases 2.08) C. how big or small something is 2.09) A. the relationship between t…
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scientist skills: engineering design process consider the situation giv…
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