Physics
Kinematics, force analysis, electricity, and equation-driven reasoning.
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why do males tend to have better cardiorespiratory fitness than females…
A. Males tend to have higher levels of hemoglobin in their blood.
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cardiorespiratory fitness can only be measured through exercise. please…
F. Cardiorespiratory fitness can only be measured through exercise.
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question 17 1 pts the 3k microwave background radiation is one of the k…
True
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aerobic exercise forces the body to provide extra oxygen to the muscles…
T
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question 16 what is the difference between an e6 galaxy and an e2 galax…
The E6 galaxy is more elliptical than the E2 galaxy.
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question 15 2 pts based on the best scientific data and models, astrono…
flat, expanding, but accelerating
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question 14 1 pts the solution to olbers paradox suggests that it gets …
A. the universe is not infinite in age
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question 13 1 pts the branch of astronomy that deals with the study of …
cosmology
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question 12 2 pts if galaxy a is four times more distant than galaxy b,…
4
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the amount of water vapor present in the air is called a barometer is a…
humidity pressure climate Fahrenheit
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what evidence is there suggesting ellipticals may form from the mergers…
A. Two or more nuclei have been found in the cores of elliptical galaxies
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question 9 1 pts you find a galaxy with a red tint, that has little gas…
Elliptical
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question 8 1 pts according to the hubble law the more distant galaxies …
have more redshift.
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question 7 1 pts what is the difference between an sbb galaxy and an sb…
The SBb galaxy has a bar of material passing though the center and the Sb galaxy does not.
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weather refers to the day - to - day state of the in a region. describe…
1. atmosphere 2. Climate 3. Meteorology 4. the atmosphere 5. heat
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question 6 1 pts what was the significance of the hubble deep field obs…
it found a large number of spirals, elliptical and irregulars galaxies
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question 5 1 pts on the largest scales, the universe is made of voids a…
chains of clusters of galaxies
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most recent observations of our universe indicate that the universe is …
actually speeding up its expansion.
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question 3 2 pts what is the hubble classification for a spiral galaxy …
Sc
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question 2 1 pts which property is common to spiral galaxies? star form…
Star formation in large clouds of interstellar medium in spiral arms
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how can climate change impact a regions weather patterns? a. it can lea…
1. A. It can lead to more intense storms, droughts, and shifts in precipitation 2. D. A rainy day in July
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what is the term for long - term changes in temperature and typical wea…
1. d. Climate change 2. a. Weather refers to short - term atmospheric conditions
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what does humidity measure? a. the amount of sunlight in a particular a…
1. C. The amount of water vapor in the air 2. C. It influences weather and climate
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question 1 1 pts astronomers now think the largest component making up …
Dark Energy
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which of the following is a form of precipitation? a. wind and humidity…
- First question: B. Rain, snow, sleet, and hail - Second question: B. To prepare for daily activities and long - term environmental changes
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what can be a direct result of climate change on human activities? a. f…
c. Increased challenges in farming, water supply, and living conditions b. Carbon dioxide
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which wire, when current flows through it, would be surrounded by the s…
The coiled (the loop - shaped) wire will be surrounded by the strongest magnetic field when current flows through it.
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what is the term for producing a current by moving a wire through a mag…
C. electromagnetic induction
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a current is induced in a wire by moving the wire through a magnetic fi…
A. the direction in which the wire moves
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assuming a current is flowing, what increases the strength of the magne…
C. adding more coils to the wire
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a compass needle normally points toward earths magnetic pole, which is …
D. Magnetism surrounding the wire draws the needle toward the wire.
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what is a solenoid? a current - carrying wire with many coils a current…
A. a current - carrying wire with many coils
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linus builds an electrical circuit with a battery and with wires that c…
The field gets weaker.
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how does adding an iron bar to a solenoid affect the magnetic field of …
It increases the magnetic field’s strength.
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the diagram shows a setup for inducing a current in a wire. which chang…
D. moving the wire downward through the magnetic field
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if the current in each wire is the same, which wire produces the strong…
C. a 1 - mm - thick coiled wire with ten loops
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you are trying to induce a current and have put together the setup show…
a magnet
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nineteenth century english scientist michael faraday found that if he m…
B. electromagnetic induction
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use the drop - down menu to complete the statement. increasing the amou…
increases
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which factors affect the strength of an electromagnet? check all that a…
- the amount of current flowing through the wire - the number of coils in the wire - the material of the core
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fill in the word that completes the statement. the direction of the mag…
electric current
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hitler can be described as a fanatical despot because he o supported re…
- "recruited the support of millions of young people and ruled by force."
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which electromagnet is the strongest?
The third electromagnet (from the left, with the most wire coils around the core)
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question 14 3 pts if a galaxy is located at a distance of 18 mpc, and i…
65 km/s/Mpc
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question 13 1 pts what evidence supports an acceleration in the expansi…
the discovery that type la supernova in distant galaxies are 25 percent fainter than expected.
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question 12 2 pts based on the best scientific data and models, astrono…
flat, expanding, but accelerating
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question 11 1 pts according to the hubble law the more distant galaxies…
have more redshift.
-
question 10 1 pts on the largest scales, the universe is made of voids …
chains of clusters of galaxies
-
question 9 2 pts most recent observations of our universe indicate that…
actually speeding up its expansion.
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question 8 1 pts the 3k microwave background radiation is one of the ke…
True
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homogeneity is the assumption that the universe looks the same in all d…
False
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question 6 1 pts the solution to olbers paradox suggests that it gets d…
the universe is not infinite in age
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the given bar graph shows the percentage of gross domestic product (gdp…
16.7% Underestimates by 0.3%
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question 5 2 pts if galaxy a is four times more distant than galaxy b, …
4
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astronomers now think the largest component making up the universe is: …
Dark Energy
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question 2 1 pts what was the significance of the hubble deep field obs…
it found a large number of spirals, elliptical and irregulars galaxies
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use the drop - down menu to complete the statement. changing the direct…
will not
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question 1 1 pts the branch of astronomy that deals with the study of t…
cosmology
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a current - carrying wire with many loops is called a magnetic field. a…
B. a wire coil
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9) alcohol is a a) depressant b) stimulant c) narcotic d) hallucinogen …
a) depressant ### Question 10
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use the drop - down menus to complete the statement. the magnetic field…
The magnetic field lines of a magnet spread out from the \(\boldsymbol{\text{north pole}}\) and re - enter the magnet at the \(\boldsymbol{\text{south pole}}\).
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which statement about earths core helps explain earths magnetic field? …
B. Earth's core is comprised of iron and nickel
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magnets and magnetism quiz complete mr. garcia uses magnets to hold a p…
A. iron
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jill uses a magnet to pick up a nail. then, she touches the nail to a p…
C. The paper clip will fall off of the nail because the nail was only a temporary magnet.
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in an illustration, lines of force are drawn around a magnet to illustr…
A. field
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jolie builds a model of a maglev train. she uses disc magnets to levita…
B. flat, so that the north pole of the magnets on the train point up and the north poles of the magnets on the track point down
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a bar magnet and a second object are hung from metal rods. the diagram …
D. a bar magnet with its south pole on the left (assuming the options are labeled as A: iron bar, B: steel bar, C: north pole left, D: south pole left)
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which statement describes a property of magnets? magnets repel objects …
D. Magnets attract or repel other magnets. (assuming the last option is D, if the options are labeled as A, B, C, D with the last one being D. If the labels are different, adjust …
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which best describes earths magnetic field lines? the field lines go ou…
B. The field lines go out of Earth near the geographic South Pole and enter Earth near the geographic North Pole in an area where the magnetic pole does not align with the geograp…
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the diagram shows the field lines near the poles, x and y, of two magne…
C. X: north, Y: north (assuming the third option is labeled C; but based on the options as presented, the option with X: north and Y: north is the correct one.) Wait, the options …
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which diagram accurately shows earths magnetic field?
(Assuming the first option is correct, but based on standard knowledge, the correct diagram will show field lines originating near the top (magnetic south, geographic north region…
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why does a compass point toward earths geographic north pole? select th…
- Earth's geographic North Pole is close to the magnetic south pole. - Magnets allowed to move freely align themselves to point north. - The north pole on a compass is attracted t…
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use the drop - down menu to complete the statement about earths magneti…
First drop - down: molten iron (and nickel) Second drop - down: moving (convecting)
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maglev trains use magnets on the train and guideway to levitate the tra…
C. north pole of the magnets on the guideway so they repel.
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which diagram shows magnets that will attract each other?
The diagram (the second one in the vertical stack, with top magnet S - N and bottom magnet N - S) shows magnets that attract each other. (Assuming the second diagram has adjacent …
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if a magnet is broken into two pieces, what happens to the magnetic pol…
B. Each piece will still have a north pole and a south pole.
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which statements best describe magnetic fields? select three options. a…
A. A magnetic field is the area around a magnet where a force is exerted on certain objects. D. Magnetic field lines spread out of the north end of the[SSE onError error]
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which statements describe the characteristics of a magnet? select four …
A. A magnet attracts objects containing iron C. A magnet repels other magnets D. A magnet attracts other magnets F. A magnet aligns with Earth’s north pole
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fill in the blank with north or south. a compass always points to earth…
south
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which statement best describes how the tone of society and solitude is …
D. Society and Solitude has a contemplative tone, while Nature has a more lyrical and whimsical tone.
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which statements accurately describe earths magnetic field? check all t…
- The magnetic field lines flow from Antarctica to northern Canada. - The magnetic field is generated in Earth’s core. - The magnetic field is similar to the magnetic field of a b…
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three magnets are placed on a plastic stick as shown in the image. the …
like magnetic poles repel each other
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use the drop - down menu to complete each statement. a north pole will …
First drop - down: repel Second drop - down: attract
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sum of digits by codechum admin write a program that takes an integer i…
```python num = int(input("Enter an integer: ")) sum_digits = 0 while num > 0: digit = num % 10 sum_digits += digit num = num // 10 print("Sum of digits:", sum_digits) ```
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passage 8 urne samples were collected from 4 students on 1 day at 8:00 …
D. Student C at 8:00 P.M., Student A at 8:00 P.M., Student A at 8:00 A.M.
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passage ii urine samples were collected from 4 students on 1 day at 8:0…
A. Student A
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sum of digits by codechum admin write a program that takes an integer i…
```python num = int(input("Enter an integer: ")) sum_digits = 0 while num > 0: digit = num % 10 sum_digits += digit num = num // 10 print(f"Sum of digits: {sum_digits}") ```
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passage ii urine samples were collected from 4 students on 1 day at 8:0…
H. increases, then decreases
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passage ii urine samples were collected from 4 students on 1 day at 8:0…
D. No, because urine samples with the greatest volumes had the lowest color values.
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passage ii urine samples were collected from 4 students on 1 day at 8:0…
J. The 8:00 P.M. urine sample from Student D
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passage 1 students used 2 methods to calculate d, a cars total stopping…
C. between 150 ft and 250 ft
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passage 1 students used 2 methods to calculate d, a cars total stopping…
H. 176 ft
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passage i students used 2 methods to calculate d, a cars total stopping…
B. 40 mi/hr
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passage 1 students used 2 methods to calculate d, a cars total stopping…
F. \( R + B \)
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item 2 10 points while loop counting by codechum admin write a program …
```python n = int(input("Enter a number: ")) i = 1 while i <= n: print(i) i += 1 ```
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the magnetic field lines of a bar magnet spread out from the north end …
A. north end to the south end
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juanita sticks a nail to the end of a bar magnet. she then sticks a sec…
The force of gravity is stronger than the force of magnetism.
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a uniform yellow beam of length, i is attached to a wire at one end. th…
E. \(-Tl\sin(\theta - \beta)\)
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3. a force of 10 n was used to lift an object to a height of 5.0 m. cal…
The amount of work done is \( \boldsymbol{50\space J} \). ### Problem 4:
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science 14 calculating work 1. a force of 6.0 n is needed to push a sle…
The work done is \( 90 \, \text{J} \) ### Problem 2