Physik
Kinematik, Kraftanalyse, Elektrizität und Gleichungslogik.
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question 2 of 10 what is the magnitude of the electric field at a point…
C. \(5.6\times 10^{11}\space N\)
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a negative charge is placed in an electric field that points west. what…
C. East
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question 1 of 10 what is the photoelectric effect? a. electricity used …
B. Electricity produced when light hits metal
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a car coasts up a hill. as it climbs, it slows down. which type of ener…
D. Kinetic energy
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why are force fields used to describe magnetic force? a. magnetic force…
B. Magnetic force acts between two objects that are not touching.
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a feather of mass 0.001 kg falls from a height of 2 m. under realistic …
D. \(KE < 0.196\space J\)
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if a laptop of mass 1.4 kg is lifted to a table of height 0.8 m, how mu…
C. 11.0 J
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a mailman performed 180 j of work lifting a box 0.8 m. how much force d…
C. 225 N
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a force of 203 n is used to move a television 2.3 m. how much work is d…
A. \(466.9\space J\)
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a roller coaster has a mass of 275 kg. it sits at the top of a hill wit…
C. \(40.8\ m/s\)
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which dog has the most kinetic energy? a. a dog of mass 15 kg running w…
D. A dog of mass 10 kg running with speed 6 m/s
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select all the correct answers. what are two reasons why the terrestria…
- They are made of denser objects, which can condense at relatively high temperatures. - They are made of heavier elements, which have a stronger gravitational attraction to the S…
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which of the following is an effect of the electric force? a. two posit…
A. Two positive charges repel each other.
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question 12 of 25 a car with mass 450 kg has a kinetic energy of 16,256…
C. \(8.5\space m/s\)
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in which part of the letter does travis ask for help and reinforcements…
I call on you in the name of Liberty, of patriotism.....to come to our aid, with all dispatch
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while working out, a man performed 2525 j of work in 19 seconds. what w…
A. 132.9 W
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question 10 of 25 if you do not have oil in your cars engine, the parts…
A. It decreases the force of friction.
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8. romantic painters aimed to * a. mirror the artists imagination. b. r…
8. A. mirror the artist’s imagination 9. B. criticized aspects of nineteenth - century life
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1. romanticism emphasized using feelings and emotions over reason. * 1 …
True
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when does a thrown ball start to feel the force of gravity acting on it?
The thrown ball starts to feel the force of gravity acting on it as soon as it is released (i.e., as soon as it is no longer in contact with the thrower's hand and is in the Earth…
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how did the mongol conquests in the 13th century affect trade along the…
They made it safer for traders to travel to China.
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when does a thrown ball start to feel the force of gravity acting on it…
It is always feeling the force of gravity on it.
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the americanese wall this political cartoon summarizes proposed legisla…
D. educational requirements.
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28. for the infants head to more easily pass through the birth canal, t…
fontanels
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question 10 of 25 if you do not have oil in your cars engine, the parts…
A. It decreases the force of friction.
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question 10 of 25 if you do not have oil in your cars engine, the parts…
A. It decreases the force of friction.
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the two bones of the forearm are the: * a. tibia and fibula b. radius a…
- First question: B. Radius and ulna - Second question: B. 206
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26. many cultures use some kind of __________ position during the birth…
upright
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question 9 of 25 you throw a ball straight up into the air. what kinds …
A. Gravitational potential energy and kinetic energy
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question 8 of 25 which fundamental force keeps the nucleus of an atom f…
C. Strong nuclear force
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question 6 of 25 a lemon with mass 0.3 kg falls out of a tree from a he…
C. 5.3 J
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question 5 of 25 a boy throws a ball up into the air with a speed of 8.…
C. 10.1 J
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question 4 of 25 which force keeps planets in orbit around the sun? a. …
D. Gravity
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question 3 of 25 a man with mass 82 kg runs at a speed of 2.8 m/s. how …
B. 321.4 J
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question 1 of 26 which object has the most gravitational potential ener…
C. An 8 kg book at a height of 3 m
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2. identify fill in the blanks to complete the chart. an object that re…
From left to right, top to bottom: artificial satellite; natural satellite; moon; moons; Ganymede (or other large Jupiter moons); Phobos (or Deimos, the small Mars moons)
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what is meant by the phrase \a consistent method of measurement\? a. th…
A. Things are measured the same way each time.
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question 8 of 10 why are experiments often performed in laboratories? a…
D. There are fewer variables to control.
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you performed an experiment to find out what angle would make a cannonb…
A. What is the most interesting way to shoot a cannon?
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question 4 of 10 why is creativity important in constructing scientific…
A. There are many different ways to design an experiment
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question 3 of 10 during an experiment, you take a measurement of 18.3 i…
B. \(46.5\) cm
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question 2 of 10 you are performing an experiment in which you measure …
A. Thermometer
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question 1 of 10 what is one advantage of doing a field experiment inst…
A. A field experiment will account for real - world conditions
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question 10 of 10 a force of 100 n is used to move a chair 2 m. how muc…
\(W = 200\space J\), so the answer is D. 200 J.
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question 9 of 10 a toy performs 100 j of work pushing a chair a distanc…
B. 25 N
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2.2.6 quiz: work and power question 8 of 10 a sled of mass 3 kg slides …
D. - 37.5 J
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question 7 of 10 which situation describes the highest rate of power? a…
C. A weight lifter does 800 joules of work in 0.5 seconds.
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was moving at a rate of 8 m/s, and then sped up to 10 m/s. if the has a…
C. \(2160\space J\)
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22.4 quiz: work and power question 5 of 10 a girl performed 50 j of wor…
A. \( 10\space W \)
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question 4 of 10 an engine performs 2700 j of work on a scooter. the sc…
A. \(6\space m/s\)
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question 3 of 10 a man pushes a sled across the snow, using a force of …
A. \(600\space J\)
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2.2.6 quiz: work and power question 2 of 10 what are the si units for w…
B. Joules
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question 5 / 5 to avoid a situation where someone is tempted to drive a…
All of the above.
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which of these strategies promotes safe drinking practices? drinking sh…
Pacing yourself while drinking
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question 1 of 10 a computer monitor uses 200 w of power. how much energ…
C. \( 2000\space J\)
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alcohol education: safe and smart™ now, take a moment to test your know…
FALSE
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take a look 9. explain why can a solar eclipse not be seen from every p…
A solar eclipse cannot be seen from every point on Earth because the Moon's shadow (umbra and penumbra) only covers specific regions. As Earth rotates and the Moon orbits, only th…
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15. make inferences would humans be able to live unprotected on the sur…
No, humans would not be able to live unprotected on the surface of Titan. The extremely cold temperature would freeze human tissues. The lack of liquid water (a fundamental requir…
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4. analyze concepts does the mass of a planet seem to affect how many m…
Yes, the mass of a planet affects the number of moons. A more massive planet has a stronger gravitational pull, which can capture and hold more moons.
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question 5 / 5 communal sources of alcohol, like punch bowls, can conta…
All of the above
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question 4 / 5 which of the following is a key factor that influences b…
All of the above
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question 3 / 5 which of the following is a reason why alcohol affects t…
Both A and C.
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plans for a new face on the $20 bill: harriet tubmans. tubman was ensla…
- Cause: Tubman helped enslaved people via the Underground Railroad. Effect: Tubman was given the nickname "Moses." - Cause: Jackson passed the Indian Removal Act of 1830. Effect:…
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question 2 / 5 which of the following is a symptom of alcohol poisoning…
breathing irregularly
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question 4 / 5 which of the following is a key sign of alcohol poisonin…
All of the above
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3. analyze methods how can astronomers use rocks from the moon to estim…
Astronomers use radiometric dating on moon rocks. By measuring the decay of radioactive isotopes in these rocks (which are among the oldest in the solar system), they can estimate…
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question 3 / 5 which of the following is a reason why alcohol affects t…
Both A and C.
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select all that apply. which three innovations were critical in shaping…
railroads, skyscrapers, intracity transport
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an object that revolves around a planet is called a these can be
Satellite
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question 1 / 5 what are the risk factors associated with drinking from …
All of the above
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when light hits an object, some of the lights wavelengths are reflected…
- Cause: The shirt absorbs all light wavelengths. Effect: The shirt appears black. - Cause: The shirt reflects all light wavelengths. Effect: The shirt appears white. - Cause: The…
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1. identify during which phase of the moon can a lunar eclipse occur?
A lunar eclipse can occur during the full - moon phase.
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to the fact that the symptoms are similar to the symptoms of other dise…
- Cause: Zika symptoms are similar to those of other diseases. Effect: Many Zika cases may have been misdiagnosed. - Cause: Zika symptoms are mild. Effect: Many people don't reali…
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mount pinatubo is a volcanic mountain near manila, the capital of the p…
- Cause: Scientists saw signs of an impending eruption. Effect: People were evacuated. - Cause: The volcano erupted. Effect: A caldera formed. - Cause: Rain and ash mixed together…
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california standards check 8.4.e know the appearance, general compositi…
They are not considered planets because they do not orbit the Sun directly. Planets must orbit a star (in our solar system, the Sun), while these moons orbit a gas - giant planet.
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read the text. for years, fishermen in bali used dynamite and cyanide t…
Cause: Fishermen used dynamite and cyanide. Effect: Coral reefs collapsed. Cause: Biorock allows polyps to save energy. Effect: Biorock reefs grow more rapidly.
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16. explain how did uranus get many of its smaller moons?
Uranus' smaller moons likely formed from debris produced by collisions. When large objects collided with Uranus or its larger moons, fragments were created. These fragments then c…
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13. identify what are the names of the galilean moons?
Io, Europa, Ganymede, and Callisto.
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read the text. in curling, players use brooms to maneuver a giant stone…
Frankenbrooms caused controversy - Officials banned the brooms. Other brooms were questioned - The WCF and NRC tested the brooms.
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reading check 12. identify what are the names of marss moons? _________…
Phobos and Deimos
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11. compare which types of planets tend to have the most moons, terrest…
Gas giants tend to have the most moons.
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question 4 / 4 eduardo had just graduated from college and has a job in…
Stay home and stay sober. Alcohol can negatively affect his sleep cycle, and he may make poor decisions. He needs to stay focused and get a lot of rest.
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question 3 / 4 drinking alcohol can negatively affect: sleep cycle the …
D. Both A and B
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use the text to compare and contrast marie curie and irène curie-joliot…
- Discovered polonium and radium: Marie Curie (✔), Irène Curie - Joliot (✖) - Won a Nobel Prize: Marie Curie (✔), Irène Curie - Joliot (✔) - Faced discrimination: Marie Curie (✔),…
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20 which statement about the sun is true? a it is the hottest star in t…
B. It is closer to Earth than any other star.
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question 5 / 5 a major reason why drinking can be especially dangerous …
Teen brains have not completely developed until they are in their mid - 20s.
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use the text to compare and contrast galileo galilei and nicolaus coper…
- Believed that all planets orbit the sun: Galileo Galilei (✔), Nicolaus Copernicus (✔) - Used math to prove his theory: Galileo Galilei (✔), Nicolaus Copernicus (✔) - Arrested fo…
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18 based on your research throughout the unit, what are two lines of ev…
1. Cosmic Microwave Background (CMB) radiation. 2. The abundance of light elements (such as hydrogen and helium).
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use the text to compare and contrast paragliding and skydiving. have yo…
- Allows movement in many directions: Paragliding - Involves falling freely through the sky: Skydiving - Requires training with an expert: Paragliding, Skydiving
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16 scientist theorize the universe started with a \big bang.\ according…
The Big Bang theory is supported by several key pieces of evidence: 1. **Cosmic Microwave Background (CMB) Radiation**: - This is a faint glow of light that fills the universe. It…
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15 explain edwin hubbles discovery of the redshift in light from distan…
Edwin Hubble discovered that light from distant galaxies is redshifted. This means the wavelength of the light is stretched, indicating the galaxies are moving away. The more dist…
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13 the main evidence to support an expanding universe originates from t…
A. all the distant galaxies are moving away from Earth.
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how is a totp different from an hotp? a. the timer interval in a totp i…
B. An HOTP changes when a specific event occurs.
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a parent, who is a small business owner, takes their child on a busines…
A. screen lock
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8 stars are gathered together in vast groups known as galaxies. the sun…
- The Sun is a medium - sized star that orbits the center of the Milky Way, bringing with it the planets and other objects in our solar system. - The Sun is located in the spiral …
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6 why does earth get more energy from the sun than from all the other s…
D. The sun is much closer than the other stars.
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with the use of the hubble space telescope, scientists recently discove…
C. The sun is closer to Earth than the runaway star.
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what is the force of gravity on 50 kg couch 4.0 × 10^8m from the earth’…
\(12.5\space N\) (rounded to three significant figures)
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what means of protection can be used to help ensure a browsing experien…
A. Use first - party cookies, D. Use HTTPS
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question 1 / 5 select the statement that best completes the following s…
are more likely to have issues with alcohol addiction as they get older