物理
運動學、受力分析、電學與方程推導。
-
a museum sets up a display of fluorescent minerals. which best describe…
Ultraviolet light shining on the minerals will cause them to give off visible light.
-
after the 1600s, how did observations of light being refracted change t…
They began to believe that light acted as waves.
-
what do diffraction and refraction have in common? they both involve in…
They both involve wave interactions.
-
if humans cannot see ultraviolet waves, how can ultraviolet light be us…
Ultraviolet light causes substances to fluoresce and give off visible light.
-
a clothing manufacturer uses lasers to cut patterns in fabric when maki…
Lasers save time by cutting through more layers of fabric.
-
when light bends as it passes from one transparent object to another, t…
C. refracted
-
which statement can be made about waves a and b? wave a has a lower amp…
Wave A has a lower frequency than Wave B.
-
which best describes what occurs when an object takes in a wave as the …
absorption
-
which is a sentence fragment? the next - door neighbors of my elderly g…
The next - door neighbors of my elderly grandparents.
-
an endoscope is a fiber - optic medical instrument that emits light. do…
They are small and flexible.
-
sound wave a is moving through a medium that is decreasing in temperatu…
They will slow down.
-
step 2: check the limits how many calories total does your meal have? 3…
It is time to makeover your meal!
-
step 1: choose your favorite restaurant and list what you typically eat…
Calories: 3425 Grams of Fat: 191.85
-
latitude and longitude describe locations on the earth with respect to …
The temperature decreases by about 1.7° for each 1 degree increase north in latitude.
-
read this passage from the essay this is spinal fusion which describes …
Question 1: The word choices help readers sympathize with the writer's painful experiences. Question 2: The connotations of words can affect the reader's understanding of a work. …
-
2. the role of the securities and exchange commission (sec) is to: regu…
Regulate securities and financial markets
-
check each situation where work would occur. you slide a chair across t…
You slide a chair across the floor. You pick up a box.
-
the scatterplot shows the time it takes for a new hot plate to boil var…
The line of best fit is not reasonable because it has more points below it than above it.
-
what makes earth habitable? after discussing how you would change your …
Earth's habitability is due to its distance from the Sun, a stable atmosphere, presence of liquid water, and a protective magnetic field, along with the Sun's consistent energy ou…
-
class e general knowledge question #43 / 50 a motorcycle has crashed an…
A. You must not attempt to remove the helmet of the motorcycle rider.
-
curso: s/p2 seguridad en servicio automotriz - español actividad anteri…
# Breve explicación: La técnica PASS para un extintor significa Pull (Jalar), Aim (Apuntar), Squeeze (Apretar), Sweep (Barrer). Entre las opciones, la que coincide con este signif…
-
which situation would result in interference? a wave bouncing off an ob…
a wave increasing in energy as it hits another wave
-
which is shown by the letter x? trough amplitude crest wavelength
C. crest
-
which feature of a wave can be calculated using the formula below? numb…
C. frequency
-
the energy of microwaves is less than the energy of ultraviolet light. …
Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.
-
step 1: choose your favorite restaurant and list what you typically eat…
2890
-
a doctor uses an instrument(s) that emits light and allows the doctor t…
D. fiber optics
-
which of these most directly affects what happens to white light when i…
the properties of the object
-
part 1: multiple choice select the best answer for each question from t…
D. dot density map
-
the waves created by two speed boats in a lake interact to form larger …
A. constructive interference
-
part 1: multiple choice select the best answer for each question from t…
D. direction
-
which types of electromagnetic waves have wavelengths that are longer t…
infrared light
-
question 34 4 pts wattage is the product of voltage and amps. if a band…
504
-
part 1: multiple choice select the best answer for each question from t…
D. color
-
which statement best compares the speed of a sound wave moving through …
The sound wave would move faster through the water than through the water vapor.
-
jin has four colorful glass bottles on his windowsill. one is red, one …
red
-
write 746.5 in scientific notation.
$7.465\times10^{2}$
-
ingrid says that a red ball of clay appears red because the clay reflec…
Ingrid is correct. The clay appears red because it reflects red wavelengths.
-
as the temperature of a medium increases, the speed of the sound wave i…
increases because the particles bump into each other more often.
-
when you can do it safely, ____ instead of relying heavily on your brak…
coast to a stop
-
hamish is studying what happens when he sends a sound wave through diff…
Wave 3 will move the slowest.
-
part 1: multiple choice select the best answer for each question from t…
45 degrees North, 9 degrees East
-
which part of the electromagnetic spectrum is nearest to x - rays? micr…
C. gamma rays
-
part 1: multiple choice select the best answer for each question from t…
the prime meridian
-
bees can see into the ultraviolet region of the electromagnetic spectru…
D. a higher frequency and a shorter wavelength.
-
part 1: multiple choice select the best answer for each question from t…
C. shifts in currents of the Atlantic and Pacific oceans
-
question 3 part 1: multiple choice select the best answer for each ques…
absolute location
-
class e general knowledge question #32 / 50 when driving after a heavy …
A. Wet brakes
-
environmental conservation movement - #22 educator 1 multiple - choice …
C. Conservationists like Gifford Pinchot
-
question 1 0.5 pts part 1: multiple choice select the best answer for e…
A. several cities located near bodies of water
-
a plane is traveling at a constant speed of k kilometers per hour. whic…
\((1,K)\)
-
class e general knowledge question #24 / 50 if a traffic signal is out …
B. Stop as you would for a four - way Stop sign.
-
6. it took 3 hours for a train to travel a straight track between two c…
8. 1200 s; Yes, as it may change speed or direction. 9. 200 miles/hr; Yes, as direction is changing on oval - track. 10. 5 hours; 2 pm
-
environmental conservation movement - #22 educator 1 multiple - choice …
He wanted to protect nature from human use and interference.
-
the sections of the nutrition facts label directions: highlight the sec…
Step 1: 170 Step 2: 21, 28, 3.5 Step 3: 11, 0, 250 Step 4: 1, 0, 5, 0, 35 Step 7: Enriched Corn Meal
-
environmental conservation movement - #22 educator 1 multiple - choice …
B. Human behavior can negatively affect the environment.
-
true or false 4 points scientific laws often use mathematical formulas …
True
-
the routes of two planes are shown. they take off from the same airport…
An air - traffic controller may direct one plane to change its altitude (either climb or descend) while the other plane maintains its current altitude. Another option is to direct…
-
5. spirit of australia, a hydroplane boat, made speed records by travel…
$8.0467$ km/min
-
the routes of two planes are shown. they take off from the same airport…
C. Plane 1 and 2 have the same average speed
-
greg is giving a slide show presentation to a large audience. how might…
He can use the laser to point to specific information on the slides.
-
patient name: martin long date description charge insurance payment pat…
$188.87$
-
how are reflecting telescopes similar to devices that produce laser lig…
Both use mirrors to reflect a beam of light.
-
class e general knowledge question #14 / 50 when it rains, the roads ar…
B. Just after the rain begins, because oil dropped from vehicles has not yet been washed away.
-
shanti began to draw a venn diagram comparing refracting and reflecting…
"Uses a convex eyepiece lens"
-
which property of the coating on fiber - optic strands makes light visi…
reflectivity
-
what is a primary function of fiber - optic cables? magnifying distant …
carrying signals at high speeds
-
using the time of flight and the height when it exploded, you are going…
Initial Velocity: 67.1 Final Velocity: 12.22
-
makori drew the diagram below to show how a light microscope works. whi…
Change the label "Virtual image from objective lens" to "Real image from objective lens."
-
which is one use of lasers? reproducing images to make them clearer pro…
cutting an iron bar into two pieces
-
class e general knowledge question #12 / 50 any driver who is stopped b…
B. Have their driving privilege suspended.
-
what kind of image does the lens in a camera produce? real and upside d…
real and upside down
-
the very first effect of even a small amount of alcohol on a persons sa…
Good judgment
-
class e general knowledge question #11 / 50 you are driving a car that …
A. Pump your brake pedal hard and fast. Shift to a lower gear, and slowly apply your parking brake.
-
classifying lenses. the image produced by a camera lens is real and ups…
convex lens
-
which type of device enables its users to see around corners? laser tel…
fiber optics
-
distinguishing telescopes what kind of telescope uses only lenses?
Refracting telescope
-
2. raul says that air traffic controllers only need to know airplane sp…
Seema is correct because air - traffic controllers need to know both the magnitude (speed) and direction of airplanes' motion, which is what velocity represents.
-
what is the correct sequence for light traveling through a microscope? …
light – slide – objective lens – eyepiece lens
-
identifying advantages which are advantages of reflecting telescopes? c…
A. There is no rainbow - like halo around the image. B. Reflecting telescopes can be made very large. D. Only the reflecting side of the primary mirror needs to be perfectly shape…
-
2 why is it important to drink plenty of water? self - check i matched …
Water is important for regulating body - temperature, aiding digestion, transporting nutrients, and flushing out waste. Dehydration can cause health problems.
-
planes use a distance unit called nautical miles (nmiles). speed is mea…
Air - traffic controllers use distance to calculate speed and set safe separation distances between planes taking off one minute apart by considering the speed (in knots) and dist…
-
identifying the parts of a mag left and use the drop - down of a magnif…
focal point
-
identifying the parts of a magnifying glass refer to the diagram to the…
Label A: virtual image Label B: object
-
① what are 2 foods that give you each of these nutrients? complex carbo…
Complex carbohydrates: Whole - wheat bread, Brown rice Protein: Chicken breast, Lentils Healthy fats: Avocado, Almonds Vitamins: Orange, Spinach Minerals: Milk, Banana
-
locating information use the drop - down menu to answer the question. a…
Concave lens
-
interpreting captions use the drop - down menu to answer the question. …
in space
-
the center of a 400 - mile wide hurricane is 550 miles from the kennedy…
3:00 am
-
identifying lenses according to \take a closer look\, what type of lens…
Convex lens
-
based on your reading of \take a closer look\, what can you say about t…
The image that forms on the retina of the eye is real, inverted, and smaller than the object.
-
summarizing the document \take a closer look\ after reading the documen…
Lenses are used in many devices that help people examine the world more closely.
-
question 25 a rock is kicked horizontally at a speed of 16 m/s from the…
E. 4.1 s
-
you can see, the rays of light cross beyond that gathering point. this …
C. microscope and telescope
-
convex lenses help magnify objects. which statement describes a concave…
It makes a smaller image of the object.
-
8. looking at the picture to the right, was energy added or removed fro…
8. Energy was added. 9. Melting.
-
diastolic bp ______ mmhg pulse pressure ______ mmhg mean bp ______ mmhg…
50
-
a basketball is launched with an initial speed of 8.0 m/s and follows t…
$x = 5.4$ m, $y = 0.91$ m
-
question 22 4 points save answer (problem reference 3 - 3) a shell is f…
39 m/s
-
2. look at graph b, american indian population estimates, and photo c. …
2. American Indians; Europeans; colonized; decreased; diseases 3. a. 6 b. 4 c. 2 d. 3 e. 5 f. 1
-
gathering historical facts 1. turn to pages 34 - 35 of the atlas. read …
1. a. T b. F c. T d. T 3. Without more information, cannot provide a definite order of events.