Física
Cinemática, análisis de fuerzas, electricidad y razonamiento con ecuaciones.
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test your knowledge select one which letter shows the wave length of a …
Y shows the wave length of a transverse wave
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what is the wavelength of an electromagnetic wave that travels at 3 x 1…
The correct expression for the wavelength is $\frac{300000000\ m/s}{60000000\ Hz}$ (the last option among the visible ones in the image, though the formatting in the image is a bi…
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what kind of contraction is generated when an overly shortened muscle f…
A weak contraction
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which best describes why projectiles move in a curved path? they have c…
They have constant horizontal velocity and vertical acceleration.
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test your knowledge select one which letter shows the amplitude of a tr…
X shows the amplitude of a transverse wave
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fill in the blank question an isotonic contraction that results in shor…
concentric
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90. you arrive at a local park where you find a 20 - year - old female.…
- 90. D. Asthma - 91. C. Inhaler - Albuterol - 92. 1. Epicardium: Protective outer layer; 2. Myocardium: Muscular layer for contraction; 3. Endocardium: Inner lining of chambers a…
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multiple choice question which type of motor unit produces more force w…
larger motor units (more muscle fibers)
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question 35 (2 points) listen which of the following is a correct funct…
nose → pharynx → larynx → trachea → lungs
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multiple choice question what type of contraction is observed when a mu…
C. Isotonic
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85. you are assessing a 76 - year - old male complaining of chest pain …
85. D. Heart Failure 86. B. Heart Failure 87. A. Give him high - flow oxygen 88. A. Pneumonia 89. C. Nitroglycerin
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two balls are at the same height and released at the same time. one bal…
The second ball hits the ground in \(5\ s\) and travels horizontally a distance of \(65\ m\).
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question 34 (2 points) listen on average in recent decades, each year t…
AIDS, AIDS (though not exactly in the given options as presented, but the most accurate based on real - world data in recent decades. If we assume a mis - typing and consider the …
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fill in the blank question the increase in the number of activated moto…
recruitment
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you suffer an injury that causes a broken bone. which of the following …
E. hematoma → fibrocartilaginous callus → bony callus → remodeling
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fill in the blank question the continuous of partial contraction mainta…
tone
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imagine that a local school district experiences an unusual number of c…
B. an outbreak
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79. after 10 minutes, brain damage is: a. nothing happens. the brain is…
79. B. Irreversible 80. C. Left ventricle 81. A. Mechanism of injury 82. C. Position the squad to protect the scene 83. C. Return to the ambulance and drive a safe distance away w…
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in whole - muscle contractions, the role of the ____ is to stimulate co…
spinal cord
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graph shows how a cyclists speed changed over a 0.25 - h trip. what is …
1. The average speed is 20 km/h. 2. The cyclist stops 2 times. 3. The fastest speed is 20 km/h.
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question 39 (2 points) listen the kidneys regulate body water and salt …
all of these are true
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question 31 (2 points) the overall goal of our ventilation and respirat…
bring oxygen into the body and release carbon dioxide from it
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when an overly stretched muscle fiber is stimulated, what kind of contr…
No contraction can be generated
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what is the lowest point of a transverse wave called? select one a peak…
A trough
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multiple choice question which type of motor unit is more easily stimul…
small motor units (fewer muscle fibers)
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question 30 (2 points) listen which of the following correctly matches …
B. Tendons - between a muscle and bone; ligaments - between two bones
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this question has two parts. first, answer part a. then, answer part b.…
20 km/h
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what is the highest point of a transverse wave called? select one a pea…
A. A peak
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a single painful, involuntary muscle contraction is termed a ______, bu…
A. spasm, cramp
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name the process in which multiple motor units are activated in respons…
Recruitment
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a medical assistant is performing aseptic handwashing. how long should …
D. 2 to 3 min
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tetany occurs when muscles are stimulated at a ______ frequency. o high…
A. high
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when a muscle fiber is stimulated at a high enough frequency that it do…
C. Summation
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according to the cdc, which of the following is the first step a medica…
D. Wash the area with soap and water.
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question 34 (2 points) which vitamin is especially important for the gr…
Vitamin D
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multiple choice question a motor unit is comprised of a ______ and the …
B. motor neuron; muscle fibers
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a muscle fiber that is overly shortened generates less force than a mus…
Because there is already too much overlap between thin and thick filaments, limited additional overlap can occur.
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recognizing the role of metalloids as semiconductors metalloids are use…
touchscreen
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question 26 (2 points) listen if ones kidneys begin to fail, the first …
B. hemodialysis
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question 7 refers to the passage to the right. 7. which of the followin…
7. D. The Mongols were a nomadic group, moving their homes as needed to adjust to the climate and time of year. 8. C. Gunpowder technology aided the expansion of land - based empi…
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question 32 (2 points) listen the skeletal joint type which provides th…
B. synovial
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which of the following items should a medical assistant dispose of in a…
C. Gauze contaminated with blood, B. A used needle
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how many motor neurons typically innervate one muscle fiber? o two (one…
One
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type the correct answer in the box. jeremy accidently dropped his toy s…
2.0
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during a muscle twitch, what is the latent period? o the period of time…
The period of time between stimulation and the beginning of contraction
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question 25 (2 points) listen the swallowing reflex is primarily what k…
D. involuntary, esophagus
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71. you witness someone suddenly collapse. the person is unresponsive, …
71. B. Begin CPR; gasping is normal breathing 72. D. Ventricular Fibrillation 73. B. Has no normal breathing and no pulse 74. D. All of The Above 75. A. Observing the chest rises …
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question 24 (2 points) listen the primary role of calcium in a muscle i…
expose the binding sites between muscle filaments, allowing cross bridges to form
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fill in the blank question when the frequency of stimulation of a muscl…
tetanus
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question 23 (2 points) listen how do our kidneys make urine? filtration…
D. filtration, reabsorption, secretion
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as you brake your bicycle, your velocity changes from 20 east m/s to 10…
D. $2\ m/s^2$ west
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what is the minimum temperature that must be reached to ensure the ster…
121.1°C (250°F)
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fill in the blank question when a single muscle fiber contracts when st…
twitch
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part b what was swimmer as average speed during the period 10 min to 20…
B. 0 m/min
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multiple choice question which statement explains why a muscle fiber th…
There is less overlap between thin and thick filaments so fewer myosin heads can bind to actin.
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in a health care setting, which of the following is the minimum amount …
C. 60%
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this question has two parts. first, answer part a. then, answer part b.…
4.8 km/h
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what is the meaning of the term threshold stimulus? the concentration o…
The minimum strength of an electrical impulse that can stimulate contraction in an isolated muscle fiber
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question 21 (2 points) listen which of the following is a correct state…
AIDS is a serious medical condition of depressed immunity cause by infection with the HIV virus.
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when an overly stretched muscle fiber is stimulated, what kind of contr…
D. No contraction can be generated
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muscle contractions generate ______, which is important for the overall…
heat
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a change in velocity means a change in _______. o direction only o spee…
C. speed, direction, or both
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question 20 (2 points) which of the following conditions is most succes…
Influenza
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the speed of light in a vacuum is 300,000.0 km/s. how long does it take…
B. 8.3 minutes
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fill in the blank question prolonged or intense exercise can lead to a …
fatigue
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if an object has a constant velocity, then it ____. has a negative acce…
has an acceleration of zero
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fill in the blank question a graph depicting the force of contraction o…
myogram
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question 23 (2 points) listen the overall goal of our ventilation and r…
E. bring oxygen into the body and release carbon dioxide from it
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multiple choice question what is a muscle twitch? a sustained contracti…
A single contraction of a muscle fiber in response to a single stimulation.
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if a runner maintains a constant speed of 12 km/h, how long will it tak…
3.52 h (corresponding to the third option)
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lin recently bought stock in a company. after the purchase, the company…
- Question 1: Lin will get a share of the profit. - Question 18: entrepreneurial ability
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the direction and speed of an object is described by its ________. aver…
D. velocity
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a health care worker is not feeling well and has a fever. in which of t…
D. After being fever - free for 24 hr without the help of fever - reducing medications
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____ is the speed of an object at any instant of time. acceleration ave…
C. Instantaneous speed
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average speed is found by _______. multiplying total distance traveled …
dividing total distance traveled by the total time
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question 20 (2 points) which of the following conditions is most succes…
C. Influenza
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the island biogeography model explains the amount of water that surroun…
factors affecting the number of different species in a region
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18. which endocrine gland decreases in size as a person gets older? 3.6…
18. b) Thymus 19. c) The hypothalamus is directly connected to the pituitary gland and is responsible for telling the pituitary to release hormones when needed 20. a) The pineal g…
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earths ______ causes projectiles to follow a curved path. o acceleratio…
C. gravity
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true or false question muscles generate heat when they contract. o true…
A. True
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question 19 (2 points) which of the following is not a lymphatic organ?…
A. adrenal gland
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type the letter that represents the correct location for each particle …
The neutron is found at the nucleus. The electron is found in the electron - cloud. The proton is found at the nucleus.
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what is the equation for momentum? o p = m/v o f = ma o f = m/a o p = mv
D. $p = mv$
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question 2 4 pts (01.02 lc) match each layer of meaning to the correct …
Author's attitude: The author's feelings toward their topic, as evidenced by their diction Author's meaning: The theme, or the lesson the author is trying to teach the reader Emot…
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multiple choice question what term refers to the amount of oxygen neede…
B. Excess post - exercise oxygen consumption
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by definition, what is muscle fatigue? decreased ability to break down …
Decreased ability of a muscle to contract
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you leave home and walk 0.5 km to a friends house. at 11:30 am you retu…
11 km
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question 17 (2 points) which of the following accurately describes the …
C. compact bone in its side walls, spongy bone at its ends
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the distance between an object and a reference point is the objects ___…
C. position
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question 15 (2 points) listen __________ diseases have as their cause a…
Immunodeficiency
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drag each tile to the correct box. sort the types of energy according t…
1. potential energy 2. kinetic energy 3. electrical energy 4. light energy
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what is the main reason companies offer free or promotional items and s…
1. B. to lure in new customers willing to spend money 2. C. collect taxes from citizens
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12. which endocrine gland is considered to be the \master gland?\ 3.6 a…
12. a) pituitary gland 13. b) T3 and T4 14. a) T3 15. c) This patient would be underweight with a high metabolism 16. d) it gives orders to the pituitary gland 17. d) Adrenal Medu…
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directions: study the passage and political cartoon, read each question…
10. D. Mississippi court system 11. B. the work of the federal marshals and the outbreak of violence 12. C. separate but equal schools for different races 13. B. racial discrimina…
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question 15 (2 points) listen alveoli are never damaged by pollution or…
the primary site of gas exchange between the air in the lungs and the circulatory system
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select the correct answer. why do sound waves move faster through the g…
B. Particles of matter are packed more tightly in the ground than in the air.
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select the correct answer. an online wave simulator created these four …
The wave with the longest wavelength (visually the most spread - out wave) has the lowest frequency. Without seeing the actual wavelengths precisely, if we assume that wave B has …
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use the drop - down menus to describe the charges of the subatomic part…
Protons have a positive charge. Neutrons have a 0 charge. Electrons have a negative charge.
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question 13 (2 points) the location at which force is actually generate…
E. cross - bridge
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select the correct answer. an online wave simulator created these four …
The wave with the largest wavelength (usually the one that looks the most spread - out among the given options) has the lowest frequency. Without seeing the actual visual details …