Mechanical advantage Study guides, Class notes & Summaries

What is a lever? A simple machine that provides a mechanical advantage in carrying loads. Composed of a fulcrum (or pivot) and rigid rod (or beam). What is the formula for calculating the load or the effort of a lever? W1 x L1 = W2 x L2 (Weight of the load x distance of the load from the fulcrum = weight of the effort x distance from the fulcrum to the effort.) What is a first class lever? A lever where the fulcrum is located between the force and the load. ie. seesaw Wha...

ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS ALREADY PASSED In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is the length of time it takes for one complete wavelength to pass a fixed poin...

Major components of medical video imaging include: Fiber optic light cable, Camera Control Unit (CCU) Special considerations when using a endoscopic light source are: Place in "standby" mode, do not turn on until light cable is connected to the telescope, set according to manufacturer's parameters Special considerations when using insufflation (establishing a pneumoperitoneum) Always have a backup tank available, position at the level of the patients heart or higher to preven...

1. One of the best ways to stress the importance of inspections upon building owners is through : - A follow - up visit . 2. In an inspection report , fire inspectors are generally concerned with presenting the facts and evidence to prove a point , draw a conclusion , or : - Justify a recommendation 3. Which statement regarding inspection forms / checklists is true ? - They are very useful for inspecting common items and / or complex processes . 4. During an inspection of a bui...

(IN) - Great work relationships satisfy purpose to help organizations operate indefinitely. <.> Y - Page 9 Organizations need Purpose <,> (IN) - Value is defined by revenue and profit. <.> N - (Value is defined by so much more than just revenue, expenses, and profit. It can also come from a person having a sense of pride in a job well done, or from feeling their work has meaning.) Pg 9 Idea of Value is Evolving <,> (IN) - Strong relationships are necessary...

IV Therapy Final Exam questions and answers verified 100% What equipment and supplies are needed for initiation of IV therapy? - cannulas, tourniquets, clean gloves, site cleansing agent, IV solution, IV tubing, IV pole, extension tubing, and dressing Using what gauge, what length catheter and in the what vein will reduce the mechanical and chemical irritation to the vein wall? - smallest gauge, shortest length, and largest vein What gauges do cannulas range? - 14 to 26 What len...

Crossfit Level 1 Exam Questions and Answers 100% Pass What is the main goal of Crossfit? To increase an individual's competency and abilities at all physical tasks What are the 10 fitness domains Crossfit can improve? What are their definitions? - Cardiovascular endurance: Ability of a body system to gather, deliver, and utilize oxygen - Stamina: Ability of body processes to process, deliver, store, and utilize energy systems - Strength: Ability of a muscle joint, or multiple muscular units, t...

Mechanical Advantage correct answers Distance from applied force to pivot point/distance from pivot point to magnified force Aviation and Nautical Information: ?'s and time correct answers 30 questions, 15 minutes (computer adaptive test) Sections on ASTB-E Describe each correct answers 1. Math 2. Reading 3. Mechanical Comprehension 4. Aviation and Nautical Information 5. Naval Aviation Trait Facet Inventory 6. Performance Based Measures Battery 7. Biographical Inventory with Response Va...

Mechanical Advantage.

What two variables determine the mechanical advantage of a simple machine Force, distance A screwdriver can be used to open a can of paint. In this situation, the screwdriver is being used as a Lever Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Brainpower Read More An oar is used to row a boat. The distance between the oar lock and the rowers hand is 104 cm. This distance is considered The effort distance The di...