Fulcrum Study guides, Revision notes & Summaries

_________ is a reddish, malleable metal that conducts electricity well and resists weathering. - Steel - Cast iron - Aluminum - Copper - ANSWERCopper The mechanical advantage of a third-class lever can be found by the ratio of the length of the __________ arm divided by the length of the __________ arm. - Resistance, effort - Effort, resistance - Resistance, fulcrum - Effort, fulcrum - ANSWEREffort, resistance A spring scale is used to measure __________. - Force - Mass - Torque...

FCTC Written Study Guide Latest Update Graded A+ Classes of Levers Class 1, Class 2, Class 3 Class 1 Levers Fulcrum is in the middle, with the effort (input) force on one side of the fulcrum and resistance (output) on the other side. Mechanical Advantage greater or less than 1 Ex: Seesaw, Crowbar, Pair of Scissors. Class 2 Levers Resistance is in the middle, the effort is applied on one side of the resistance and the fulcrum on the other side. Mechanical Advantage always greater...

BIOL 235 Midterm 2 Exam Questions and Answers Latest Updated 2024/2025 Graded A+. between the origin and insertion which is usually located proximally in limbs ? - Origin What happens during REVERSE MUSCLE ACTION? - specific movements of the body the actions are reversed THEREFOR the positions of the origin and insertion of a muscle are switched What is a mechanical advantage using the example of a lever? - if the load is closer to the fulcrum and the effort is farther from the fulcrum only ...

FCTC TEST PREP QUESTIONS AND ANSWERS ALREADY PASSED A belt and pulley system is characterized by two or more pulleys in common to a belt. What does a belt and pulley system allow for? mechanical power, torque, and speed to be transmitted across axles How is mechanical advantage realized? if the pulleys are different diameters what is a pulley? a wheel on an axle or shaft that is designed to support movement and change of direction of a cable or belt along its circumference Why ...

When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - ANSWER C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channels close rapidly B. Voltage-gated Ca++ channels open rapidly C. Ligand-gated Na+ channels ...

DASLE MN Questions and Answers Rated A+ What system has a tightening wrench to tighten and loosen the band? Automatrix What is the purpose of a wedge? How many do you need for an MOD restoration? To contour and hold the band securely, 2 wedges auto matrix is unique in that it has a wrench that does what? has no retainer to hold the band in place. the tightening wrench is inserted into the coil and is turned clockwise to tighten the band What occurs if the wedge is not place pro...

What is a lever? CORRECT ANSWER A lever is a simple machine which provides a mechanical advantage in carrying loads. What comprises a lever? CORRECT ANSWER A lever comprises a fulcrum, which is a hinge or a pivot, and a beam or a rigid rod. What forces are applied to the beam of a lever? CORRECT ANSWER The input force, or the effort, and the output force, which carries the load. What happens to the input force applied to the beam of a lever? CORRECT ANSWER The input force is converted ...

the average moment arm of the loaded airplane falls within its CG range. CORRECT ANSWER 1. When computing weight and balance, an airplane is considered to be in balance when Remove all items except those on the aircraft equipment list; drain fuel and fill hydraulic reservoir. CORRECT ANSWER 2. What tasks are completed prior to weighing an aircraft to determine its empty weight? crew, usable fuel, passengers, and cargo. CORRECT ANSWER 3. The useful load of an aircraft consists of the Rew...

The three common types of mechanisms are levers, ______, and inclined planes. wheels The metric system expresses force in ______. newtons A spring scale is used to measure ______. force The English unit of measure of weight is the ______. pound-force (lb-f) The Law of Moments can be used to determine ______. both the force needed to balance OR force needed to move a load Torque can be calculated by multiplying the distance from the fulcrum and ______. the force applied A force that makes ...

When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - Answer-C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channels close rapidly B. Voltage-gated Ca++ channels open rapidly C. Ligand-gated Na+ channels close ...