Second class lever - Study guides, Class notes & Summaries

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 ...

What is a lever? correct answersA 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? correct answersW1 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? correct answersA lever where the fulcrum is located between the force a...

Bodybuilding Final Exam Questions And Answers (Verified And Updated) This type of muscle blends into tendinous insertions that attach to bones, pulling them, which produces the desired movement. a. skeletal muscle b. swoll muscle c. cardiac muscle d. smooth muscle - answera. skeletal muscle Muscle are connected to bones by what? a. ligaments b. tendons c. science is still investigating d. motor units - answerb. tendons What type of muscle fibers are referred to as coach potato fiber...

1 MISSOURI BOATING LICENSE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Bow Correct Answer: Front of the vessel. Stern Correct Answer: Rear of the vessel. Starboard Correct Answer: Right side of the vessel. Port Correct Answer: Left side of the vessel. Hull Correct Answer: Body of the vessel. Gunwale Correct Answer: Upper edge of vessel's side. 2 Cleat Correct Answer: Metal fitting on which a rope can be fastened. Propeller Correct Answer: Rotates and...

teardrop pad can help for what type of injury? - Transverse arch sprain/strain A written document that defines the standard of care required in every conceivable event during an emergency situation defines what? - An emergency action plan According to NCAA policies, how frequently are sports rules reviewed and potentially revised? - - Every year According to the NATA position statement on Management of the Cervical Spine Injured Athlete, what is correct regarding facemark removal? - If the...

Mechanical REC Study Guide Latest Update Graded A+ Rack and pinion gear example Steering system in cars Spur gear example Used in a parallel shaft gear train Bevel gear example Hand drills Parallel helical gear example Used for high speed or high torque applications like transmission Herringbone gear example Power transmissions and heavy machinery Worm gear example Gates and conveyor belts Gear ratio formula driven gear/driving gear Idler gear Has no effect on the ove...

ISSA Transformation Specialist Exam Expected Questions and Answers ATP stands for - ANSWERS Adenosine Triphosphate Our muscles can produce ATP by which of the following pathways - ANSWERS All of the above (ATP/CP, Glycolytic, Oxidative pathway) BMR stands for - ANSWERS Basal metabolic rate The primary fuel during endurance exercise is - ANSWERS Fatty acids The ATP/CP pathway is sufficient for over four mintues of ATP Production (T/F) - ANSWERS False Non-oxidative glycolysis is reliabl...

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 - 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 r...

Describe the result of adding a large positive number and a smaller negative number. A small positive number, and is the same as regular addition How do you convert a fraction into a decimal? Divide numerator by denominator What is the key step that must be performed in order to add or subtract unlike fractions? Find the least common denominator How do you divide one fraction by another? Multiply by the reciprocal How do you convert a decimal into a percent? Mu...

Praxis 5017 CIA Questions and Answers Already Passed Which of the following is NOT true of a trapezoid? a) Its four angles add up to a total of 360 degrees. b) Its parallel sides are always equal. c) Its non-parallel sides are always equal. d) It has four sides. c) Its non-parallel sides are always equal. In which of the following spheres of the Earth do oceans belong? A) Geosphere B) Biosphere C) Atmosphere D) Hydrosphere D) Hydrosphere transpiration the process through whic...