What is the mechanical advantage of a lever defined as?Question 6Select one:a.Effort/loadb.Load/fulcrumc.Fulcrum/effortd.Load/effort

While researching a topic, a student has taken thefollowing notes:• A lever is a simple machine consisting of a rigidbeam and a fulcrum.• The fulcrum is the point about which the beampivots.• The input force (effort) is the force applied to thelever.• The output force (load) is the force that the leverexerts on another object.• In first-class levers, the fulcrum is located betweenthe effort and the load.• In second-class levers, the load is located betweenthe effort and the fulcrum.The student wants to contrast first-class levers andsecond-class levers. Which choice most effectivelyuses relevant information from the notes toaccomplish this goal?A) In levers, the effort is the force applied to thelever; the load, in contrast, is the force that thelever exerts on another object.B) In first-class and second-class levers, the fulcrumand the load are in different locations.C) First-class levers are simple machines consistingof a rigid beam and a fulcrum, but then again,the same is true of second-class levers.D) In first-class levers, the fulcrum is locatedbetween the effort and the load, but insecond-class levers, the load is located betweenthe effort and the fulcrum.

In which type of lever is the effort situated between the load and the fulcrum?Question 11Select one:a.Second-class leverb.Fixed pulleyc.First-class leverd.Third-class lever

When does a lever act as a class III lever?Question 15Select one:a.Load is between fulcrum and effortb.There is no class III leverc.Fulcrum is between effort and loadd.Effort is between fulcrum and load

What is the mechanical advantage of a lever with a load of 100 N and an effort of 50 N?Question 18Select one:a.1b.0.5c.3d.2

What is a lever?Question 1Select one:1.A rigid rod which turns around a centered point.2.A rigid rod which turns around a fixed point.3.A flexible rod which turns around a fixed point.Clear my choiceQuestion 2Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is a lever used for?Question 2Select one:1.It is used to export heavy objects.2.It is used to enhance heavy objects.3.It is used to lift and/or move heavy objects.Clear my choiceQuestion 3Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhere can we find levers?Question 3Select one or more:1.In many heavy duty machines.2.In many simple machines.3.In many complex machines.Question 4Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat are the three parts of a lever?Answer: Question 4Question 5Not yet answeredMarked out of 1.00Flag questionTipsQuestion textDescribe the lever's effort.Question 5Select one:A.A pull or shear force.B.A twisting force.C.A pull or push force.Clear my choiceQuestion 6Not yet answeredMarked out of 1.00Flag questionTipsQuestion textDescribe the fulcrum / pivot point.Question 6Select one:1.The point around which the load and effort turn.2.The point around which the load turns.3.The point around which the pivot turns.Clear my choiceQuestion 7Not yet answeredMarked out of 1.00Flag questionTipsQuestion textDescribe the load.Question 7Select one:1.The object that enables the pulling/pushing force.2.The object that works against or resists the pulling/pushing force.3.The object that works with the pulling/pushing force.Clear my choiceQuestion 8Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow many classes of levers are there?Question 8Select one:1.Two2.Five3.ThreeClear my choiceQuestion 9Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow can we tell the difference between the different classes?Question 9Select one:1.Depends on which part of a lever is on the left.2.Depends on which part of a lever is on the right.3.Depends on which part of a lever is in the middle.Clear my choiceQuestion 10Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat’s the shortcut to remembering the three classes?Question 10Select one:1.FLEece2.PLAce3.PLEaseClear my choiceQuestion 11Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is a first-class lever?Question 11Select one:1.A lever with the load in the middle.2.A lever with the effort in the middle.3.A lever with the pivot-point in the middle.Clear my choiceQuestion 12Not yet answeredMarked out of 1.00Flag questionTipsQuestion textGive an example of a first-class lever.Question 12Select one:1.Seesaw.2.Wheelbarrow.3.StaplerClear my choiceQuestion 13Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is a second-class lever?Question 13Select one:1.A lever with the pivot-point in the middle.2.A lever with the load in the middle.3.A lever with the effort in the middle.Clear my choiceQuestion 14Not yet answeredMarked out of 1.00Flag questionTipsQuestion textGive an example of a second-class lever.Question 14Select one:1.Fishing rod.2.Wheelbarrow.3.Scissor.Clear my choiceQuestion 15Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is a third-class lever?Question 15Select one:1.A lever with the effort in the middle.2.A lever with the load in the middle.3.A lever with the pivot-point in the middle.Clear my choiceQuestion 16Not yet answeredMarked out of 1.00Flag questionTipsQuestion textGive an example of a third-class lever.Question 16Select one:1.Pliers.2.Spanner.3.Tweezers.Clear my choiceQuestion 17Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is a simple linked system?Question 17Select one:1.A lever with three or more pivot points.2.A lever with two pivot points.3.A lever with just one pivot point.