1) What are the characteristics of a class 2 lever? a) The fulcrum is in the middle with the load and effort on either sideb) The load is in the middle with the effort and the fulcrum on either sidec) The effort is in the middle with the fulcrum and the load on either side
2) Which of the following is a class 3 lever? a) A construction crane b) A fishing rodc) Both of the above
3) How do you find the ideal mechanical advantage of a lever? a) By dividing the length of the input arm by the length of the output armb) By dividing the length of the output arm by the length of the input armc) It doesn't matter, they are both correct
Inclined Planes 1) Inclined planes are simple machines along with the lever, screw, wedge, pulley and wheel and axle True or False
2) The inclined plane is only used when an object doesn't have a screw in it
True or False
3) The inclined plane is used to move heavy objects up a vertical height True or False
Practice Test
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1) What are the characteristics of a class 2 lever?
a) The fulcrum is in the middle with the load and effort on either sideb) The load is in the middle with the effort and the fulcrum on either sidec) The effort is in the middle with the fulcrum and the load on either side
2) Which of the following is a class 3 lever?
a) A construction crane
b) A fishing rodc) Both of the above
3) How do you find the ideal mechanical advantage of a lever?
a) By dividing the length of the input arm by the length of the output armb) By dividing the length of the output arm by the length of the input armc) It doesn't matter, they are both correct
Inclined Planes
1) Inclined planes are simple machines along with the lever, screw, wedge, pulley and wheel and axle
True or False
2) The inclined plane is only used when an object doesn't have a screw in it
True or False
3) The inclined plane is used to move heavy objects up a vertical height
True or False
Answers (highlight):Levers 1)a 2)a,b,c 3)a Inclined Planes 1)T 2)F 3)T