1) The ratio of the velocity of the effort to the velocity of the load is called.... a) Mechanical advantage b) load c) efficiency d) Velocity ratio 2) ........ Is the number of times the effort moves further than the load. a) friction force b) Efficiency c) Velocity ratio d) Mechanical advantage 3) The ratio of the load to the effort is called.... a) Mechanical advantage b) output c) Efficiency d) energy 4) ..........is the number of times the load is greater than the effort a) Ideal Machine b) Velocity ratio c) Efficiency d) Mechanical advantage 5) Mechanical advantage is measured in what units? a) MA has no units b) Newton meter c) grams d) meter squared 6) What is the effect of friction on the mechanical advantage of the machine? a) Velocity ratio increases b) More friction present means less mechanical advantage  c) mechanical advantage stays the same. d) More friction present means moremechanical advantage 7) What do we call the machine were by the work done on the machine by the effort is equal to the work done by the machine on the load? a) lever b) Ideal Machine c) inclined crane d) simple machine 8) What do we call the ratio of the machine's energy output to it's energy input? a) Efficiency b) Mechanical advantage c) Ideal Machine d) Velocity ratio 9) Why is efficiency of the machine always less than 100%? a) Because of the presence of friction b) Mechanical advantage is always smaller than velocity ratio c) Mechanical advantage is always greater than velocity ratio d) Velocity ratio is always equal to mechanical advantage 10) The number of times the machine magnifies the effort is called? a) Mechanical advantage b) efficiency c) output d) work done

4.Mechanics: Simple Machines-Explain the terms of Mechanical advantage (MA), Velocity Ratio (VR) and Efficiency

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