1) What does a machine do? a) Multiplies force b) Has many parts c) Reduces speed 2) Example of simple machine a) Inclined plane b) Engine c) Gearbox 3) What is a lever? a) Rigid bar b) Flexible rod c) Elastic band 4) Where is the fulcrum in Class 1 lever? a) Between effort and resistance b) At one end c) Near resistance 5) What is a Class 2 lever? a) Resistance between effort and fulcrum b) Effort between fulcrum and resistance c) Fulcrum between effort and resistance 6) What is a Class 3 lever? a) Effort between fulcrum and resistance b) Resistance between effort and fulcrum c) Fulcrum between effort and resistance 7) What is an inclined plane? a) Ramp b) Pulley c) Lever 8) What does a pulley do? a) Changes force direction b) Increases force c) Reduces force 9) How does a pulley help? a) Makes work comfortable b) Reduces load weight c) Increases speed 10) What is a complex machine? a) Combination of simple machines b) Single part c) Reduces force

Simple and Complex Machines Quiz

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