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- 1. Multiple Choice
A 62 kg box is lifted 12 m off the ground. How much work was done? (hint: calculate weight of the box first)5.17 J72.91 J744.0 J7291.2 J - 2. Multiple ChoiceWhat is effort (input) force?the force required by a machine in order to accomplish work (the force you put on the machine)the force which an effort force must overcome in order to do work on an object via a simple machine.the force the machine exerts on a objectthe output work times the input distance
- 3. Multiple ChoiceWhat is resistance (output) force?the force required by a machine in order to accomplish work (the force you put on the machine)the force which an effort force must overcome in order to do work on an object via a simple machine.the force the machine exerts on a objectthe output work times the input distance
- 4. Multiple ChoiceWhat is effort (input) distance?the force required by a machine in order to accomplish work (the force you put on the machine)the force which an effort force must overcome in order to do work on an object via a simple machine.the distance an input force moves a machinethe output work times the input distance
- 5. Multiple ChoiceWhat is resistance (output) distance?the force required by a machine in order to accomplish work (the force you put on the machine)the force which an effort force must overcome in order to do work on an object via a simple machine.the distance an input force moves a machinethe distance through which the output force is exerted
- 6. Multiple ChoiceWhat is the mechanical advantage of this pulley system?2345
- 7. Multiple ChoiceUsing a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?1101001000
- 8. Multiple ChoiceHow does a single fixed puled, like the one seen here, help you do work?changes the direction of the forceincreases the amount of applied forcedecreases the amount of applied forceallows you to pull the rope a shorter distance
- 9. Multiple ChoiceWhere should the fulcrum be placed in order for the student to use the least amount of effort possible?point Apoint Bpoint Cpoint D
- 10. Multiple ChoiceThe mechanical advantage of this inclined plane is.....2.43.44.4
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