Science:Simple Machines

5 Written Questions

1. when something moves in the direction that the force is acting
2. the force of the Earth's attraction
3. Simple: window blind rope, flagpole rope
4. Simple: claw of hammer, bottle opener
5. the measure of work; 1 pound of work to move something 1 foot

5 Matching Questions

1. INCLINED PLANE
2. Friction
3. WEDGE
4. Fulcrum
5. Gains

1. a the place where a lever pivots
2. b Simple: knife, axe head
3. c Simple: ramp
4. d You use less force to move something with a simple machine than if you didn't have it
5. e a force that resists sliding motion

5 Multiple Choice Questions

1. a machine that combines 2 or more simple machines to do one job
   1. Compound Machine
   2. Can Opener
   3. Foot-pounds
   4. Simple Machine
2. Compound: wedge, lever, wheel & axle
   1. Power
   2. Can Opener
   3. LEVER
   4. Meter
3. Compound: wheel & axle, pulley, lever
   1. Axe
   2. Bike
   3. Meter
   4. Power
4. = F x D (the force that makes something move times the distance that it moves)
   1. Watt
   2. Work
   3. Force
   4. Loss
5. You have to exert the force for a longer period of time & for a longer distance
   1. Loss
   2. Work
   3. Axe
   4. LEVER

5 True/False Questions

1. Power → the speed at which work is done

   True        False

2. Watt → when something moves in the direction that the force is acting

   True        False

3. Motion → a change of position

   True        False

4. Simple Machines do 3 things to the force we apply when working → but simple machines make it easier to do work OR do work that you could not do without the simple machine

   True        False

5. WHEEL & AXLE → Simple: ramp

   True        False