motion and forces 🌷 Word Scramble
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| Question | Answer |
| In scientific terms, when do you do work? | when the object moves in the same direction in which the force is exerted |
| In order for you to do work on an object, the object must move some _____________ as a result of your force. | distance |
| The amount of work you do depends on both the amount of _____ you exert and the _________ the object moves | force, distance |
| What formula do you use to determine the amount of work done on an object? | work= force x distance |
| What is the SI unit of work? | joule |
| What is the amount of work you do when you exert a force of 1 newton to move an object a distance of 1 meter? | 1 joule |
| What is the rate at which work is done? | power |
| T or F: You exert more power when you run up a flight of stair than when you walk up the stairs. | true |
| What is the formula you use to calculate power? | power= work/time |
| What is the longer way to write the formula for power? | power= force x distance/time |
| What are the six basic kinds of simple machines? | inclined plane, wedge, screw, lever, wheel and axle, and pulley |
| WSM: A simple machines that consists of a sloping surface connecting a lower elevation to a higher elevation | inclined plane |
| The larger the incline, the less __________ you need to push or pull an object on an inclined plane. | input force |
| WSM: a simple machines that consists of two inclined planes, giving it a thing end and thick end. | wedge |
| T or F: In a wedge, the inclined plane itself moves. | true |
| T or F: The longer and thinner a wedge is, the greater its mechanical advantage. | true |
| WSM: a simple machine that consists of an inclined plane wrapped around a central cylinder. | screw |
| A spiral inclined plane forms the __________ of a screw. | threads |
| WSM: A simple machine consisting of a bar that rotates around a fixed point. | lever |
| The fixed point that a lever pivots around is called the _____ | fulcrum |
| What type of lever is a door, wheelbarrow, and bottle opener? | second class |
| What type of lever is a seesaw, scissors, and pliers? | first class |
| What type of lever is a baseball bat, shovel, and fishing pole? | third class |
| WSM: A simple machine that consists of two connected rings or cylinders, one inside the other | wheel and axle |
| WSM: a simple machine that consists of a rope and grooved wheel | pulley |
| What is a machine that utilizes two or more simple machines? | compound machines |
Created by:
maddiefranciscan
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