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5th Levers & Pulleys
5th Grade Levers and Pulleys
| Question | Answer |
|---|---|
| A drawing that describes the relationship of all the parts of a system. | Diagram |
| A _____ uses a system of symbols and conventions to communicate information about lever design. | Diagram |
| The point at which a lever arm pivots. | Fulcrum |
| The weight or resistance that is moved using a simple machine. | Load |
| The force applied to move a load using a simple machine. | Effort |
| Class 1 levers have the ________ in the middle and the load and the effort at the ends. | Fulcrum |
| Class 2 levers have the ________ in the middle of the fulcrum and the effort at the ends. | Load |
| Class 3 levers have the _______ in the middle and the fulcrum and load at the ends. | Effort |
| Which lever class always gives advantage? | Class 2 |
| Which lever class never gives you advantage? | Class 3 |
| The F,L, and E stand for the part of hte lever system that is in the ______ of the lever. | Middle |
| Any of the six basic devices that provide mechanical or other advantage, such as pulleys and levers | Simple Machine |
| Two pulleys can provide greater ___________ than one when lifting loads. | Mechanical advantage |
| _____ = Force x Distance | Work |
| In a lever system and a pulley system, a ____ in effort is balanced by the distance over which the effort must act. | Reduction |
| The benefits gained by using simple machines are always balanced by costs. When the benefits ________ the costs, the machine is a useful tool. | Outweigh |
| a simple machine that people use to gain a mechanical advantage, such as making work easier | lever |
| a stick or beam free to pivot at a point | lever arm |
| effort is measured in _______ | Newtons |
| in a lever system the _______ from the fulcrum the effort is applied, the ______ the advantage is to the lever user | Farther easier |
| __________ shows relationship between two variables and can be used to make predictions | two-coordinate graphs |
| _________ is a benefit obtain by using a lever (or other simple machine.) | advantage |
| _____ is a wheel with a groove rim in which a rope can run to change the ________ of the pull (force) that lifts the load | pully direction |
| _____ _____ has a wheel that is attached to something _____ ___ ____. | fixed pully above the load |
| ________ has a wheel that is attached to ______ | movable pully the load |
| _______ ________reduces the effort needed to lift a load or overcome a resistance;it results from using a simple machine | Mechanical advantage |
| _________ is a change in direction that results from passing a rope through a pulley | Directional advantage |
| a single pulley can be set ups as a _____ pulley or a _______ pulley | Fixed movable |
| Any of the 6 basic devices that provide a mechanical or other advantage, such as pulleys and levers | Simple Machine |
| _____ pulleys can provide greater mechanical advantage than one when lifting loads | two |
| the benefits gained by using simple machines are always balanced by _____ | costs |
| when the benefits outweigh the costs, the machine is a _____ tool | useful |
| in a lever system and a pulley system,a reduction in effort is balanced by the ________ over which the effort must act | distance |
Created by:
mtmscomplab
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