Neaque’Williams 1/30/12 3rdblock-Bday Simple Machine | |||
Pictures | Name of simple machines | Definition | Purpose & characteristics |
 | wedge | An object that has one thick end and the opposite end having an thin edge, that is driven between two objects. | Purpose-Used to stop certain objects that needs assistance to be stopped such as a door. Characteristics-thick end and thin edge kind of like an right triangle. |
 | lever | A rigid bar resting on a pivot used to help move a heavy or firmly fixed load with one end and pressure applied to the other. | Purpose-lift an heavy load or object. Characteristics- A stick shaped pole or pole shaped stick with a fulcrum under it. |
 | Screw | A short, slender sharp pointed metal pin with a raised helical thread running around it and a slotted head used to join things. | Purpose- To join things together Characteristics- Small, sharp pointed and has round dents. |
 | Pulley | A wheel with a grooved rim around which a cord passes it acts to change the direction of a force applied to the cord. | Purpose- To help pull things up or help pull them down Characteristics- Sometimes two circles but mostly one with rope or cord around it |
 | Gear | One of a set of toothed wheels that work together to alter the relation between the speed of an driving mechanism. | Purpose- To help move some objects for a long time. Characteristics- A circle shaped object some small and some big with small or large spikes to connect with one another |
 | Wheel and axle | A device used of an consist of a grooved wheel turned by an object with a rigidly attached axle. | Purpose- To help move objects while rolling. Characteristics-wheel or tire connected to a pole moving the same direction. |
 | Inclined | A sloped ramp used to help push object onto an higher platform | Purpose- To help lift or pull objects onto an higher platform. Characteristics- Ramp can be long or short but faced upward toward higher platform. |
Wednesday, February 15, 2012
Friday, February 3, 2012
Essential questions
1/20/12- What makes a successful presentation?
Answer
Answer
2/3/12-Whats a compound machine?
Answer
Answer
- Make sure you are clearly reading
- Make sure your powerpoint has readable messages and orederd bullets
- feedback from audience
- Spell and grammer check
- stay on topic on each slide
Answer
- you can upload an image onto your blog by right clicking and pressing upload
- going to file and clicking picture
2/3/12-Whats a compound machine?
Answer
- machine that make up more than one machine.
Wednesday, February 1, 2012
simple machines vocab
1. simple machines- Any of the basic mechanical devices for applying a force such as an inclined plane, wedge or lever.
2.compound machines- More than one simple machine used at once.
3.force-strength or energy as an attribute of physical action or movement.
4.friction-the resistance that one surface or object encounters when moving over another.
5.gravitation-movement or tendacy to move toward a center of attraction force as in the falling of bodies.
6.magnetism-A physical phenomenum produced from a motion of electric charge resulting in atrractive and repulsive forces.
7.work-activity involving mental or physical effort done in order of acheive in purpose or result.
8.newtons-Is the (SI) unit for force it is equal to the amount of the net force.
9.joules-The (SI) unit for work or energy equal to the work done by the force of one newton.
10.watts-Is a derived unit of power in the international system of units (SI).
11.acceleration-Increase in the rate or speed of something.
12.balanced forces-forces are balanced when the pulling or pushed force are equal.
13.unbalanced forces-in physics tension the magnitude of the pulling force.
14.inertia-A tendacy to do nothing or to unchange.
15.power-the tendacy to act or do something in an particular way.
16.speed-rapidly movement or action.
17.velocity-the speed of something in a given direction.
18.kinetic energy-energy that a body posses by virtue of being in motion.
19.potential energy-the energy posses by a body virtue of its position relative to others.
20.machines-An apparatus using or applying mechanical power to perform a particular task.
21.momentum-the quantity of motion of a moving body.
22.distance-An amount of space between a thing or person.
23.fulcrum-A point or support of which the lever pivots.
2.compound machines- More than one simple machine used at once.
3.force-strength or energy as an attribute of physical action or movement.
4.friction-the resistance that one surface or object encounters when moving over another.
5.gravitation-movement or tendacy to move toward a center of attraction force as in the falling of bodies.
6.magnetism-A physical phenomenum produced from a motion of electric charge resulting in atrractive and repulsive forces.
7.work-activity involving mental or physical effort done in order of acheive in purpose or result.
8.newtons-Is the (SI) unit for force it is equal to the amount of the net force.
9.joules-The (SI) unit for work or energy equal to the work done by the force of one newton.
10.watts-Is a derived unit of power in the international system of units (SI).
11.acceleration-Increase in the rate or speed of something.
12.balanced forces-forces are balanced when the pulling or pushed force are equal.
13.unbalanced forces-in physics tension the magnitude of the pulling force.
14.inertia-A tendacy to do nothing or to unchange.
15.power-the tendacy to act or do something in an particular way.
16.speed-rapidly movement or action.
17.velocity-the speed of something in a given direction.
18.kinetic energy-energy that a body posses by virtue of being in motion.
19.potential energy-the energy posses by a body virtue of its position relative to others.
20.machines-An apparatus using or applying mechanical power to perform a particular task.
21.momentum-the quantity of motion of a moving body.
22.distance-An amount of space between a thing or person.
23.fulcrum-A point or support of which the lever pivots.
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