| A | B |
|---|
| Wedge | Two inclined planes together. It is wide at one end and pointed at the other. It can pierce , cut or split pr hold objects together |
| Simple machine | Machine with few moving parts |
| LIfting a heavy weight. Move heavy objects aover a distance> Push thing apart. Change the direction of fore. Hold an object together | What can simple machines do? |
| inclined plane | Flat surface that is sloped or tilted |
| Move things up or down easier | What is the function of an inclined plate |
| ramp | Example of an inclined plane? |
| force | To push or pull on an object |
| work | The application of force over a distance to complete a purfose |
| True | T or F Work can only happen if force is applies |
| False - Force can happen WITHOUT work | Force can happen with work |
| Pushing something | Example of force |
| Pushing against a wall and the wall cannot move | Example of force without work |
| Observation | The use of the senses to collect information about the environment |
| Evidence | Supports whether a scientists observations are true or not |
| Inference | A conclustion that a scientist makes based on evidence |
| form | A shape or arrangement of parts of an object |
| function | the job or purpose of an object |
| a Car | Example of form |
| Car moving quickly for a long distance | Example of function |
| Screw | An inclined plane wrapped around a shaft or pole |
| To hold things together | What is the function of a screw? |
| Wheel | A circular frame rotating around an axle |
| axle | A rod fixed inside a wheel |
| wheel and axle | Two simple machines that move objects over a greater distance and use less work |
| lever | A stiff bar that moves about a fixed point called a fulcrum |
| fulcrum | The pivot point where the lever is supported |
| load | the object being lifted, pushed, or pulled |
| pulley | A wheel with a rope wrapped around it. |
| Fixed pulley Example: Raising flag on a flagpole | Stays in one place and changes the direction of the force |
| Moveable pulley Example: Window Blinds | is attached to the object being lifted and it desrease the amount of force needed to lift a load |
| Compound Machine | Machines that are made up of two or more simple machines working together |
| True | T or F compound machines make work easier;however, they do not reduce the amount of work. |
| Blender and sisscors | Example of a compound machine |
| Form example: car | Shape or arrangement of parts of an object |
| Function example: move quickly for a long distance | Job or purpose of an object |
