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6 Machines
Science
Term | Definition |
---|---|
Wheel and Axle | A circular object on a pole as a center. |
Lever | A flat surface on a pivot called a fulcrum. |
Screw | Inclined Plane wrapped around a rod or cylinder. |
Wedge | 2 inclined planes used to split things. |
Inclined Plane | Ramp. The slanted surface. A hill. |
Pulley | A string over a wheel one side goes up and the other side goes down. |
Balanced Forces | Equal forces acting on a object in opposite directions the object either sits still or stays at a constant speed. |
Unbalanced Forces | A nonzero net force,which changes an objects motion (speed up, slow down, constant speed) |
Gravity | A force that pulls objects together. |
Friction | The force that one surface exerts on another when the two rub against each other friction always slows down motion. |
Air Resistance | Friction that is caused by air. |
Speed | The amount of times to cover a certain distance. |
Velocity | Speed in a giving direction. |
Acceleration | A change in velocity an object will speed up slow down or change direction. |
Momentum | Product of mass and velocity. |
Newtons 3rd law | If one objects exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object. |
How would you improve your machine? | I would improve my Machine by...... |
Describe your steps on your machine. | 1..... 2.... 3.... 4..... 5... 6... |