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“I LIKE TO MOVE IT, MOVE IT”

“I LIKE TO MOVE IT, MOVE IT”. Remember, it took 2000 years to fully understand these concepts!!!. FORCE:. Is a PUSH or a PULL They are described by how STRONG they are AND by the DIRECTION in which they act. FORCE:. We use ARROWS to symbolize forces

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“I LIKE TO MOVE IT, MOVE IT”

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  1. “I LIKE TO MOVE IT, MOVE IT” Remember, it took 2000 years to fully understand these concepts!!!

  2. FORCE: • Is a PUSH or a PULL • They are described by how STRONG they are AND by the DIRECTION in which they act.

  3. FORCE: • We use ARROWS to symbolize forces • The HEAD of the arrow shows the DIRECTION of the force. • The WIDTH of the arrow shows the STRENGTH of the force.

  4. FORCE: • Forces can be ADDED together or SUBTRACTED from each other.

  5. ADDING FORCES • If the forces (arrows) are in the SAME direction then you ADD the strength of the arrows together. • Ex: 2N + 3N = 5N • The NET FORCE would be 5N. • If you guessed that N stands for Newton ( as in Isaac Newton) you are right! • Movement would occur in the direction of both arrows.

  6. SUBTRACTING FORCES • If the forces (arrows) are in OPPOSITE directions then you would SUBTRACT the strength of the arrows. • Ex: 2N + 3N = 1N • The NET FORCE would be 1N. • Note: these 2 forces are UNEQUAL in strength. • Movement would occur in the direction of the stronger force.

  7. SUBTRACTING FORCES • If the forces (arrows) are in OPPOSITE direction AND they are EQUAL in strength then they would cancel each other out and equal zero. • There would be NO movement. The NET FORCE would be zero.

  8. NET FORCE • Is what we call the overall force on an object after all of the forces are added (or added by subtraction) together.

  9. UNBALANCED FORCES • When the NET FORCE on an object is a value other than zero, the forces are said to be unbalanced. • These forces can cause an object to START moving, STOP moving, or CHANGE DIRECTION. In other words, unbalanced forces cause an object to accelerate.

  10. BALANCED FORCES • When the NET FORCE on an object is zero, the forces are said to be balanced. • These forces cause NO change in the motion of the object.

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