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Understanding Forces: Balanced vs. Unbalanced | Science Notebook

Dive into the concept of balanced and unbalanced forces, learning how they impact the motion of objects. Explore Newton's laws and force measurement techniques in an interactive science activity.

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Understanding Forces: Balanced vs. Unbalanced | Science Notebook

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  1. Sunday April 26th • Supplies: • - Pen or pencil • - Science notebook

  2. Balanced & Unbalanced Forces • or • Who do you think you’re pushing?!

  3. What’s a Force? • To put it simply a force is apushor apull.

  4. What’s a Force? • A force can give energy to an object causing the object to start moving, stop moving, or change its motion.

  5. What’s a Force? • Forces are measured in Newton's or N.

  6. Balanced Forces • Forces occur in pairs.

  7. Balanced Forces • Forces can be either balanced or unbalanced.

  8. Balanced Forces • Balanced forces do not cause a change in motion.

  9. Balanced Forces • Balanced forces are equal in size and opposite in direction. 10 N 10 N Draw this picture into the Balanced Forces Box

  10. Unbalanced Forces • Unbalanced forces always cause a change in motion.

  11. Unbalanced Forces • Unbalanced forces are unequal and opposite in direction. 5 N 15 N

  12. 1- Are the dogs pulling equal or unequal? Equal

  13. 2- Will the dogs move or stay still? Stay still

  14. 3- Are the forces opposite or together? Opposite

  15. 4- How could you get the bag to move? Put both dogs on the same side

  16. 1000 Newtons 1000 Newtons Circle the best answer: 1. The forces shown above are PUSHING / PULLING forces. 2. The forces shown above are WORKING TOGETHER / OPPOSITE/FORCES. 3. The forces are EQUAL / NOT EQUAL. 4. The forces DO / DO NOT balance each other. 5. The resultant force is 1000 N TO THE RIGHT / 1000 N TO THE LEFT /ZERO. 6. There IS / IS NO motion.

  17. 200 Newtons 100 Newtons 7. The forces shown above are PUSHING / PULLING forces. 8. The forces shown above are WORKING TOGETHER / OPPOSITE/FORCES. 9. The forces are EQUAL / NOT EQUAL. 10. The forces DO / DO NOT balance each other. 11. The stronger force is pulling to the RIGHT / LEFT. 12. The weaker force is pulling to the RIGHT / LEFT. 13. Motion is to the RIGHT / LEFT.

  18. 30N 60N Exit Ticket- Answer each question • What happens to an object when forces are balanced? 2. What happens to an object when forces are unbalanced? 3. Are the forces balanced or unbalanced? 4. In what direction will they move?

  19. Forces Practice 1- Venn Diagram Large circle= 1 fact 1 example Small circle= 1fact 2- Statements Read each statement and tell if it is balanced or unbalanced 3- Arrow Examples For each picture answer the following: 1) is there motion 2) if motion what direction 3) what is the net force.

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