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LESSON 3 BALANCED AND UNBALANCED FORCES.pptx
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- 3. Look at theForces 5 N 5 N Equal Pushing Forces that are equal in magnitude(size) but opposite in direction are called Balanced Forces
- 4. Balanced Forces Do notcause a change in the object’s state of motion or rest. Rope remains unmoved because the rope is pulled with same forces at both ends. Car's speed stays the same because the forward and backward forces are equal.
- 5. Look at theForces 15 N 5 N Unequal Pushing Forces that are NOT equal and in opposite direction are called Unbalanced Forces
- 6. Unbalanced Forces Cause achange in the object’s state of motion or rest. The rope moves to the left because there is a greater force being applied on one side. The car will now speed up or accelerate because the forward and backward forces are no longer equal .
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- 8. 10N 10N 10N 10N Balanced At rest Balancedor Unbalanced? In Motion or At rest? Balanced At rest What else to Know? Balanced forces occur when two opposite forces results in no motion.
- 9. 10N 8N 10N 10N 8N Balanced or Unbalanced? In Motionor At rest? Unbalanced In motion Same Direction Opposite Direction Unbalanced In motion What else to Know? Unbalanced forces occur when one force is stronger that the other which results in motion.
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- 11. Balanced or Unbalanced? Abook sitting on a table. Balanced
- 12. Balanced or Unbalanced? Anarm wrestle and you won. Unbalanced
- 13. Balanced or Unbalanced? Adog pulling a dog toy with you and it’s a tie. Balanced
- 14. Balanced or Unbalanced? Abirdhouse hanging on a tree. Balanced
- 15. Balanced or Unbalanced? Atug-of-war with a team that fell down. Unbalanced
- 16. Balanced or Unbalanced? Ahammer coming down on a nail. Unbalanced
- 17. Balanced or Unbalanced? Acup sitting in a saucer. Balanced
- 18. Balanced or Unbalanced? Atennis ball going over the net. Unbalanced
- 19. Balanced or Unbalanced? Aboy pushing a boulder that won’t move. Balanced
- 20. Balanced or Unbalanced? Abowling ball sitting on an alley. Balanced
- 21. Give your ownexample of a day-to-day chore that shows balanced or unbalanced forces in it.
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Editor's Notes
- #2 What forces are present in this scenario? Gravitational and Normal Forces 2. What can you say about the strength of the opposing forces? Equal or Unequal? Equal 3. Is the man in motion or at rest? At rest or not moving 4. Are the forces balanced or unbalanced? Who says it is balanced? Who says it is unbalanced?
- #3 Ask: What can you say on the forces exerted in the opposite sides of the box? Equal or unequal? Equal
- #4 Tug of War: What are the forces present in based on the arrows shown in the pictures? Applied Forces What can you say about the applied forces on the rope given by the people playing tug of war? Are they equal or unequal? Equal Say: Remember, the rope remains unmoved o at rest momentarily because the rope is pulled with same forces at both ends. And with this situation we say that the forces are balanced. Moving Car: What are the forces present in based on the arrows shown in the pictures? Applied Force from the engine and the air resistance force What can you say about the forces present in this scenario? Are they equal or unequal? Equal Say: Remember, Car's speed stays the same because the forward and backward forces are equal. And with this situation we say that the forces are balanced.
- #5 Ask: What can you say on the forces exerted in the opposite sides of the box? Equal or unequal? Equal
- #6 Tug of War: What can you say about the forces given on the opposite sides of the rope? Are they equal or unequal? Unequal Where will the rope move now? To the left or to the right? To the left- where there is high force applied by the players. Say: Remember, the rope will move to the left where there is a greater force being applied. And with this situation we say that the forces are unbalanced. Moving Car: What can you say about the forces present in this scenario? Are they equal or unequal? Unequal What will be the movement of the car? Forward Say: Remember, the Car will now speed up or accelerate because the forward and backward forces are no longer equal. And with this situation we say that the forces are unbalanced.
- #10 To start our new topic, let's play a short game called “Spot the Difference“.