Q3 lesson 44 effects of force on the shape of an object BEVS.pptx

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1. Lesson 44: Effects of Force on the Shape of an Object Q3 Chapter 1: Effects of Force on Objects BEVERLY V. SANTIAGO Cat-Nag Elementary School San Clemente District

2. Objective: Explain the effects of force on the shape of an object

3. Force is either a push or a pull. It can be due to gravity, magnetism, friction or anything that might cause an object to move. Force can change the shape, size or movement of an object. BACKGROUND INFORMATION

4. Will the chair move if you push it? How about if you pull it? Why do you think your chair move when you pushed it? How about when you pulled it?

5. Force was applied on the chair.

6. How will you describe force? Can you cite other examples/situations when force is applied?

7. Watch video about force and energy.

8. Look at the object and tell what ways will you do in applying force into it. Tell what change will happen.

9. Activity Involvement Effects of force on the shape of an object. “What are the effects of force on the shape of an object?”

10. Object What I did to change the shape of the materials? What changes took place after I have applied force on the materials? Sponge Rubber ball Modelling clay Styrofoam Bar soap Chocolate bar Plastic drinking glass Foil paper Bottle cap Cupcake eggshell

11. Object What I did to change the shape of the materials? What changes took place after I have applied force on the materials? Sponge twisting shape Rubber ball Compressing shape Modelling clay Twisting, bending, stretching shape Styrofoam Twisting shape Bar soap Compressing shape Chocolate bar Pounding shape Plastic drinking glass Twisting shape Foil paper Twisting shape Bottle cap Pounding shape Cupcake Compressing shape eggshell pounding shape

12. Report of output by the pupils.

13. 1. What did you apply when you hammer, bend, stretch or crumple an object? 2. What happened to an object when force is applied on an object? Why? 3. From what you experiences, what can force do? Answer

14. 4. Sum up the lesson by completing the sentence below: Answer

15. 1. I applied force using hammer, fingers, hand, etc. 2. The shape of an object changed because force can change the shape of an object. 3. Force can push, pull, pound, compress, bend, twist, tear, stretch or squeeze.

16. 4. When force is applied on an object, the shape of the objects changes.

17. ELABORATION: The shape of an object changes when force is applied on it. Pushing, pulling, pounding, compressing, bending, twisting, tearing, stretching or squeezing are some ways of changing the shape of an object.

18. Jimmy is taller than his brother. He used his brother’s t-shirt without asking permission. It partly fits him. He stretched the shirt down to his waist. What do you think would happen to the t-shirt?

19. EVALUATION: MATERIALS CAN YOU CHANGE THE SHAPE? HOW? Noodles Chocolate bar Cartolina strip Toothpaste tube Plastic ruler Paper clip Plastic straw Candy wrapper

20. Assignment: Cite examples/situations when the force applied changed the shape of an object