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BALANCED OR NOT?
ANALOU L. MACUMPAS
ESTHER GRACE C. LEDESMA
Teacher I
Balance, Balance
Balance, Balance
Or not? Or not?
Balance, Balance, Balance
Balance, Balance, Balance
Or not? Or not?
(Repeat twice)
Note: Watermelon Tune
Short Review
Question 1a:
What does the word
balance mean in everyday
terms?
Question 1a:
What does the word balance mean in everyday
terms?
Answer: When something is stable . Equal . Not
falling over .
Question 1b:
What does the force mean in everyday terms?
Answer:
• Something that makes things
move (accelerate)
Question 1b:
What does the force mean in everyday terms?
Answer:
• A push or a pull
Question 2:
What does balance mean in scientific terms
when we are referring to forces?
Answers:
 The forces are the same.
 The forces are cancelling each other.
 One force counteracts the other.
Question 3:
How could you illustrate or represent balanced
forces? Answers:
 Some possible representations are:
seesaw , a balance beam , or a weighing scale
Lesson Purpose and
Intention
Lesson Purpose and Intention
 Help students use symbols in
communicating information in
Science
 Differentiate balanced and
unbalanced forces
 How forces can affect the way an
object moves
Lesson Language
Practice
FORCE
Opposite
Same
direction
Lesson Activity
Lesson Activity 1
Situation 1 Situation 2
Situation 3 Situation 4
Lesson Activity 2
Net Force
ois the sum of all forces acting on an object;
oWhen the forces acting on an object are balanced, there is
no net force and so the object will not move.
oWhen the forces acting on an object are unbalanced, there
is net force and so the object will move.
Question 1:
What does equal forces mean?
Answer:
The same sized forces – two or more
Question 2:
What are some ways that the motion of objects
might be changed?
Answer:
 They could start moving from being still
 They could speed up
 They could change direction
 They could stop moving
stop
moving
Start moving from being
still
speed up
change direction
Question 3:
What needs to happen for a force to
change an object’s motion?
Answer:
If an object is still, you would need to apply a force to it to
make it move.
If an object is moving, you could apply a force to it to make it
slow down, to make it change direction, or to make it go
faster.
Question 1:
In Lesson Activity 1, The stimulus shows four
ways to represent forces using symbols.
Which situations are representing balanced
forces?
Answer:
Situation 1 and 4
Question 2:
In Lesson Activity 1, Assuming the square objects are
the same size and mass, what do you predict would
be the movement of the objects in each situation
when the forces represented were applied to the
objects?
Answers:
The object in situation 1 will not move.
The object in situation 2 will move to the right.
The object in situation 3 will move to the left.
The object in situation 4 will not move.
Question 3:
Write a general statement that describes the
relationship between forces and the motion of an
object?
Answers:
If the forces acting on an object are balanced, the object will not
move.
If the forces acting on an object are unbalanced, the object will
move.
If there is no net force, the object will not move.
If there is a net force, the object will move.
Lesson Conclusion
Question 1:
What did you learn
from the lesson?
Question 2:
What are some things
you enjoyed about the
lesson?
Question 3:
What is something you
would like to learn more
about the topic?
Final question 
Is it balanced or
unbalanced?

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G8_CONSO1.pptx

  • 1. BALANCED OR NOT? ANALOU L. MACUMPAS ESTHER GRACE C. LEDESMA Teacher I
  • 2. Balance, Balance Balance, Balance Or not? Or not? Balance, Balance, Balance Balance, Balance, Balance Or not? Or not? (Repeat twice) Note: Watermelon Tune
  • 4. Question 1a: What does the word balance mean in everyday terms?
  • 5. Question 1a: What does the word balance mean in everyday terms? Answer: When something is stable . Equal . Not falling over .
  • 6. Question 1b: What does the force mean in everyday terms? Answer: • Something that makes things move (accelerate)
  • 7. Question 1b: What does the force mean in everyday terms? Answer: • A push or a pull
  • 8. Question 2: What does balance mean in scientific terms when we are referring to forces? Answers:  The forces are the same.  The forces are cancelling each other.  One force counteracts the other.
  • 9. Question 3: How could you illustrate or represent balanced forces? Answers:  Some possible representations are: seesaw , a balance beam , or a weighing scale
  • 11. Lesson Purpose and Intention  Help students use symbols in communicating information in Science  Differentiate balanced and unbalanced forces  How forces can affect the way an object moves
  • 15. Lesson Activity 1 Situation 1 Situation 2 Situation 3 Situation 4
  • 17. Net Force ois the sum of all forces acting on an object; oWhen the forces acting on an object are balanced, there is no net force and so the object will not move. oWhen the forces acting on an object are unbalanced, there is net force and so the object will move.
  • 18. Question 1: What does equal forces mean? Answer: The same sized forces – two or more
  • 19. Question 2: What are some ways that the motion of objects might be changed? Answer:  They could start moving from being still  They could speed up  They could change direction  They could stop moving
  • 20. stop moving Start moving from being still speed up change direction
  • 21. Question 3: What needs to happen for a force to change an object’s motion? Answer: If an object is still, you would need to apply a force to it to make it move. If an object is moving, you could apply a force to it to make it slow down, to make it change direction, or to make it go faster.
  • 22. Question 1: In Lesson Activity 1, The stimulus shows four ways to represent forces using symbols. Which situations are representing balanced forces? Answer: Situation 1 and 4
  • 23. Question 2: In Lesson Activity 1, Assuming the square objects are the same size and mass, what do you predict would be the movement of the objects in each situation when the forces represented were applied to the objects? Answers: The object in situation 1 will not move. The object in situation 2 will move to the right. The object in situation 3 will move to the left. The object in situation 4 will not move.
  • 24. Question 3: Write a general statement that describes the relationship between forces and the motion of an object? Answers: If the forces acting on an object are balanced, the object will not move. If the forces acting on an object are unbalanced, the object will move. If there is no net force, the object will not move. If there is a net force, the object will move.
  • 26. Question 1: What did you learn from the lesson?
  • 27. Question 2: What are some things you enjoyed about the lesson?
  • 28. Question 3: What is something you would like to learn more about the topic?
  • 29. Final question  Is it balanced or unbalanced?

Editor's Notes

  1. AIM. Ask a question. METHOD. What to do/procedure. RESULTS. What you measured/data. CONCLUSION. What you learned.s
  2. AIM. Ask a question. METHOD. What to do/procedure. RESULTS. What you measured/data. CONCLUSION. What you learned.s
  3. AIM. Ask a question. METHOD. What to do/procedure. RESULTS. What you measured/data. CONCLUSION. What you learned.s
  4. AIM. Ask a question. METHOD. What to do/procedure. RESULTS. What you measured/data. CONCLUSION. What you learned.s
  5. We want to be sure we know and understand about fair testing.
  6. Ask the students to complete the task below by watching the headings with their role/purpose. Explain that they are to use arrows to complete the matching/task. Ask students to provide answers and discuss where needed.
  7. Refer students to the main lesson stimulus and read out the text. Ask students to reads the text to themselves.
  8. Ask the students if there are words that they are not familiar with and give descriptions of any words that may be problematic.
  9. Ask the students if there are words that they are not familiar with and give descriptions of any words that may be problematic.
  10. Answer: He should use a thermometer
  11. Answer: He should use a thermometer
  12. Answer: He should measure the size of the balloons by weighing them three times.
  13. Answer: He should use a thermometer
  14. Answer: All the balloons he is using must be the same type and the same size to begin with. He must use the same scales to weight the balloons and the same thermometer to measure the temperature each time. He must do the experiment all on the same day so that the weather conditions are the same for all the measurements.
  15. Answer: All the balloons he is using must be the same type and the same size to begin with. He must use the same scales to weight the balloons and the same thermometer to measure the temperature each time. He must do the experiment all on the same day so that the weather conditions are the same for all the measurements.
  16. Answer: All the balloons he is using must be the same type and the same size to begin with. He must use the same scales to weight the balloons and the same thermometer to measure the temperature each time. He must do the experiment all on the same day so that the weather conditions are the same for all the measurements.
  17. Answer: All the balloons he is using must be the same type and the same size to begin with. He must use the same scales to weight the balloons and the same thermometer to measure the temperature each time. He must do the experiment all on the same day so that the weather conditions are the same for all the measurements.
  18. Describe the components of a scientific investigation and we want to be sure we know and understand about fair testing.