PREPARED BY: WILIEMAR P. DELOS REYES GOOD MORNING STUDENTS
What was our topic last meeting? 2. What were the three laws of planetary motion and their definition?
What have you observed in our game? 2. Do you have any idea about our topic for today? Based on our game activity?
Exploring Force Direction and Magnitude LET’S HAVE AN ACTIVITY
Objective: • Understand Aristotle’s classification of motion (natural and violent motion) • Observe real-life examples and compare them with Aristotle’s ideas. • Identify limitations of Aristotle’s view and introduce modern concepts. Materials Needed: • A small ball • A piece of paper • A book or any small heavy object • A ramp (can be a wooden plank or any inclined surface) Experiment: o Drop a ball and a piece of paper from the same height. Ask students what they observe. o Roll a ball down a ramp and then let it roll on a flat surface. Ask: “What happens when there is no force acting on it?” o Push a book on a table and stop pushing. Ask: “What happens when you stop applying force?” Guided Questions: o According to Aristotle, why does the ball fall faster than the paper? o Why does the book stop moving after you push it? How did Aristotle explain this? o Based on your observation, do you agree with Aristotle’s explanation? Why or Why not?
• Aristotle, an ancient Greek Philosopher - Natural Motion Happens without external force. Objects move toward their natural place based on their composition (earth, water, air, or fire).
Examples: A rock falls to the ground (earth moves toward). Smoke rises (air and fire move upward).
• - Violent Motion Requires an external force to occur. An object moves only as long as the force is applied.
Examples: Pushing a cart or throwing a ball. A boat moving because of rowing.
Key ideas about Aristotle’s view of motion: Heavier objects fall faster than lighter ones Motion requires force; when the force is removed, the object stops moving. Objects move through a medium, and their speed depends on resistance.
For example: A parachutist falling through the air is a great example.
What can forces do? Why is it still important to study the idea of Aristotle today? How can understanding Aristotle’s motion theory help us appreciate the development of scientific knowledge?
Directions: Read very carefully the following statements and choose the best answer from the given choices. 1. According to Aristotle, which of the following describes natural motion? a. Motion that requires an eternal force b. Motion caused by friction c. Motion that happens naturally without force d. Motion that always moves in a circular path 2. What did Aristotle believe about the motion of objects in a medium (like air or water)? a. Objects move faster in a vacuum than air b. The speed of an object depends on the resistance of the medium c. All objects move at the same speed regardless of medium d. The motion of an object is independent of the medium
3. Which of the following is an example of Aristotle’s concept of violent motion? a. A rock falling to the ground b. A balloon rising into the air c. A person pushing a cart d. The moon orbiting the Earth 4. According to Aristotle, why do objects fall to the ground? a. Because of gravitational force b. Because they are seeking their natural place c. Because air resistance pushes them down d. Because of the rotation of the Earth 5. Why is it still important to study Aristotle’s view of motion today? a. His ideas are still 100% correct in modern science b. His concepts help us understand the history of scientific thought c. Scientists today still use his theories for modern physcis d. Aristotle was the last scientist to study motion
Assignment: Instructions: Answer the following question based on your understanding. Use your own words to explain your thoughts clearly. Write your answer on 1 whole sheet of paper. 1. How can Aristotle’s way of thinking inspire modern scientists? Format: Write your answers in a short essay format (at least 2 paragraphs) Use simple and clear explanations. You may include diagrams or drawings to illustrate motion concepts. A person pushing a trolley A crate on a surface