Concave Mirror: Images formed and Characteristics.pptx

Presents how images are formed in a concave mirror, as well as the characteristics of a the images formed

1. Activity 1: Mirror, Mirror, What Do You See? Divide the class into small groups (4–5 members). Give each group a hand mirror or let them use their front camera. Ask the following questions: How does your image look? Is the image the same size, smaller, or larger?

2. Group Activity 2: Mirror in Everyday Life How does each object uses reflection?

3. Guide question: Why do some mirrors make things look bigger while others show them upside down?

4. CONCAVE MIRROR PRESENTED BY SHEILA MAE O. VILLANTES, T-III Dimaluna Integrated School

5. Learning Objectives: A.Identify the different images formed by concave mirrors depending on object position. B.Demonstrate how image formation occurs in concave mirrors Explain the relationship between object distance and image characteristics (size, position, and orientation).

6. Group Activity: Mirror Match Challenge Learners will work collaboratively to match key terminologies related to concave mirrors with their corresponding descriptions. Each group will receive a set of cut-out cards—one set with terms and another set with descriptions or examples. Their task is to correctly pair each term with its definition or real-life scenario within the given time limit. The first group to complete all matches correctly wins.

7. What is a Concave Mirror?

8. Principles of Ray diagram in a Concave Mirror 1. A ray parallel to the principal axis passes through the focus after reflection. When an incident ray travels parallel to the principal axis, the reflected ray will pass through the focal point (F) of the concave mirror.

9. Principles of Ray diagram in a Concave Mirror 2. A ray passing through the focus reflects parallel to the principal axis. Explanation: When an incident ray passes through the focus (F) before striking the mirror, its reflected ray will travel parallel to the principal axis.

10. 3. A ray passing through the center of curvature reflects back on itself. Explanation: A ray that goes through the center of curvature (C) strikes the mirror perpendicularly, because it hits the mirror along the radius. Therefore, it reflects back along the same path. Principles of Ray diagram in a Concave Mirror

11. 4. A ray striking the pole follows the law of reflection. Explanation: The angle of incidence equals the angle of reflection, measured relative to the principal axis at the mirror’s pole (P). Principles of Ray diagram in a Concave Mirror

12. Let’s Review

13. Activity 4: Ray Diagram Challenge 1. Assign each group one object position \ 2. Instruct them to draw two incident rays from the top of the object: One parallel to the principal axis (reflects through F) One passing through F (reflects parallel to the axis) 3. Groups find where the reflected rays meet and mark the image location. 4. L abel the type, size, and orientation of the image formed.

14. ICT-Based Activity: Virtual Mirror Lab Each group will choose 1 representative to move the object at different distances using simulation click the link: oPhysics.com

15. Group Activity: 3-2-1 Exit Ticket 3 facts learned about concave mirrors 2 examples of concave mirrors in real life 1 question they still have Groups post their cards on a “Reflection Wall.”

16. Short quiz

17. 1.When an object is placed beyond the center of curvature (C) of a concave mirror, the image formed is — A. Virtual, upright, and enlarged B. Real, inverted, and smaller C. Real, inverted, and same size D. Virtual, upright, and smaller

18. 2. What happens to the image when the object is placed at the center of curvature (C)? A. Image is real, inverted, and smaller B. Image is real, inverted, and same size C. Image is virtual, upright, and larger D. Image is virtual and same size

19. 3.When the object is located between the focus (F) and the mirror, the image formed is — A. Real and inverted B. Real and same size C. Virtual, upright, and enlarged D. Virtual and same size

20. 4.A concave mirror is used in a makeup mirror because it — A. Produces an upright and enlarged image B. Produces an inverted and smaller image C. Produces a real image at the same size D. Scatters light in all directions

21. 5.Which of the following correctly describes how a ray behaves in a concave mirror? A. A ray parallel to the principal axis passes through the center of curvature. B. A ray passing through the focus reflects parallel to the principal axis. C. A ray through the center of curvature reflects through the focus. D. A ray hitting the mirror at the pole always passes through the focus