# Physics SS 2 Curriculum Guides (Physics in Technology) – Application of Lenses and Plane Mirrors and Musical Instruments

THEME – PHYSICS IN TECHNOLOGY

### INSTRUCTIONAL MATERIALS

1. Small cardboard box e.g. empty sugar pack, empty lipton tea pack

2. Convex lenses of various focal lengths

3. Cardboard tube to mount lenses

### LEARNING OBJECTIVES

By the end of the lesson, students should be able to:

1. construct periscope, box camera, compound microscope, telescope and film projector.

2. explain the optical principles involved in the snapshot camera, the enlarging camera and the copying camera.

3. set up a single lens projector and use it to project a film strip on a screen.

4. explain the formation of images by the camera and the projector by tracing rays of light through them.

5. trace the paths of light rays through simple and compound microscopes and telescope.

### FOCUS LESSONS

1. Simple periscope

2. Simple camera and film projector

3. Simple and compound microscope

4. Telescope.

### LESSON PRESENTATION

TEACHER’S ACTIVITIES

The teacher,

1. lead students to construct device 1 – 5 listed in the student activity.

2. arrange a visit to a company that markets and services these devices.

3. show films/charts of these devices and their various parts.

4. lead discussion on the uses of these devices.

5. invite speakers to demonstrate the use of , and talk on, the importance of these devices to mankind.

STUDENT’S ACTIVITIES

The students construct,

1. simple periscope

2. box camera

3. compound microscope

4. telescope

5. telescope

5. film projector

6. solve simple problems on the formation of images in microscopes and telescopes.

### LESSON EVALUATION

Students to,

1. solve simple problems on microscopes and telescopes.

2. explain the optical principles involved.

3. construct and use the device.

THEME – PHYSICS IN TECHNOLOGY

### INSTRUCTIONAL MATERIALS

Some local materials used in constructing local musical instruments.

### LEARNING OBJECTIVES

By the end of the lesson, students should be able to construct various musical instruments.

### FOCUS LESSONS

Local Musical Instruments

### LESSON PRESENTATION

TEACHER’S ACTIVITIES

The teacher,

1. show the musical instruments used in the locality.

2. invite an expert to give a talk on the contribution of local musical instruments to the entertainment industry.

STUDENT’S ACTIVITIES

The students construct musical instruments used in your locality.

### LESSON EVALUATION

Students to,

1. identify various local musical instruments

2. construct some of them.

3. use them to produce music.