1 - Pressure - Teachers Note – 1 This document has 3 pages; - Pressure and its unit - Pressure in solids - Pressure in liquids - Transmission of pressure by liquids - Pascal’s principle - Application of Pascal’s principle (Hydraulic lift) New Teachers can use this document as a lesson plan. 2 - Pressure - Teachers Note – 2 This document has 4 pages; - Pressure of Gases - Atmospheric pressure - Torricelli’s experiment - Barometers - Manometers New Teachers can use this document as a lesson plan. 3 - Buoyancy (Up thrust Force) - Archimedes’ Principle - Teachers Note This document has 2 pages New Teachers can use this document as a lesson plan. 4 - Pressure - Quick review for EXAM (This document has 4 pages & 47 questions) You should install these Fonts for this document; (Marker Felt & Tempus Sans ITC) Everything is ready to be used or easily edited to suit your learners. You can get easily student feedback from this subject with these systematic documents.

1. Sound Waves – PPT To attract the attention of students to the subject, daily life animations were used. This resource includes 60 slides; - (questions with Answer key) - Physics around us... Everything is ready to be used or easily edited to suit your learners. You should install these Fonts for this document; (Marker Felt aAND Tempus Sans ITC) With this PPT, Candidates should be able to: (a) describe the production of sound by vibrating sources. (b) describe the longitudinal nature of sound waves and describe compression and rarefaction. (c) state the approximate range of audible frequencies for the healthy human ear as 20 Hz to 20 000 Hz. (d) explain why a medium is required in order to transmit sound waves and describe an experiment to demonstrate this. (e) describe a direct method for the determination of the speed of sound in air and make the necessary calculation. (f) state the order of magnitude of the speeds of sound in air, liquids, and solids. (g) explain how the loudness and pitch of sound waves relate to amplitude and frequency. (h) describe how the reflection of sound may produce an echo. (i) describe how the shape of a sound wave as demonstrated by an oscilloscope is affected by the quality (timbre) of the sound wave. (j) define ultrasound. (k) describe the uses of ultrasound in cleaning, quality control, and pre-natal scanning. 2. Sound Waves – Quiz - This resource includes 8 pages with Answer Sheet You can get easily student feedback from this subject with these systematic documents. You should install these Fonts for these documents; (Marker Felt AND Tempus Sans ITC) 3. Sound Waves – Puzzle This resource includes; - 15 different types of puzzles with answer keys as pdf and word documents, (44 pages) - Study sheet Vocabulary Words: Amplitude Audible range Compression Decibel Diffraction Doppler Effect Echo Echolocation Frequency Infrasonic Intensity Longitudinal Wave Loudness Mechanical Wave Medium Noise Pitch Rarefaction Sonar Sonic boom Timbre Threshold of pain Ultrasonic Ultrasound Vacuum Vibration You can teach the Sound easily with this document. You should install these Fonts for this document; (Marker Felt AND Tempus Sans ITC)