SECOND TERM: E-LEARNING NOTES JS 3 (BASIC 9) SUBJECT: BASIC TECHNOLOGY WEEK TWO CLASS: Basic 9 TOPIC: Mechanical Energy Transmission system Period one: Friction Content; -Definition of friction Nature/characteristics of friction Types of frictional force Effect of friction Advantages of friction Disadvantages of friction Methods of reducing friction Definition of friction Friction can be
SECOND TERM: E-LEARNING NOTES JS 3 (BASIC 9) SUBJECT: BASIC TECHNOLOGY SCHEME OF WORK WEEK TOPIC 1. Revision of first term work 2. Mechanical energy transmission system. (a) Friction (b) effects of friction (c) advantages and disadvantages of friction (d) methods of reducing friction (e) belt and chain drive (f) comparison with the gear
BASIC TECHNOLOGY REVISION QUESTIONS 1 *The property which causes a metal to return to its original shape after being bent or stretched is known as __* (A) Conductivity (B) Ductility *(C)* Elasticity (D) Malleability (E) Plasticity 2 *Ability of a metal pick small pieces of iron or pin is called __* (A) ductility (B) conductivity
NAME:……………………………………………………………………………………… CLASS:…………………………… SECOND TERM e – LEARNING NOTES JS 1 (BASIC 7) SUBJECT : BASIC TECHNOLOGY SCHEME OF WORK: WEEK TOPIC Revision of Last Term’s Work Board Practice: basic board practice: (1) setting drawing paper on the board. (ii) Sharpening pencil to conical point and knife edge. (iii) using the tee and set squares
Subject : Basic Technology Topic SCHEME OF WORK Class : JSS 3 Basic 9 Term : Second Term Weeks. Topics Week 1 Revision of first term work Week 2 Mechanical energy transmission system. (a) Friction (b) effects of friction (c) advantages and disadvantages of friction (d) methods