Quick starter; Slideshow: 1.5.15 Understanding speed Change depending on direction List the factors involved in Worksheet 1.5.15 calculations of force and its size defining speed; explain a What is speed and how is Practical sheet simple method to measure it measured?; Interactive Speed and the quantitative 1.5.15 speed; use the speed activity: Order the objects relationship between average formula. from fastest to slowest; speed, distance and time Ice-cream splat: Key (speed = distance ÷ time) vocabulary game 1.5.16 Understanding Moment as the turning effect of a Describe the forces acting on Worksheet 1.5.16 Quick starter; Interactive turning forces force a see-saw; understand that activity: Turning forces; Practical sheet the forces turn about the Video: Seesaw tricks and 1.5.16 fulcrum; explain how to a 949 seesaw Technician’s notes balance different weights on a 1.5.16 see-saw. 1.5.17 Discovering State and use the law of Worksheet 1.5.17 Quick starter; Interactive moments moments; describe how activity: Order the size of Practical sheet turning forces can be the moments 1.5.17 increased; list some examples Technician’s notes of levers used as force 1.5.17 multipliers. Quick starter; Interactive 1.5.18 Understanding the Link the law of moments to Worksheet 1.5.18 Include the application of the design of cranes; explain activity: Counterweights; definition of Practical sheet moments why counterweights are Ice-cream splat: Key ‘moment’ 1.5.18 needed by cranes; investigate and the law vocabulary game Technician’s notes the lifting capacity of a crane. of moments 1.5.18 from lesson 1.5.17 Chapter 6: Energy Transfers and Sound
1.5.15 Understanding speed calculations Change depending on direction of force and its size Speed and the quantitative relationship between average speed, distance and time (speed = distance ÷ time) List the factors involved in defining speed; explain a simple method to measure speed; use the speed formula. Worksheet 1.5.15 Practical sheet 1.5.15 Quick starter; Slideshow: What is speed and how is it measured?; Interactive activity: Order the objects from fastest to slowest; Ice-cream splat: Key vocabulary game 1.5.16 Understanding turning forces Moment as the turning effect of a force Describe the forces acting on a see-saw; understand that the forces turn about the fulcrum; explain how to balance different weights on a see-saw. Worksheet 1.5.16 Practical sheet 1.5.16 Technician’s notes 1.5.16 Quick starter; Interactive activity: Turning forces; Video: Seesaw tricks and a 949 seesaw 1.5.17 Discovering moments State and use the law of moments; describe how turning forces can be increased; list some examples of levers used as force multipliers. Worksheet 1.5.17 Practical sheet 1.5.17 Technician’s notes 1.5.17 Quick starter; Interactive activity: Order the size of the moments 1.5.18 Understanding the application of moments Link the law of moments to the design of cranes; explain why counterweights are needed by cranes; investigate the lifting capacity of a crane. Worksheet 1.5.18 Practical sheet 1.5.18 Technician’s notes 1.5.18 Quick starter; Interactive activity: Counterweights; Ice-cream splat: Key vocabulary game Include the definition of ‘moment’ and the law of moments from lesson 1.5.17 Chapter 6: Energy Transfers and Sound