The changes A system is an object or Presenting and writing Obtaining and presenting Energy: 6.1.1.1 2 involved in the way of objects. descriptions and primary evidence: energy is stored explanations: Describe, for common Investigation using simple when a system situations, the changes Ask students to explore machines around a changes. involved in the way questions such as: classroom/laboratory to look at Calculations to energy is stored when a changes in energy stores. Why do the wheels of a GCSE Boardworks include work done system changes. For bike get very hot when Compare three of the machines Work and Power – by forces and example: braking hard? investigated showing their Section when a current an object projected type of car is more similarities and differences. Mini Boards upwards efficient petrol or Present the findings to the – based on teacher’s a moving object hitting electric? group. The equations are own questions or an obstacle How is the gravitational covered in detail in Discuss energy wasted by the Boardworks an object accelerated potential energy store of sections 6.2.4, and machines and ways to reduce activities. by a constant force an object increased? 6.5.2. it. a vehicle slowing Why does a flow of Equations for work down electrons a wire Why does increasing the spring an electric kettle allow bulbs to light and done by a and constant make a spring more (animations) boiling water. motors to spin? work done when a difficult to stretch? Why does Kinetic energy: charge moves doubling the speed of a vehicle Calculate how energy is Describe the changes through a potential more than double the braking redistributed in a system involved in the way energy difference should distance? when it changes. is stored in simple systems. be known. Examples could include: Obtaining and presenting primary evidence: Work is done when vehicle braking systems charge flows in a circuit. (such as bike brakes) a ball being thrown upwards Plan and carry out an investigation to find the amount of energy transferred when various electrical appliances
6.1.1.1 The changes involved in the way energy is stored when a system changes. Calculations to include work done by forces and when a current The equations are covered in detail in sections 6.2.4, and 6.5.2. Equations for work done by a and work done when a charge moves through a potential difference should be known. A system is an object or of objects. Describe, for common situations, the changes involved in the way energy is stored when a system changes. For example: an object projected upwards a moving object hitting an obstacle an object accelerated by a constant force a vehicle slowing down an electric kettle boiling water. Calculate how energy is redistributed in a system when it changes. Work is done when charge flows in a circuit. 2 Presenting and writing descriptions and explanations: Ask students to explore questions such as: Why do the wheels of a bike get very hot when braking hard? type of car is more efficient – petrol or electric? How is the gravitational potential energy store of an object increased? Why does a flow of electrons a wire allow bulbs to light and motors to spin? Describe the changes involved in the way energy is stored in simple systems. Examples could include: vehicle braking systems (such as bike brakes) a ball being thrown upwards Obtaining and presenting primary evidence: Investigation using simple machines around a classroom/laboratory to look at changes in energy stores. Compare three of the machines investigated showing their similarities and differences. Present the findings to the group. Discuss energy wasted by the machines and ways to reduce it. Why does increasing the spring constant make a spring more difficult to stretch? Why does doubling the speed of a vehicle more than double the braking distance? Obtaining and presenting primary evidence: Plan and carry out an investigation to find the amount of energy transferred when various electrical appliances Energy: GCSE Boardworks – Work and Power Section Mini Boards based on teacher’s own questions or Boardworks activities. (animations) Kinetic energy: