Describe and explain what is when various electrical happening in of changes in appliances are in use. This energy stores when a motor is used should be restricted to to raise a load. appliances that can be run from standard laboratory power supply units. 6.1.1.2 The amount of Calculate the kinetic energy Ask students to explore questions Planning an approach. Gravitational 2 energy associated of a moving object, stored such as: Selecting and managing potential energy: with a moving by a stretched spring and variables: When an object falls is the object, or stored an object raised above decrease in the gravitational Determine the amount of by an object can ground level. potential energy store equal to the energy stored in a spring. be calculated. The kinetic energy of a increase in the kinetic energy store? Gravitational to Investigate the efficiency of Calculations to moving object can be kinetic energy Calculate: an electric used to lift a include kinetic calculated using the transfers: load by calculating the energy, elastic equation: Calculate the kinetic energy of a energy input from the power potential energy moving body. of the motor x time. The and gravitational energy stored by the object Calculate the amount of energy potential energy. can be found using: stored by various objects including Equations for stretched springs and objects raised (links to other kinetic energy and above the ground. Kinetic energy, EK, in types of energy, gravitational Obtaining and presenting Calculation of an object’s speed joules, J Mass, m, in calculations that potential energy primary evidence: given the kinetic energy of the kilograms, kg Speed, v, in can be done using should be known. metres per second, m/s object. Investigations looking into Mini White finding the speed of a trolley Boards) that travels down a ramp. Calculate the g.p.e. at the The amount of elastic Calculate the speed of an object, top of the ramp and the potential energy stored in a just before impact, when dropped
Describe and explain what is happening in of changes in energy stores when a motor is used to raise a load. when various electrical appliances are in use. This should be restricted to appliances that can be run from standard laboratory power supply units. 6.1.1.2 The amount of energy associated with a moving object, or stored by an object can be calculated. Calculations to include kinetic energy, elastic potential energy and gravitational potential energy. Equations for kinetic energy and gravitational potential energy should be known. Calculate the kinetic energy of a moving object, stored by a stretched spring and an object raised above ground level. The kinetic energy of a moving object can be calculated using the equation: Kinetic energy, EK, in joules, J Mass, m, in kilograms, kg Speed, v, in metres per second, m/s The amount of elastic potential energy stored in a 2 Ask students to explore questions such as: When an object falls is the decrease in the gravitational potential energy store equal to the increase in the kinetic energy store? Calculate: Calculate the kinetic energy of a moving body. Calculate the amount of energy stored by various objects including stretched springs and objects raised above the ground. Calculation of an object’s speed given the kinetic energy of the object. Calculate the speed of an object, just before impact, when dropped Planning an approach. Selecting and managing variables: Determine the amount of energy stored in a spring. Investigate the efficiency of an electric used to lift a load by calculating the energy input from the power of the motor x time. The energy stored by the object can be found using: Obtaining and presenting primary evidence: Investigations looking into finding the speed of a trolley that travels down a ramp. Calculate the g.p.e. at the top of the ramp and the Gravitational potential energy: Gravitational to kinetic energy transfers: (links to other types of energy, calculations that can be done using Mini White Boards)
AQA-8464-SOW-ENERGY.DOCX