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Transcript
Stewards Academy ASSESSMENT FEEDBACK Science Department Yellow Plus/ Yellow Blue Green White Explains how a person can get an electric shock and explains static electricity in terms of electric fields. Explains the concept that current is the rate of flow of charge. Rearranges and applies the equation Q = It. Recalls that the current in a series circuit is always the same and that the total current in a parallel circuit is the sum of the currents through each branch. Explains the effect of adding more resistors to series and parallel circuits. Analyses and interprets I–V graphs for a fixed resistor. Describes applications of diodes, thermistors and LDRs and explains their uses. Uses I–V graphs to determine if the characteristics of components are ohmic or non-ohmic. Explains the difference between direct and alternating potential difference. Explains the dangers of providing any connection between the live wire and earth or our bodies. Explains why electrical power is transmitted at high voltages in the National Grid. Recalls and applies the equation energy transferred E = QV. Recalls and applies the equation P = I2R. Recalls that there are two types of charge and that like charges repel and unlike charges attract. Remembers that charge is measured in coulombs (C) and recalls and uses the equation Q = It. Draws and recognises series and parallel circuits. Compares the brightness of lamps connected in series and parallel. Recalls and applies the equation V = I R and for series circuit Rtotal= R1 + R2. Draws I–V graphs for a fixed resistor. Describes the behaviour of a thermistor and LDR in terms of changes to their resistance. Explains the properties of components using I–V graphs. Recalls that domestic supply in the UK is 230 V a.c. and 50 Hz. Explains why a live wire may be dangerous even when a switch in the main circuit is open. Describes how step-up and step-down transformers change the potential difference in the National Grid. Recalls and uses the equation energy transferred E = Pt. Recalls and uses the equation P = V × I. Describes how insulating materials can become charged. Recalls that an electric current is a flow of electrical charge and is measured in amperes (A). Recognises and uses electric circuit symbols in circuit diagrams. Recalls that the current through a component depends on the resistance of the component and the potential difference across it. Sets up a circuit to investigate the relationship between V, I and R for a fixed resistor. States the main properties of a diode, thermistor and light-dependent resistor (LDR). Draws I–V graphs for filament lamps. Recalls that cells and batteries produce low-voltage direct current. Identifies live, neutral and earth wires by their colour-coded insulation. Recalls that the National Grid is a system of cables and transformers linking power stations to consumers. Understands that everyday electrical appliances bring about energy transfer. Recalls that power is measured in watts (W) and 1 kW = 1000 W. Some elements of the above have been achieved White Carrying out an experiment Evaluation Numeracy Writing a conclusion Solving problems Year 9 Separate Science (PHYSICS) P2 Electricity (AQA) Knowledge and Understanding Attainment Band : Attainment Band Green Blue With support With support With occasional support With occasional support With little support With little support With support With occasional support With support Yellow / Yellow Plus Skills Independently Ability to correctly follow a scientific method Independently Ability to build and use a circuit to determine resistance. With little support Independently Ability to evaluate methods and suggest possible improvements and further investigations With occasional support With little support Independently Ability to use scientific theories and explanations to develop hypotheses. With support With occasional support With little support Independently Ability to change the subject of an equation. With support With occasional support With little support Independently Ability to substitute numerical values into algebraic equations using appropriate units for physical quantities. With support With occasional support With little support Independently Ability to solves simple algebraic equations. With support With occasional support With little support Independently Ability to translate information between graphical and numeric form with. With support With occasional support With little support Independently Ability to use a graph to state whether the relationship between two variables which exhibit direct proportionality. With support With occasional support With little support Independently Ability to write a conclusion based on evidence. With support With occasional support With little support Independently Ability to use the BUSBY strategy to answer questions from the topic.