Electronics learning outcomes Input, process and output Traffic Answer to question Learning outcome Example question lights before I can say that an electronic system is made up of three parts: input, process and output. I can identify from a block diagram the input, process and output. Draw a block diagram of the three main parts of an electronic system From the block diagram below, what is the output device? microphone amplifier loudspeaker I can draw a block diagram showing the input, process and output subsystems of an electronic device. I can say that the microphone, thermistor, LDR and switch are examples of input devices Draw a block diagram showing the input, output and process for a baby’s monitor. Give an example of an input device. I can say that the microphone changes sound energy to electrical energy. I can say that the resistance of a thermistor changes with temperature. I can that the resistance of an LDR decreases as the light gets brighter. What is the energy in of a microphone? What happens the resistance of a themistor is the temperature increases? What happens to the reistance of an LDR if it gets dark? Traffic light after Input, process and output (continued) Learning outcome Example question I can pick an appropriate input device for a given application. I can say that an output device changes electrical energy into another form of energy. I can say that the loudspeaker, lamp, LED and electric motor are examples of output devices. I can say the energy change that takes place for a given output device. I can pick an appropriate output device for a given application. What input device would you find in automatic central heating? What is the starting energy for an output device? Give an example of an output device. What is the energy change for the following output devices: (a) LED? (b) buzzer? What output device would you find in a radio? Traffic lights before Answer to question Traffic light after Digital logic gates Learning outcome Example question Traffic lights before I can draw and identify the symbols for an AND, OR gates and a NOT gate Draw the symbol for a NOT gate. What is the logic gate drawn below? I can say that: high voltage = logic 1 low voltage = logic 0 I can say that for a NOT gate the output it the opposite of the input. I can say that for an AND gate both inputs must be high for the output to be high. What does it mean when a switch is at logic 1? If the input of a NOT gate is logic 0, what is the output? Look at the logic inputs for the AND gate below, what will the output be? 1 0 __ _ Answer to question Traffic light after Digital Logic gates (continued) Learning outcome Example question I can say that for an OR gate either input must be high for the output to be high. Traffic lights before Look at the logic inputs for the OR gate below, what will the output be? 1 0 I can explain how to use combinations of logic gates for control in simple situations. __ _ A student is asked to design a circuit to remind a car driver tat the car lights have been left on after the ignition switch has been switched off. A buzzer is to sound when the lights are on but only when the ignition is switched off. The light sensor gives logic 1 when the lights are on. Draw a suitable block (logic) diagram of the circuit. Answer to question Traffic light after