Question 1: Describe the main purpose of a switch in an electronic circuit.

Answer: A switch is used to open or close an electrical circuit, allowing or stopping the flow of current.

Question 2: Identify three common components found in simple electronic systems and briefly explain their functions.

Answer: Resistors regulate current flow, capacitors store electrical energy, and transistors amplify signals or act as switches.

Question 3: A circuit contains a battery, a switch, and a light bulb connected in series. Explain what happens when the switch is turned on.

Answer: When the switch is turned on, it closes the circuit, allowing current to flow from the battery through the light bulb, causing it to light up.

Question 4: Design Brief: You need to create a simple electronic doorbell system. List the main components you would include and explain their roles.

Answer: Main components include a button (to activate the system), a power source (battery), a buzzer or speaker (to produce sound), and a switch (to control the circuit).

Question 5: Sketch a basic circuit diagram for a system that turns on a lamp when a light sensor detects darkness. Label all components.

Answer: A correct sketch would show a light-dependent resistor (LDR), a switch, a power source, and a lamp all connected in a series or parallel circuit, with labels.

Question 6: Explain the difference between a series circuit and a parallel circuit.

Answer: In a series circuit, components are connected end-to-end so that current flows through each component one after the other. In a parallel circuit, components are connected across the same two points, providing multiple paths for current.

Question 7: Identify a safety consideration when working with electrical systems in design technology lessons.

Answer: Always disconnect the power supply before assembling or modifying circuits to prevent electric shocks.

Question 8: Draw a schematic plan for a burglar alarm system that uses a motion sensor and a siren. Include all necessary components.

Answer: A schematic plan should show a motion sensor connected to a control unit, which activates a siren. The power source and wiring connections should also be indicated clearly.

Question 9: Describe how an electronic sensor can be used in a home security system.

Answer: An electronic sensor, such as a motion detector or door sensor, can detect movement or opening and send a signal to trigger an alarm or alert the homeowner.

Question 10: Explain the importance of understanding electronic systems when designing modern consumer products.

Answer: Understanding electronic systems allows designers to create functional, safe, and efficient products that meet user needs and incorporate automation or smart features.