A factory uses a security system to control a security light. The system uses a sensor and a microprocessor. Explain how the security system makes use of the sensor and the microprocessor to control the security light.

2210_s18_qp_12

THEORY

2018

Paper 1, Variant 2

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An office has an automated lighting system. When movement is detected in the office the lights are switched on. If movement is not detected for a period of 2 minutes the lights are switched off. The system uses a sensor and a microprocessor. Describe how the automated lighting system uses a sensor and a microprocessor. A microprocessor uses ROM. Explain what is meant by ROM.

2210_s19_qp_12

THEORY

2019

Paper 1, Variant 2

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A security light system is used by a factory. The light only comes on when it is dark and when movement is detected. The light will stay on for 1 minute before switching off. Sensors and a microprocessor are used to control the security light system. Identify two sensors that would be used in the security light system. Sensor 1 Sensor 2 Describe how the sensors and the microprocessor control the security light system.

2210_s21_qp_12

THEORY

2021

Paper 1, Variant 2

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A farmer uses an automated robot to plant seeds in the field. State what is meant by the robot being automated. Give three characteristics of a robot. The robot plants seeds and stops when it reaches a fence. It then turns and continues planting seeds. The robot uses sensors and a microprocessor to know when it reaches a fence. Explain how the robot uses sensors and a microprocessor to know it has reached a fence. Give two advantages of the farmer using an automated robot to plant seeds. Give two disadvantages of the farmer using an automated robot to plant seeds. The robot is adapted to have machine learning capabilities. Explain how this will improve the robot.

2210_s24_qp_11

THEORY

2024

Paper 1, Variant 1

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A system uses pH sensors and a microprocessor to help monitor pollution in a river. The pH of the water should be between 6 and 8. The system outputs an alert if the pH of the water is not in this range. Explain how the system uses the pH sensors and the microprocessor to help monitor the pollution.

2210_w18_qp_12

THEORY

2018

Paper 1, Variant 2

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A manufacturing company uses an automated system in its manufacturing process. The automated system uses a flow sensor. Identify what a flow sensor measures. Explain one advantage to employees of using an automated system in manufacturing. Explain one disadvantage to the company owner of using an automated system in manufacturing.

2210_w23_qp_12

THEORY

2023

Paper 1, Variant 2

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A robot vacuum cleaner uses sensors to navigate around obstacles in a room. Tick (3) one box to show which sensor would be the most suitable for this purpose. A proximity B flow C pressure D level An expert system can be used to diagnose an error with a robot vacuum cleaner. Circle three components that are part of an expert system. knowledge base operating system firewall server printer actuator inference engine rule base encryption Explain how the robot vacuum cleaner can make use of machine learning.

2210_w24_qp_12

THEORY

2024

Paper 1, Variant 2

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A farmer has a plough that is an automated system. The plough is used to dig the ground in a field to prepare it for planting seeds. The plough uses sensors and a microprocessor to maintain a straight line when digging the ground. State what is meant by an automated system. Describe the role of the microprocessor in this process. Give two benefits to the farmer of using an automated system for this purpose. The plough uses artificial intelligence (Ato navigate its way around the field. Explain how the plough makes use of AI for this purpose.

2210_w24_qp_13

THEORY

2024

Paper 1, Variant 3

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A company uses robots in its factory to manufacture large pieces of furniture. One characteristic of a robot is that it is programmable. State two other characteristics of a robot. Give two advantages to company employees of using robots to manufacture large pieces of furniture. Give one disadvantage to the company’s owners of using robots to manufacture large pieces of furniture.

2210_s23_qp_11

THEORY

2023

Paper 1, Variant 1

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A garage uses an expert system to help diagnose any problems with cars that need repair. The expert system is an example of artificial intelligence (A. Describe what is meant by AI. A car has a problem with its braking system, so it is brought into the garage. Explain how the expert system operates and how it is used to help diagnose the problem.

2210_s24_qp_12

THEORY

2024

Paper 1, Variant 2

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