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correct Answer: B- Sensing: capturing information from the environment.
💡 Explanation:
the first step in how sensors work is Sensing as the sensor captures information from the surrounding environment (such as heat, light, or sound). then the sensor converts this information into electrical signals that electronic devices can read. (signal conversion),finally, The signals are sent to another device to display the results or perform a specific operation. (transmission)
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correct Answer: A- Measure how far the robot is from objects.
💡 Explanation:
Distance Sensors measure how far the robot is from things around it. They help the robot avoid bumping into obstacles or other objects.
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correct Answer: C-To see if it’s bright or dark and adjust their work
💡 Explanation:
Light sensors help robots detect brightness levels so they can adjust and work properly in changing light conditions.
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correct Answer: B- Ultrasonic Sensors.
💡 Explanation:
Ultrasonic Sensors send out high-pitched sounds that we can't hear. When the sound hits something, it bounces back like an echo. The robot measures how long the echo takes to return to discover how far away the object is.
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correct Answer: A- To detect sound levels.
💡 Explanation:
Sound sensors help robots detect sounds in their surroundings. Some robots can listen and respond to voice commands, which means they can understand when someone speaks to them.
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correct Answer: D- detect movement and changes in direction
💡 Explanation:
Motion sensors can detect movement and changes in direction. These sensors allow the robot to know what is happening around it and help it interact with nearby objects.
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correct Answer: D- How hot/cold or how wet/dry the air is
💡 Explanation:
Temperature sensors measure heat levels, while humidity sensors measure the moisture in the air.
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correct Answer: C-Surgical robot.
💡 Explanation:
Surgical robot: This robot uses very detailed sensors to perform surgeries with high accuracy.
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correct Answer: D-Distance by sending out a laser beam.
💡 Explanation:
Laser Rangefinders are sensors that measure how far an object is by sending out a laser beam and waiting for it to bounce back. By measuring the time it takes, the device can tell the distance very accurately. These sensors are more accurate and can measure longer distances than ultrasonic sensors.
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correct Answer: D- They help robots perceive and react to their environment.
💡 Explanation:
sensors represent the "senses" of the robot, helping it to see, hear, sense, and even touch things around it.
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correct Answer: B- Taking pictures and adjusting screen brightness
💡 Explanation:
Sensors in smartphones help with actions like taking pictures, adjusting brightness, and knowing the phone’s location.
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correct Answer: C-To check speed, detect nearby cars, and help with parking
💡 Explanation:
Sensors in cars track speed, detect close objects and assist in parking safely
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correct Answer: A- Motion sensor
💡 Explanation:
Motion sensors detect movement and are used in smart homes to automatically turn on lights.
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correct Answer: D-Translates sound into signals the phone understands
💡 Explanation:
The microphone is a sound sensor that turns your voice into signals.
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correct Answer: B- The motion sensor moves the character in the game
💡 Explanation:
Motion sensors detect tilting and allow characters in games to move based on your phone’s direction.
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Photosynthesis vs Cellular Respiration - Practice Quiz