G5_T3_WW1_SA1_REVIEWER

What is the primary function of a sensor?

• To generate electricity

• To detect and respond to changes in the environment

• To store data for future use

• To control robotic movements directly

Which of the following is an example of a sensor in daily life?

• A regular light bulb

• A motion-activated light

• A wooden door

• A manual switch

How does a sensor work?

• It converts electrical signals into physical changes

• It detects changes and converts them into electrical signals

• It stores information about its environment for later use

• It creates physical changes without any input

What type of sensor is used in a TV remote control?

• Ultrasonic sensor

• Water sensor

• Infrared sensor

• Smoke sensor

A touch sensor is commonly used in which of the following?

• Thermometers

• Elevator buttons

• Streetlights

• Smoke detectors

What type of sensor is used in automatic street lights?

• Touch sensor

• Ultrasonic sensor

• Light sensor

• Infrared sensor

Which sensor helps detect obstacles and follow lines in a robot?

• Touch sensor

• Ultrasonic sensor

• Light sensor

• Infrared sensor

What is an example of an ultrasonic sensor’s use?

• Parking sensors in cars

• Turning on street lights at night

• Detecting fire in buildings

• Measuring temperature changes

How do water sensors help in daily life?

• They measure sound waves

• They detect the level or presence of water

• They provide early warnings for fire

• They count the number of people in a room

A smoke sensor is used to:

• Measure temperature changes

• Detect early signs of fire

• Measure distances between objects

• Control electronic devices remotely