Sensors

Where might a Humidity sensor be used?

• A Shop

• A Green House

• A Car

• A Mobile Phone

Which sensor measures weight?

• Light Sensor

• Pressure Sensor

• Motion Sensor

• Proximity Sensor

Define the term 'sensor'. Choose the most appropriate definition.

• Used to capture and can measure physical quantities

• A hardware device that collects data and stores it.

What type of sensor would be used in a washing machine?

• Light Sensor

• Water-level Sensor

• Infra-red sensor

• Motion Sensor

In an automated system, what type of device is a sensor?

• Input device

• Output device

• Memory device

• Processing device

What is this called?

• Line Follower

• Motor Controller

• Bumper Switch

• Limit Switch

Ultrasonic waves are a form of _______ waves

• sound

• ocean

• radio

• seismic

Strain is defined as ________

• Change in height per unit height

• Change in weight per unit weight

• Change in length per unit length

• Change in diameter per unit diameter

A piezoelectric transducer has a _________

• Very high sensitivity

• Low sensitivity

• High sensitivity

• Zero sensitivity

Thermistor follows which law for small variations________

• Charlie's law

• KVL

• KCL

• Ohm's law