Smartphone sensors

What kind of sensor always points north?

• Magnetometer

• GPS

• Proximity Sensor

What kind of sensor uses satellites to locate you?

• Magnetometer

• GPS

• Proximity Sensor

What kind of sensor detects when your phone is close to your ear during a call?

• Magnetometer

• GPS

• Proximity Sensor

What is the minimum number of satellites needed to work out your location?

• 1

• 2

• 3

• 4

What kind of sensor tells the phone where it is pointing in 3 dimensions?

• GPS

• Magnetometer

• Gyroscope

• Accelerometer

What kind of sensor detects tilt and acceleration?

• GPS

• Magnetometer

• Gyroscope

• Accelerometer

Why does the screen turn off when your phone is close to your ear?

• To avoid light dazzling you.

• To reduce radiation to your brain.

• To prevent you from accidentally pressing something.

The most important function of the thermometer is to...

• Shut down the phone if it is overheating

• Help weather apps accurately tell you the current temperature

• Warm the phone up on cold days

What does the hygrometer measure?

• Air humidity

• Temperature

• Distance

• Water depth

A barometer measures air pressure and can help the phone to accurately measure...

• Altitude

• Location

• Time of day

• Likelihood of rain