A+ Question of the Week: Mobile Device Component

AplusQOW4Which of the following components can be used in a mobile device to detect if the device is being lifted or put down?

A. A GPS
B. A compass
C. A gyroscope
D. An accelerometer

The correct answer is D.

An accelerometer is a component used to detect the straight-line motion of a device, such as up/down, forward/back, and left/right. A gyroscope is used to detect rotational movement, such as pitch and yaw. Compasses and GPSs are used in geotracking.

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