What does a speedometer measure?

A speedometer is an instrument located on the dashboard of a vehicle that specifically measures and displays the current speed at which the vehicle is traveling. It provides the driver with real-time information about how fast the vehicle is moving, which is crucial for safe driving and adhering to speed limits. Understanding vehicle speed helps drivers make informed decisions regarding acceleration, braking, and maintaining safe distances from other vehicles.

The other options refer to different functionalities: a distance traveled measurement is typically handled by an odometer, engine temperature is monitored by a temperature gauge, and fuel consumption is tracked separately, often shown by a fuel gauge or through specific onboard computer displays. Each of these devices serves distinct purposes that are important for vehicle operation, but the primary function of a speedometer remains focused solely on vehicle speed.