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Speed = Distance Ć· Time. The speedometer shows current speed in km/h.
![8.3 Speed - Measurement of Time an - Class 7 (Curiosity - [Teachoo] - Concepts](https://cdn.teachoo.com/test/39b146b3-a15c-4bae-bb99-c8b03f1a4739/image-a-car-on-a-road-with-a-large-speedometer-showing-60-km-h-alongside-the-formula-speed-distance-time-written-clearly.png)
Speed tells us how fast something is moving.
A fast object covers more distance in the same time.
A slow object covers less distance in the same time.
A fast object covers more distance in the same time.
A slow object covers less distance in the same time.
š Important Points
The SI unit of speed is
metre per second (m/s)
.
Speed is also often written in km/h (kilometre per hour).
More distance in less time = higher speed.
Speed is also often written in km/h (kilometre per hour).
More distance in less time = higher speed.
Definition ā Speed
It is the distance covered by an object per unit of time.
Speed = Distance Ć· Time.
SI unit: metre per second (m/s).
Also expressed in km/h.
Speed = Distance Ć· Time.
SI unit: metre per second (m/s).
Also expressed in km/h.
š
Science and Society ā Speedometer and Odometer
Speedometer shows current speed ā odometer shows total distance.
Look at the dashboard of any car or bike.
The speedometer shows how fast the vehicle is going right now.
The odometer shows the total distance the vehicle has ever travelled.
Both are fitted in all motor vehicles.
The speedometer shows how fast the vehicle is going right now.
The odometer shows the total distance the vehicle has ever travelled.
Both are fitted in all motor vehicles.
Look at the dashboard of any car or bike.
The speedometer shows how fast the vehicle is going right now.
The odometer shows the total distance the vehicle has ever travelled.
Both are fitted in all motor vehicles.
The speedometer shows how fast the vehicle is going right now.
The odometer shows the total distance the vehicle has ever travelled.
Both are fitted in all motor vehicles.
