Page 127 - SK Year 6 Science DLP

SPEED
SPEED
KELAJUAN

Units for Speed

Speed involves the measurement of distance and time covered by a travelling
object. The unit for speed is a combination of both distance and time.
The following are a few examples of units of speed.
Stopwatch, measuring tape, marker pen, and adhesive tape

centimetre per This snail moves slowly
second (cm/s) because snails can only travel
1.3 centimetres in one second.
Therefore, the unit for its speed
1 second is cm/s.

1.3 cm/s

metre per second (m/s)

A squirrel can travel
5 metres in one second.
The unit for its speed is m/s.
1 second

5 m/s

kilometre per hour (km/h) A horse can travel as far as

76 km in one hour.
The unit for its speed is km/h.

1 hour

76 km/h
HOTS
HOTS

Why is the unit of speed in km/h not suitable in measuring the speed
of a pupil who is walking?

#TEACHER

The information above is obtained from
www.infoplease.com.
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