C8.3 Speed

C8.3 Speed

How to convert units in calculating speed?

Multiple Choice

1 s = ? min

• 1/60

• 60

• 3600

• 1/3600

Multiple Choice

1 s = ? h

• 1/60

• 60

• 3600

• 1/3600

Take out Workbook 1B p29 Q1

Did you nail it?

• convert 2 m to 0.002 km (divide by 1000 as 1000 m = 1 km)

• convert 1 s to 1/3600 h (divide by 3600 as 3600 s = 1 h)

• Speed in km/h = 0.002 km / (1/3600 h)

Did you nail it?

• convert 66 km to 66 000 m (multiply by 1000 as 1000 m = 1 km)

• convert 1 h to 3600 s (multiply by 3600 as 3600 s = 1 h)

• Speed in m/s = 66 000 m / 3600 s

• Speed in m/s = 18.3 m/s (3.s.f)