C8.3 Speed

Presentation

•

Mathematics

•

8th Grade

•

Medium

Leong Yew Sheng Nicholas

Used 1+ times

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4 Slides • 10 Questions

C8.3 Speed

How to convert units in calculating speed?

Fill in the Blanks

1000 m = ? km

Fill in the number without the unit.

Type answer...

Fill in the Blanks

1 m = ? km

Fill in the number without the unit.

Type answer...

Fill in the Blanks

2 m = ? km

Fill in the number without the unit.

Type answer...

Fill in the Blanks

1 min = ? s

Fill in the number without the unit.

Type answer...

Multiple Choice

1 s = ? min

1/60

3600

1/3600

Multiple Choice

1 s = ? h

1/60

3600

1/3600

Take out Workbook 1B p29 Q1

Fill in the Blanks

Q1. The speed of a particle is 2 m/s.

Find the speed in kilometres per hour.

Type answer...

km/h

Fill in the number without the unit

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)

Fill in the Blanks

Redemption Question. The speed of a particle is 4 m/s.

Find the speed in kilometres per hour.

Type answer...

km/h

Fill in the number without the unit

Fill in the Blanks

Q2. A car is travelling 66 km/h.

Find the speed in metres per second.

Type answer...

m/s

Fill in the number without the unit (Round off to 3.s.f.)

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)

Fill in the Blanks

Redemption Question:

A car is travelling 10 km/h.

Find the speed in metres per second.

Type answer...

m/s

Fill in the number without the unit (Round off to 3.s.f.)

C8.3 Speed

How to convert units in calculating speed?

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