SI units & unit conversion

Which are SI units?

• kilograms, kilometers, amperes, seconds

• kilograms, meters, amperes, seconds

• kilograms, meters, amperes, minutes

• grams, meters, amperes, minutes

To convert from km/hr to m/s you must

• $\times36$

• $\times3.6$

• $\div3.6$

• $\div36$

Converting from a smaller unit (meters) to a larger unit (kilometers) you

• divide

• multiply

1.25 km is equal to

• 125 m

• 125 000 cm

• 1 250 cm

• 1 250 000 000 nn

When converting from a smaller unit to a larger unit e.g. grams to kilograms, you should

• multiply by the conversion factor

• divide by the conversion factor

2.53 L is equal to

• 0.253 kl

• 25 300 ml

• 253 ml

• 2530 ml

Convert 65 km/h to SI units (rounding to nearest whole number)

• 65000 m/h

• 18 m/s

• 234 m/s

• 0.65 m/s

Tags

NGSS.MS-PS3-1

How would you write micrometers with symbols

• mm

• $\mu m$

• microm

• none of the above

Convert 5 m/s to km/h

• 0.005 km/h

• 1.4 km/h

• 18 km/h

• 5000 km/h

If a snail is moving at 0.1 m in 1/2 an hour, calculate its speed in cm/min

• 0.2 cm/min

• 0.3 cm

• 0.003 cm/min

• 20 cm/min