22-23 Review unit 1

(exercise 2)Mass is a...

• Derived physical quantity

• the SI unit is kg

• the SI unit is g

(exercise 2) kilogram per cubic meter is...

• a SI unit of capacity

• a SI unit of density

• a SI unit of mass

(exercise 2)The temperature...

• can be measured in Kelvin

• the SI unit is ºC

• is a base magnitude

(exercise 3) 27g are converted to the SI units, you get...

• 0.00027kg

• 27000kg

• 0.027kg

• 270kg

(exercise 3) 50dm³ ....

• are 0.050m³

• the SI unit is m³

• measure volume

• measure surface area

(exercise 3) 30 dam²...

• measures volume

• measures surface area

• are 3000m²

• are 0.3m²

(exercise 4) True or false:

“The criminal act took place in a classroom of 0.02hm² ”  (your real classroom has an area of about 20m²) 

• 0.02hm² are 20m²

• 0.02hm² are 200m²

• Yes, it is true because the dimensions are the same as my class

• It is false because a classroom can't be so large

(exercise 4) True or false:

“Near the window an iron bar of 0,0015km long,  has been found ”  (your real classroom is 6m long)

• It is true because it fits in my classroom

• It is false because it does't fit in my classroom

• 0.0015km are 15m

• 0.0015km are 1.5m

(exercise 5) 56hm³ are...

• 560 dam³

• 560 dam³

• 0.56 dam³

• 56000 dam³

(exercise 5) 0.120m³ are

• 120000 cm³

• 12 cm³

• 1200 cm³

• 1.2 cm³