8g mageop

1.A physical quantity must be expressed with its number and ……….. . 1.unit

1. A unit is a ……….. quantity. 2.standard
2. Mass is a ……..quantity. 3.basic
   4.Area is a ……….quantity. 4.derived
   5.The British system is also called the ……. system. 5.FPS
3. Length , mass and ……. called basic quantities. 6.time
   7.The unit of mass in CGS system is ……….. . 7.gram
   8.We use a ruler for measuring ……….. . 8.length
4. The SI unit of area is the ……… . 9.m2

1. The SI unit for force is ……….. .
   (8) Mass is a measure of ………. .
   (9) The attracting force of the earth acting on a body is defined as ……… .
   (10) Weight is a …….. quantity.
   (11) One newton is equal to ……. dyne.
   (12) There are ……….. fundamental forces.
   (13) The gravitational force is a ……… range force .
   (14) Weight has both magnitude and ………. .