lesson1 part 2 prep1

1. Density of red copper is 8.8 gm/cm3 means

• a. the mass of the unit volume of red copper equals 8.8 gm.

• b. the mass of the unit volume of red copper does not equal 8.8 gm.

• c. the mass of IO cm3 of red copper equals 8.8 gm.

• d. the mass of the unit volume of red copper equals 0.8 gm.

6-................................ is from the substance that float on water surface.

• a. Iron

• b. Copper

• c. Cork

• d. Aluminium

7-cooking pans are made up of..............

• a- iron.

• b- alumimum

• c- wood

• d-plastic.

8-All of the following substances conduct electricity except.................................

• a. iron

• b. aluminium

• c. wood.

• d. copper.

2-The volume of liquid is calculated from the relation.........................

• 
• 
• 
• 

3-The mass of water in gm is always ....................its volume in cm3 (Knowing that the(density of water is Igm/cm3)

• a. double

• b. less than

• c. more than

• d. equal to

4-The following cubes have the same mass. Which one has the highest density ?

• 
• 
• 
• 

5-The density of a substance whose mass is 15 gm and occupies 30 is................. the density of water.

• a. less than

• b. more than

• c. equal to

• d. double