Physics test for first secondary school

1 - If the volume of an amoun1
1 - 5
2 - 50
3 - 500
4 - 5000

2 -  How many bottles of volume 10000 Cm³ is enough to fill atank of capacitty 1m³ 
1 - 1
2 - 10
3 - 1000
4 - 100

3 - If : x = 10g and y = 10kg , then the value of ( x + y ) is ............
1 - 10.1 kg
2 - 100.1 g
3 - 10.01 kg
4 - 10.01 g

4 - If the measuring unit of a physical quantity is kg/m.s² , then it's dimensional formula is .............
M.L.T
M.L-1.T-2
M.L-1.T2
M.L.T2

5 - If the dimentional formula of acceleration is M^x.T^y, then ..........
1- x= 1 , y = 1
2 - x =2 , y = -1
3 - x = 1 , y = -2
4 - x = 1 , y = 2

6 - If the force F acts on astatic body of mass m till it reaches velocity v during a time interval t , then the two physical quantities mv and Ft have..........
1 - different dimensions
2 - the same dimensions
3 - different measuring units
4 - no correct answer

7 - The relativeerror in measuring the area of a room is 0.06 where the actual value of the erea is 30m² , then the absolute error in measuring this erea is ..............
1 - 1.8 m2
2 - 0.002m2
3 - 0.06m2
4 - 1.2m2

8 - Astudent measured the length of wooden bar which is found to be 50.2 cm , while the actual value is 50 cm  . Accordingly ,  the absolute error= ...........
1 - 50 cm
2 - 2 cm
3 - 0.2 cm
4 - 0.04 cm

9 - In the previous question the relative error is............
1 - 50 %
2 - 10 %
3 - I.2 %
4 - 0.4 %

10 -If the dimensions of A are L².T and the dimensions if B are L.T² , then the dimensions of A-3B are..............
1 - L3.T3
2 - L.T
3 - L2.T2
4 - not defined