COPA MCQ's

1 : What is termed as the quantity of matter contained in a body   
A : Density  
B : Volume  
C : Mass  
D : Specific gravity    

2 : What is the force with which a body is attracted by the earth towards its centre    
A : Mass  
B : Weight  
C : Volume  
D : Density  

3 : What is called mass per unit volume of a substances    
A : Mass  
B : Weight  
C : Density  
D : Volume  

4 : What is called the ratio between the density of a substances density of water at 4°C
A : Density  
B : Specific gravity    
C : Mass  
D : Weight  

5 : What is the density of aluminium       
A : 2.7 g/cm3  
B : 3.7 g/cm3
C : 4.7 g/cm3  
D : 5.7 g/cm3  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6 : Wha is the mass if the density of a body is 7.6 g/cm3 and its volume is 25 cm3  
A : 190 grams  
B : 200 grams
C : 210 grams
D : 220 grams  

7 : What is the specific gravity of the solid if density of the solid is 19.5 g/cm3  
A : 18.0  
B : 18.5
C : 19.0
D : 19.5

8 : What is the density (r) in g/cm3 of an iron cube if it weighs (W) 4.8 kg and volume (V) is 640 cm3
A : 6.6 g/cm3
B : 6.9 g/cm3
C : 7.2 g/cm3  
D : 7.5 g/cm3

9 : What is the volume (V) of mercury in cm3 if mass (m) of mercury is 1 kg and density (r) is 13.6 g/cm3  
A : 73.53 cm3  
B : 73.43 cm3  
C : 73.33 cm3
D : 73.23 cm3

10 : What is the mass in gram if a force of 15 dyres acting on a mass m producing an acceleration of 2.5 cm/sec2  
A : 9 grams
B : 8 grams
C : 7 grams  
D : 6 grams

11 : What is the specific gravity of the metal if the piece of metal weighs 150 grams in air and 125 grams in water
A : 6  
B : 10
C : 15
D : 25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 : What is the volume of mercury in cm3 if the mass (m) of mercury is 136 grams (g) and density (r) of mercury is 13.6 g/cm3
A : 136 cm3
B : 13.6 cm3
C : 10.6 cm3  
D : 10.0 cm3  

13 : What is the block weighs (W) in kg if volume (V) is 320 cm3 and density 8.9 g/cm3
A : 2.948 kg
B : 2.848 kg
C : 2.648 kg
D : 2.448 kg

14 : What is the specific gravity of the metal if the weighs 6.5 kgf in air and 3.5 kgf in water
A : 6.166
B : 3.166
C : 2.166
D : 1.166  

15 : What is the weight force of a car has a mass of 800 kg(Take g = 9.81m/sec)
A : 7848 Newton
B : 7748 Newton
C : 7847 Newton
D : 7487 Newton