PHYSICS MULTIPLE CHOICE QUESTIONS SET 30

PHYSICS   

MULTIPLE CHOICE QUESTIONS SET 30

1. The product of the moment of inertia and the angular acceleration is
A.  Torque           
B.  Work                
C.  Force         
D.  Angular momentum
Answer: A (Torque)
 
2. The law of floatation was invented by
A. Wright Brothers        
B. Archimedes’                
C. Galileo            
D. Newton
Answer: B     Archimedes’
 
3. Relative humidity is measured by
A.  Hygrometer           
B.  Potentiometer              
C.  Hydrometer       
D.  Lactometer
Answer:  A Hygrometer
 
4. Who developed the atom bomb?
A.  Robert Opan Heemar         
B.  Samual Cohen        
C.  Bernor Bon Bron        
D.  Adberd Taylor
Answer: B Samual Cohen
 
5. Which one of the following is the unit of activity of a radioactive source?
A.  Tesla               
B.  Lux                     
C.  Becquerel                  
D.  Siemens
Answer: C Becquerel
 
6. Core of transformer is made up of
A.  Steel               
B.  Aluminium                     
C.  Copper                    
D.  Soft iron
Answer: D Soft iron
 
7. Light year is the unit of
A.  Time                    
B.  Mass                       
C.  Intensity of light                     
D.  Distance
Answer: D Distance
 
8. The unit of work is
A.  Newton               
B.  Joule                     
C.  Dyne                         
D.  Watt
Answer: B Joule
 
9. Which one of the following reactions is the main cause of the energy radiation from the Sun?
A.  Diffusion reaction              
B.  Chemical reaction         
C.  Fission reaction   
D.  Fusion reaction
Answer: D Fusion reaction
 
10. Which one of the following remains constant while throwing the ball upward?
A.  Acceleration       
B.  Kinetic energy        
C.  Force            
D.  Velocity
Answer: A Acceleration