PRECIOUS SECONDARY SCHOOL, ARAMOKO-EKITI

1. 
   _______ is the work done when a quantity of charge moves between two point of potential differences measured in joules( a) electrical resistance (b) electrical energy (c) electrical power.
   
2. 
   Calculate the quantity of energy produced by an electric cooker when a voltage of 10v and a charge of 2coulumbs is applied (a) 18j (b) 20j (c) 12j.
   
3. 
   Which of the formula below is related to electrical energy (a) w=qv² (b) w=vit (b) w=qvb
   
4. 
   Magnets are _______ that generally ______ object towards them (a) device, substance (b) substance, attract (c) substance, repel.
   
5. 
   Temporary magnet are made up of (a) iron (b) steel (c)copper.
   
6. 
   Permanent magnet is made up of (a) steal (b) iron (c) silver.
   
7. 
   Field is a _______ where _______ is felt (a) region, force (b) location, current (c) domain, charge
   
8. 
   Calculate the energy in a lamp with a resistance 4ohms when a current of 5amps passes through it in 150sec (a) 15kj (b) 16kj (c) 17kj.
   
9. 
   Line of force don’t ______each other (a) intercept (b) absorb (c) repel.
   
10. 
    _______ is the time rate in which the energy is used up (a) electrical power (b) electrical power (c) potential different
    
11. 
    E.M.F. means (a) electromotion force (b) electromotive force (c) electromotor force.
    
12. 
    _________ is the total energy per current obtained from cell (a) electronic power (b) electromotive force (c) cell.
    
13. 
    Cells are arranged in (a) series and sequential (b) series and parallel (c) series and horizontal.
    
14. 
    Cohesive force exist between molecule of different substance is called ______ (a) different substance (b) the same substance (c) mixed substance.
    
15. 
    The force that exist between molecule if different substance is called (a) adhasive force (b) adhesive force (c) adhesive force.
    
16. 
    The unit of surface tension is _______ (a) NM^-2 (b) NM^-1 (c)MN^-1.
    
17. 
    _______ is the property of a liquid which opposed the relative motion between different layers (a) viscosity (b) visocity (c) viscosity.
    
18. 
    Which of the following is an effect of electrical energy? (a) time (b) resistor (c) voltage
    
19. 
    ______ is reached when stretched wire does not return to its original position (a) maximum load (b) yield point (c) cut point.
    
20. 
    Young molecule is expressed as ______ (a) E=FL/Ae (b) E=FM/Ae (c) E=FC/Ae.
    

(1)a. What is surface tension? (b) Calculate the surface tension in a fluid in which an object is applying a force of 20N at a distance of 10m on the fluid (liquid).

(2) What is viscosity? (b) State the effect of viscosity.

(3) What is elasticity? (b) State the hookies law.

(4) A force of 5N applied to an elastic spring of length 2m its to extendedby 0.01m. What will be the new length if a force of 10N is applied?

(5) A spring is compressed 3cm .Calculate the energy stored inthe spring , if its force constant is 300 NM^-1.