Physics 2004 Waec Past Questions and Answers

Question 11 :

• WAEC 2004

An elastic string of force constant 200N m^-1 is stretched through 0.8m within its elastic limit. Calculate the energy stored in the string

A. 64.0J
B. 80.0J
C. 128.0J
D. 160.0J

Question 12 :

• WAEC 2004

A machine of velocity ratio 5 is used in lifting a load with an effort of 500N. If the machine is 80% efficient. Determine the magnitude of load

A. 2500N
B. 2000N
C. 900N
D. 625N

Question 13 :

• WAEC 2004

The speed of an object in rectilinear motion can be determine from the

A. Area under a velocity-time graph
B. Area under a distance-time graph
C. Slope of a distance-time graph
D. Slope of a velocity-time graph

Question 14 :

• WAEC 2004

A body is said to be moving with uniform acceleration if it experiences equal

A. Increase in velocity at equal time intervals
B. Decreases in velocity at equal time intervals
C. Increases in speed at equal time intervals
D. Decreases in speed at equal time intervals

Question 15 :

• WAEC 2004

A body is dropped from a certain height above the ground level, falls with uniform

A. Speed
B. Velocity
C. Acceleration
D. Retardation