Physics 1999 Waec Past Questions and Answers

Question 6 :

• WAEC 1999

A motorcyclist, passing a road junction, moves due west for 8 s at a uniform speed of 5ms^-1. He then moves due north for another 6 s with the same speed. At the end of the 6s his displacement from the road junction is 50m in the direction of

A. N53^oE
B. N37^oE
C. N53^oW
D. N37^oW

Question 7 :

• WAEC 1999

The time rate of change of displacement is known as

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

Question 8 :

• WAEC 1999

A stone of mass 0.7kg is projected vertically , upwards with a speed of 5ms^-1. Calculate the maximum height reached. (Take g as 10ms^-2 and neglect air resistance)

A. 1.00m
B. 1.25m
C. 1.50m
D. 3.75m

Question 9 :

• WAEC 1999

If the force of attraction between the sun and the 1 planets is removed; the planets will

A. Fall towards the sun
B. Scatter and stop moving
C. Continue to move at tangent to their original orbits
D. Continue to move perpendicular to their original orbits. '

Question 10 :

• WAEC 1999

A 15kg mass, suspended from a ceiling, is pulled aside with a horizontal force, F, as shown in the diagram above. Calculate the value of the tension, T. (g = 10ms^-2)

A. 300.0N
B. 173.2N
C. 30.0N
D. 17.3N