Waec Physics 2007 Past Questions and Answers

Question 6:

• WAEC 2007

A mass of mass m, experiences a viscous drag, F and an upthrust, U as he descends towards the ground at a steady velocity, Using a parachute. If the acceleration of free fall is g, which of the following expressions is correct?

A. FU = mg
B. U + F - mg = 0
C. U - F = mg
D. F - U - mg = 0

Question 7:

• WAEC 2007

a body moving at a constant speed accelerates when it is in

A. Rectilinear motion
B. Translational motion
C. Circular motion
D. Vibrational motion

Question 8:

• WAEC 2007

An object of mass 2 kg moves with a uniform speed of 10ms^-1 for 5s along an straight path. Determine the magnitude of its acceleration

A. 0 ms^-2
B. 1 ms^-2
C. 3 ms^-2
D. 4 ms^-2

Question 9:

• WAEC 2007

The team rectilinear acceleration means the rate of increase of

A. Velocity along a circular path in a unit time
B. Distance along a rectangular path in a unit time
C. Displacement along a straight-line path in a unit time
D. Velocity along a straight-line path in a unit time

Question 10:

• WAEC 2007

A body moving with an initial velocity U accelerates until it attains a velocity of V within a time t. The distance, s covered by the body is given by the expressions

A. S = (\(\frac{v - u}{2}\))t
B. S = (\(\frac{v + 2u}{2}\))t
C. S = (\(\frac{v + u}{2}\))t
D. S = (\(\frac{2v + u}{2}\))t