Physics 2005 Waec Past Questions and Answers

Question 6 :

• WAEC 2005

A body of mass 25kg, moving at 3ms^-1 on a rough horizontal floor is at rest after sliding through a distance of 2.50m on the floor. Calculate the co-efficient of sliding friction. [g = 10.0ms^-2]

A. 0.09
B. 0.18
C. 0.36
D. 0.54

Question 7 :

• WAEC 2005

Which of the following simple machines is a second class lever?

A. Wheel barrow
B. Crowbar
C. Claw hammer
D. Seesae

Question 8 :

• WAEC 2005

A wheel and axle of radii 800mm and 200mm respectively is used to raise a body of weight 800N by the application of 250N. Calculate the efficiency of the machine

A. 85%
B. 80%
C. 60%
D. 20%

Question 9 :

• WAEC 2005

Masses,m¹ and m² at the 20-cm and 65-cm marks respectively of a uniform metre rule freely suspended at its centre of gravity. If the metre rule balances horizontally, determine the ratio m² : m¹

A. 2 : 1
B. 3 : 3
C. 2 : 3
D. 1 : 2

Question 10 :

• WAEC 2005

Which of the following type of motion does a body undergo when acted upon by a couple?V

A. Vibrational
B. Translational
C. Rotational
D. Random