Waec Physics 2014 Past Questions and Answers

Question 11:

• WAEC 2014

The diagram above illustrates a uniform metre rule which is balanced on a pivot by some masses. Calculate the value of M

A. 500.0g
B. 400.0g
C. 44.4g
D. 25.0g

Question 12:

• WAEC 2014

The period of a simple pendulum X is 5s. What is the period of a simple pendulum Y which makes 50 vibrations in the same time it takes X to make 20 vibrations?

A. 12.5s
B. 2.5s
C. 2.0s
D. 1.2s

Question 13:

• WAEC 2014

Alcohol of mass 21g and density 0.7g cm^-3 is mixed with 10g of water. Determine the density of the mixture [density of water = 1.0gcm^-3]

A. 0.775gcm^-3
B. 0.875gcm^-3
C. 0.780gcm^-3
D. 0.880gcm^-3

Question 14:

• WAEC 2014

A device that converts mechanical energy into electrical energy is

A. A dynamo
B. An electric motor
C. An induction coil
D. A transformer

Question 15:

• WAEC 2014

The S.I unit of power is

A. N
B. Pa
C. W
D. J