Waec Physics 2000 Past Questions and Answers

Question 1:

• WAEC 2000

The diagram above illustrates three forces T₁, T₂ and 100N in equilibrium. Determine the magnitude of T₁

A. 100 tan 30^o
B. \(\frac{100}{\cos 30^o}\)
C. 200 sin 30¹
D. \(\frac{200}{tan 30^o}\)

Question 2:

• WAEC 2000

The diagram above illustrates three forces T₁, T₂ and 100N in equilibrium. Determine the magnitude of T₁

A. 100 tan 30^o
B. \(\frac{100}{\cos 30^o}\)
C. 200 sin 30¹
D. \(\frac{200}{tan 30^o}\)

Question 3:

• WAEC 2000

An iron rod is moved from the earth to the moon. Which of the following properties of the rod would remain unchanged? i. mass ii. weight iii. relative density

A. I only
B. Ii only
C. Iii only
D. I and iii only

Question 4:

• WAEC 2000

A uniform cylindrical hydrometer of mass 20g and cross sectional area 0.54cm² floats upright in a liquid. If 25cm of its length is submerged, calculate the relative density of the liquid. (Density of water = 1 gcm^-3)

A. 1.54
B. 1.48
C. 1.25
D. 0.80

Question 5:

• WAEC 2000

The apparent weight of a body wholly immersed in water is 32N and its weight in air is 96N. Calculate the volume of the body. (Density of water = 1000kgm^-3, g = 10ms^-3)

A. 8.9 x 10m^-3m³
B. 6.4 x 10m^-3m³
C. 3.2 x 10m^-3m³
D. 3.0 x 10m^-3m³