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Physics
UTME / JAMB 2016
Mechanics and Properties of Matter
Solution
The impulse of a force is deduced from Newton's second law as
A
F = ma
B
F = m( \(\frac{v - u}{t}\))
C
F = mg
D
F = mv - mu
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
Force = mass x acceleration
But acceleration = \(\frac{v - u}{\text{t}}\)
F = m x (\(\frac{v - u}{\text{t}}\))
Ft = mv - mu.
Source: Myschool Past Questions Archive (Record #44733)
Physics
UTME / JAMB 2016
Mechanics and Properties of Matter
Boiling occurs when the vapour pressure of a liquid is
A
At the evaporation point
B
Less than the atmospheric pressure
C
Greater than the atmospheric pressure
D
Equal to the atmospheric pressure
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #44734)
Physics
UTME / JAMB 2016
Waves and Optics
Solution
If the magnification of a virtual image formed by an object 10cm from a convex less is 3, then the focal length of the lens is
A
10cm
B
20cm
C
25cm
D
15cm
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
M = \(\frac{v}{u}\) = 3 = \(\frac{v}{30}\). V = 30m
\(\frac{1}{u}\) + \(\frac{1}{v}\) = \(\frac{1}{f}\) = \(\frac{1}{10}\) - \(\frac{1}{30}\) = \(\frac{1}{f}\)
\(\frac{3 - 1}{30}\) = \(\frac{1}{f}
f = \(\frac{30}{2}\) = 15cm
Source: Myschool Past Questions Archive (Record #44735)
Physics
UTME / JAMB 2016
Mechanics and Properties of Matter
Diagram
Solution
In the diagram above, which of the following velocity-time graphs shows uniform acceleration of a body from rest?
Attached Figure / Diagram
A
C
B
D
C
B
D
A
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
See the velocity-time graph.
Source: Myschool Past Questions Archive (Record #44737)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Diagram
In the diagram above, the neutral point is at
Attached Figure / Diagram
A
R
B
X
C
S
D
P
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #44738)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Diagram
Solution
From the diagram above, the measuring accuracy of the micrometer screw gauge is
Attached Figure / Diagram
A
4.78mm
B
4.16mm
C
4.66mm
D
4.70mm
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
Micrometer screw gauge reading = main scale reading + vernier scale reading
= 4.0mm + 16mm = 4.16mm
Source: Myschool Past Questions Archive (Record #44739)
Physics
UTME / JAMB 2016
Mechanics and Properties of Matter
Diagram
Solution
In the diagram above, the direction of the force between N and S in the magnetic field is
Attached Figure / Diagram
A
MP
B
SN
C
NS
D
PM
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Magnetic field lines flow from the north pole to the south pole. The force direction is from the north pole (N) toward the south pole (S).
Source: Myschool Past Questions Archive (Record #44740)
Physics
UTME / JAMB 2016
Heat Energy & Temperature
Which of the following statements is Not true about atoms?
A
Atom of different elements have different atomic weights
B
The mass of an atom is concentrated in the nucleus
C
An atom is made up of a nucleus and number of electrons
D
Atoms of all elements are identical
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #44741)
Physics
UTME / JAMB 2016
Waves and Optics
Solution
The frequency of beats produced when two tunning forks of frequencies 258Hz and 270Hz are sounded close to each other
A
6Hz
B
264Hz
C
528Hz
D
12Hz
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
Beat = f2 - f1 = 270 - 258 = 12Hz
Source: Myschool Past Questions Archive (Record #44742)
Physics
WAEC / WASSCE 2016
Mechanics and Properties of Matter
Solution
The dimensions of momentum are
A
MLT
B
ML-1T-1
C
MLT-1
D
ML-1T
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Momentum = kgms-1 = MLT-1
Source: Myschool Past Questions Archive (Record #45576)
Physics
WAEC / WASSCE 2016
Mechanics and Properties of Matter
A student measures the volume of a liquid using a measuring cylinder. What else needs to be measured by the student in order to determine the density of the liquid?
A
depth of the liquid in the cylinder
B
mass of the cylinder
C
mass of the liquid
D
tempersture of the liquid
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #45578)
Physics
WAEC / WASSCE 2016
Heat Energy & Temperature
Diagram
Solution
The diagram given, represents the graph of stress against strain for an elastic wire. The point Q on the graph is the
Attached Figure / Diagram
A
elastic linit
B
breaking point
C
yield point
D
proportional limit
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
The terminal point Q, where the graph abruptly ends, represents the exact moment the material snaps, which is the breaking point (or fracture point).
Source: Myschool Past Questions Archive (Record #45579)
Physics
WAEC / WASSCE 2016
Mechanics and Properties of Matter
Solution
A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases.
A
i only
B
i and ii only
C
ii and iii only
D
i, ii and iii
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
Terminal velocity refers to the constant speed that an object reaches as it falls through a liquid or gas.
Since the net force on the object is zero, the object has zero acceleration.
Source: Myschool Past Questions Archive (Record #45580)
Physics
WAEC / WASSCE 2016
Heat Energy & Temperature
Which of the following substances lowers the surface tension of water?
A
metal
B
sand
C
detergent
D
paper
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #45581)
Physics
WAEC / WASSCE 2016
Mechanics and Properties of Matter
Solution
An object of volume 400cm3 and 2.5gcm-3 is suspended from a spring balance with half its volume immersed in water. Determine the reading on the spring balance. (Density of water = 1gcm-3)
A
1200g
B
1000g
C
800g
D
400g
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Mass = density x volume
400 x 2.5 = 1000g
Loss in mass = volume x density
= \(\frac{400}{2}\) x 1 = 200g
Reading on spring balance = 1000 - 200g = 800g
Source: Myschool Past Questions Archive (Record #45583)