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Physics
UTME / JAMB 2016
Current Electricity & Electric Circuits
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
Current Electricity & Electric Circuits
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
Units, Measurements & Dimensional Analysis
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
Current Electricity & Electric Circuits
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
Elasticity, Density, Pressure & Fluids
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
Elasticity, Density, Pressure & Fluids
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
Elasticity, Density, Pressure & Fluids
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
Units, Measurements & Dimensional Analysis
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)
Physics
WAEC / WASSCE 2016
Linear Motion, Projectiles & Kinematics
When a body is thrown vertically upwards, its velocity at the maximum height is
A
maximium
B
zero
C
double its initial value
D
half its initial value
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 #45598)
Physics
WAEC / WASSCE 2016
Waves, Sound & Vibrations
Resonance occurs when one vibrating object causes a second object to vibrate at its own natural
A
amplitude
B
speed
C
frequency
D
intensity
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 #45599)
Physics
WAEC / WASSCE 2016
Current Electricity & Electric Circuits
The mouth piece of a telephone handset converts
A
electrical energy to sound energy
B
sound energy to electrical energy
C
sound energy to radiowave
D
radiowave to sound energy
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 #45604)
Physics
WAEC / WASSCE 2016
Temperature, Thermometry & Thermal Expansion
In the clinical thermometer, the function of the kink is to i. Prevent the back flow of mercury after use. ii. Ensure the back flow of mercury after use. iii. Maintain the thermometric property of mercury. iv. Allow the temperature attained to be read.
A
i only
B
i and ii only
C
i and iv only
D
iii and iv only
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 #45605)
Physics
WAEC / WASSCE 2016
Calorimetry, Latent Heat & Change of State
Solution
Which of the following statements correctly defines the boiling point of a liquid? The temperature at which the
A
saturated vapour pressure equals the atmospheric pressure
B
molecules leaves the liquid at a rate equal to the rate at which they return
C
molecules leave the liquid at a rate higher than that at which they return
D
molecules leave the liquid at a rate lower than the rate at which they return
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
The boiling point of a liquid is the temperature at which the vapor pressure of a liquid is equal to the pressure of the atmosphere on the liquid, equal to 212^\circF (100^\circC) for water at sea level.
Source: Myschool Past Questions Archive (Record #45606)
Physics
WAEC / WASSCE 2016
Work, Energy, Power & Simple Machines
Diagram
Solution
The diagram given illustrates a force-distance graph for the motion of a wooden block. Determine the work done on the block when moved through a distance of 5m.
Attached Figure / Diagram
A
4J
B
15J
C
5J
D
100J
medium Difficulty
Verified Correct Answer: Option D
Physical Principles & Numerical Solution
W = FS = 20 X 5
= 100J
Source: Myschool Past Questions Archive (Record #45584)
Physics
WAEC / WASSCE 2016
Linear Motion, Projectiles & Kinematics
Solution
The two person of a body undergoing a uniformly accelerated motion are (10s, 10ms-1) and (30s, 50ms-1). On the velocity-time graph pf the body.
A
0.5ms-2
B
2.0ms-2
C
10.0ms-2
D
40.0ms-2
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
Slope = a = \(\frac{\deltav}{\deltat}\)
= \(\frac{50 - 10}{30 - 10}\)
= 2.0ms-2
Source: Myschool Past Questions Archive (Record #45587)