UTME CBT FREE Practice Test – Physics

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The ability of a material to store an electric charge when its plates are at different potentials is referred to as its

A. conductance    B. inductance    C. capacitance    D. resistance


The letter F is placed in front of a plane mirror as illustrated in the diagram below.

Which of the following represents the image observed?


Light is considered as a transverse wave because it travels

A. through materials without causing disturbance of the medium
B. through space with constant speed
C. in a direction parallel to the plane containing the electric and magnetic fields
D. in a direction perpendicular to the plane containing the electric and magnetic fields.


An engineer intends to deviate a light ray from its path by 120o through reflection from a plane mirror. Calculate the angle of incidence.

A. 20o    B. 30o   C. 40o    D. 60o


The diagram shows the prism arrangement in a _____

A. binocular    B. spectrometer    C. periscope    D. projector.


The thermometric substance of an absolute thermometer is ___

A. alcohol    B. mercury    C. helium    D. platinum


When viewed straight down, a fish in a pond is

A. farther below than it appears to be
B. nearer than it appears to be
C. found at exactly the same point it is seen
D. seen beside its image


In the diagram above, the current I is ______


Which of the following statements is NOT true of the image in a plane mirror? The image is _____ 

A. the same size as the object     B. laterally inverted    C. virtual    D. magnified


The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for ____

A. improving the sharpness
B. creating an inverted image
C. magnification of the image
D. erection of the image


A ship moving northward with speed Vs is acted upon by a wind blowing due west at a speed Vw. Which of the following diagrams correctly indicates the velocity VR of the wind relative to the ship?


The hatch door of a submarine has an area of 0.5 m2. The specific gravity of sea water is 1.03. Assume that g = 10 ms-1, and neglect the atmospheric pressure. The force exerted by the sea water on the hatch door at a depth of 200 m is _____

A. 1.03 x 105 N    B. 1.03 x 104 Nm-2   C. 1.06 x 105 Nm-2   D. 1.03 x 103 N


A gas at a volume V0 in a container at pressure P0, is compressed to one fifth of its volume. What will be its pressure if it maintains its original temperature T?

A.       B.       C. Po      D. 5Po


A rectangular block of dimensions 2.0 m x 1.0 m x 0.5 m weighs 200 N. Calculate the maximum pressure exerted by the block on a horizontal floor.

A. 100 Nm-2     B. 200 Nm-2     C. 300 Nm-2     D. 400 Nm-2


In the figure below, an incident ray XY makes an angle of 15o with a fixed line AY which is normal to the surface of a plane mirror. If the mirror is turned as indicated by the arrow, through 40°, what angle will the reflected ray make with AY?  

A. 25o     B. 40o     C. 15o      D. 55o


A solid weighs 10.0N in air, 6.0 N when fully immersed in water and 7.0 N when fully immersed in a certain liquid X. Calculate the relative density of the liquid.

A. \frac{5}{3}     B. \frac{4}{3}     C. \frac{3}{4}     D. \frac{7}{10}


An object of mass 2 kg moving with a velocity of 3 ms-1 collides head-on with another object of mass 1 kg moving in the opposite direction with a velocity of 4 ms-1. If the objects stick together after collision, calculate their common speed.

A. 0.60 ms-1     B. 0.67 ms-1     C. 2.00 ms-1     D. 3.33 ms-1


Which of the following equations for the efficiency of a machine is correct






The image of an object formed by a convex mirror is

A. real, erect and enlarged
B. real, inverted and enlarged
C. virtual, erect and diminished
D. virtual, erect and enlarged


The efficiency of a machine is always less than 100% because the ___

A. work output is always greater than the work input.
B. load lifted is always greater than the effort applied
C. effort applied is always greater than the load lifted
D. velocity ratio is always greater than the mechanical advantage.


Natural radioactivity consists of the emission of _______ 

A. α-particles and β-rays
B. α-particles and X-rays
C. γ-rays and X-rays
D. α-particles, β-rays and γ-rays


The diagram shows two capacitors P and Q of capacitances and respectively connected to a d.c. source. The ratio of energy stored in P and Q is

A. 4:1         B. 2:1        C. 1:4        D. 1:2


The value of the series resistance required to convert the above galvanometer into a voltmeter with a full range deflection of 15 V is _______

A. 985 ohms   B. 990 ohms    C. 995 ohms    D. 1,000 ohms


As a positively charged rod is brought nearer to the top cap of a positively charged gold leaf electroscope the divergence of the leaves will _______ 

A. decrease to zero       B. steadily increase        C. decrease to zero and then increase        D. remain constant


For the wave motion represented in the figure above, the wavelength is given by

A. p    B. q     C. r     D. t


A 10 g mass placed on the pan of a spring balance causes an extension of 5 cm. If a 15 g mass is placed on the pan of the same spring balance the extension is _____ 

A. 3.3 cm   B. 6.5 cm    C. 7.5 cm   D. 10.8 cm


A gas with initial volume 2 x 10-6 m3 is allowed to expand six times its initial volume at constant pressure of 2 x 105 Nm-2. The work done is ___

A. 2.0 J    B. 4.0 J    C. 12.0 J    D. 1.2 J


What is the acceleration of a particle whose motion is graphically displayed in the above figure?  

A. 0.67 ms-2     B. 0.83 ms-2       C. 0.87 ms-2       D. 92 ms-2


Which of the following statements about Archimedes’ principle is correct? The upthrust on a body is a measure of the

A. mass of fluid displaced
B. weight of the body
C. volume of the body
D. weight of the fluid displaced.


The diagram above shows the lens arrangement in ______

A. a compound microscope      B. an astronomical telescope      C. a binocular      D. a periscope


A catapult used to hold a stone of mass 500 g is extended by 20 cm with an applied force F. If the stone leaves with a velocity of 40 ms-1, the value of F is

A. 4.0 x 104 N    B. 4.0 x 103 N    C. 2.0 x 103 N    D. 4.0 x 102 N


If the fraction of the atoms of a radioactive material left after 120 years is , what is the half-life of the material?

A. 2 years    B. 10 years    C. 20 years    D. 24 years


Beta particles are fast-moving

A. protons    B. electrons    C. neutrons    D. photons


Each of the following physical quantities is classified as a vector or a scalar quantity. Which of the classifications is correct?

A. Electric potential (Vector)
B. Momentum (Scalar)
C. Gravitational field intensity (Scalar)
D. Magnetic flux density (Vector)


If the refractive index of a medium is , what is the critical angle?  

A. 45°   B. 50°12’   C. 56°25’   D. 75°


The temperature at which the water vapour present in the air saturates the air and begins to condense is known as ______

A. boiling point     B. melting point     C. triple point     D. dew point


Which of the following quantities has the same unit as energy?

A. Power    B. Work    C. Force    D. Momentum


The resultant of two forces acting on an object is maximum if the angle between them is ______

A. 45o    B. 0o    C. 90o    D. 180o


The figure above shows a see-say which is exactly in balance. The weights of the people sitting on it are 50 kg, X kg and 15 kg as shown. They sit at distances of 1\frac{1}{2} m, 1\frac{1}{2} m and 2m from the pivot respectively. The value of X is ______

A. 30     B. 35     C. 70     D. 26 ¼


A gas would serve as an electrical conductor under ______

A. reduced pressure and reduced potential
B. reduced pressure and high current
C. increased magnetic field
D. exposure to visible light

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