A man walks 1km due east and then 1 km due north His
displacement

The density of 400cm of palm oil was 0.9gcm-3 before frying. If
the density of the oil was 0.6gm-3 after frying, assuming no
loss of oil due to spilling, its new volume was?

Natural radioactivity consists of the emission of

Which of the following is true of an electrical charge?

Which of the following does NOT describe the Image formed
by a plane minor?

Which of the following best describes the energy changes
which take place when a steam engine drives a generator
which lights a lamp?

Cathode rays are

A narrow beam of white light can be split up into different
Colours by a glass prism. The correct explanation is that

The amount of heat needed to raise the temperature of 10kg of
Copper by 1K is its

The electrochemical equivalent of silver is 0.0012g/C. If 36.0g
of silver is to be deposited by electrolysis on a surface by
passing a steady current for 5mins, the current must be?

Shadows and eclipses result from the

Which of the following obeys Ohm’s law?

Which of the following statements are TRUE of isotopes?
I. Isotopes of an element have the same chemical properties
because they have the same number of electrons
II. Isotopes of elements are normally separated using physical
properties
III. Isotopes of an element have the same number of protons in
their nuclei

Which of the following may be used to explain a mirage?
I. Layers of air near the road surface have varying refractive
indices in hot weather
II. Road surfaces sometimes become good reflectors in hot
weather
III. Light from the sky can be reflected upwards after coming
close to the road surface.

Which of the following has the lowest internal resistance when
new?

The pitch of an acoustic device can be increased by

One of the features of the fission process is that

The linear expansivity of brass is 2 x 10 C . If the volume
of a piece of brass is 15.00cm at 0°C, what is the volume at
100°C

A lead bullet of mass 0.05 kg is fired with a velocity of 200 ms
into a lead block of mass 0.95 kg. Given that the lead block
can move freely. the final kinetic energy after impact is

In a series R-L-C circuit at resonance, the voltages across the
resistor and the inductor are 30V and 40V respectively. What is
the voltage across the capacitor?

If the fraction of the atoms of a radioactive material left after
120years is , 1/64 what is the half-life of the material? 1/64

The time rate of loss of heat by a body is proportional to the

A positively charged rod X is brought near an uncharged metal
sphere Y and is then touched by a finger with X still in place.
When the finger is removed, the result is that Y has

Electrical appliances in homes are normally earthed so that

Convex mirrors are used as driving mirrors because images
formed are

Musical instruments playing the same note can be
distinguished from one another owing to the difference in their

In homes, electrical appliances and lamps are connected in
parallel because

An object moves in a circular path of radius 0.5m with a speed
of 1 -1 ms . What is its angular velocity?

What effort will a machine of efficiency 90% apply to a load of
180N if its efforts arm is twice as long as its load arm?

What flows to the earth by connecting the conductor to the
earth?

choose the option that best completes the gaps. All God’s
prophets were given the great…

The inner diameter of a small test tube can be measured
accurately using a

A pulley system has three pulleys in the fixed block and two in
the movable block and if the pulley has an efficiency of 72%,
the mechanical advantage of the system is?

When an atom loses or gain a charge it becomes

A ball of mass 800g moving horizontally with a speed of 5m/s
hits a vertical wall and rebounds with the same speed. The
impulse experienced by the ball is?

The force between the molecules of a liquid in contact with that
of a solid is?

A body of mass 100g moving with a velocity if 10ms-1 collides
with a wall. If after collision it moves with a velocity of 2.0ms−1
in the opposite direction, calculate the change in momentum.

A 20kg mass is to be pulled up a slope inclined at 300 to the
horizontal. If efficiency of the plane is 75%. The force required
to pull the load up the plane is J [g=10ms ]

The tendency of a body to remain at rest when a force is
applied to it is called.

An object is placed 20cm from a concave mirror of focal length
10cm. The linear magnification of the image produced is?

The energy needed to move a unit positive charge around a
complete electric circuit is called the

The resistance of a 40W car head lamp, drawing current from
a 12V battery is ____.

A beam of light is incident from air to water at an angle of 300.
Find the angle of refraction if the refractive index of water is 4/3