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Explain how temperature affects Brownian motion.
Date posted:
April 18, 2019
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Discuss the Maintenance of the Accumulators
Date posted:
April 15, 2019
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Define Electromotive Force (E.m.f) and Potential Difference
Date posted:
April 15, 2019
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Explain the applications of Thermal Radiation
Date posted:
April 15, 2019
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Explain the mode of Operation of the Six’s Thermometer
Date posted:
April 15, 2019
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Give the comparison between Mercury and Alcohol as Thermometric Liquids
Date posted:
April 15, 2019
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The height, h of a water manometer is 20 cm when used to measure pressure of a gas.
a) Determine the pressure due to gas, If atmospheric pressure is 103000N/m2.
b) What would be the height if the liquid used is glycerin of density 1.26g/cm3
Date posted:
April 15, 2019
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A sphere of diameter 6.0 mm is molded into a uniform wire of diameter 0.2mm. Calculate the length of the wire.
Date posted:
April 15, 2019
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An object whose area of contact with the floor is 5m2 exerts a pressure of 900 pascal. Calculate its mass
Date posted:
April 15, 2019
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A mixture consists of 40cm3 of water and 60cm3 of liquid X. If the densities of water and liquid X are 1.0g/cm3 and 0.8g/cm3 respectively, calculate the density of the mixture.
Date posted:
April 15, 2019
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The mass of a density bottle is 20.0g when empty, 70.0g when full of water and 55.0g when full of a second liquid x. Calculate the density of the liquid (take density of water to be 1g/cm3)
Date posted:
April 15, 2019
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A wooden block of mass 200g is 4.0 cm wide 3.0 cm thick and 6.0 cm long. Calculate the density of the wooden block in kg/m3
Date posted:
April 15, 2019
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What are the advantages of Electrical Balance (Top Pan Balance) Over the Beam Balance (Mechanical Type)?
Date posted:
April 15, 2019
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State the conditions under which displacement method works
Date posted:
April 15, 2019
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Find the volume of a sphere whose radius is 3.0cm
Date posted:
April 15, 2019
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In an experiment to estimate the height of a tree in Nyabururu Girls’ Secondary School compound, Grace recorded the following data.
I. Length of shadow of the tree= 1000cm
II. Length of shadow of the rod = 200cm
III. Height of the rod = 100cm
Determine the height of the tree
Date posted:
April 15, 2019
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Give the sources of Error When Using a Meter Rule
Date posted:
April 15, 2019
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Which factors are Considered When Choosing an Instrument for Measuring Lengths?
Date posted:
April 15, 2019
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Give reasons for Establishing SI Units?
Date posted:
April 13, 2019
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Show the relationship between Physics, Other Subjects and Technology
Date posted:
April 13, 2019
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An object is placed 30cm from a concave mirror of focal length 20cm. Calculate;
a. Image position
b. Magnification
Date posted:
April 11, 2019
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The diagram below shows the magnetic field pattern between two magnets, P and Q
State which of the two magnets P and Q is stronger. Explain
Date posted:
April 11, 2019
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A ball is projected vertically upwards with an initial velocity of 20 m/s. Determine
a. its maximum height
b. the time taken to return to its starting point.
Date posted:
April 10, 2019
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The figure below shows a 10- tick strip ticker tape chart of for the motion of a trolley. The ticker
tape timer was connected to a 50 Hz power supply. Which of the following statements is
true about the motion of the trolley?
Calculate the
a. total distance travelled
b. average velocity
c. acceleration of the trolley
Date posted:
April 10, 2019
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The figure below shows a ticker-tape for trolley used in an experiment.
If the frequency of the ticker timer was 50Hz, calculate,
a. Initial velocity
b. Final velocity
c. Acceleration of the trolley
Date posted:
April 10, 2019
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A swimer takes off straight up from a diving board 1.80 m above water surface in a pool and
falls into the swimming pool. If her initial velocity is 5 m/s , determine
a. The highest point above the board
b. Her velocity as she hits the water
c. The time she takes to hit the surface of water
Date posted:
April 10, 2019
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Using a ticker-timer that vibrates at a frequency of 50 Hz, a student carried out an experiment
to study the motion of a trolley.The figure below shows a tape chart consisting of 10-tick strips that
he obtained.
Calculate the
a. total distance travelled
b. average velocity
c. acceleration of the trolley
Date posted:
April 10, 2019
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The figure below shows ticker tape chart for a trolley pushed up a slope. Every section of the tape
contains 5 spaces. If the ticker-tape timer has a frequency of 50 Hz, determine the
acceleration of the trolley.
Date posted:
April 10, 2019
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The figure below shows a ticker-tape for trolley moving over an inclined plane, a frequency
of 50Hz.
Calculate,
a. Initial velocity
b. Final velocity
c. Acceleration of the trolley
Date posted:
April 10, 2019
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The ticker-tape in Figure below was produced by a toy car moving over an inclined plane.
If the ticker-tape timer produced 100 dots per second, find the
a. Initial velocity at A
b. Final velocity at B
c. Acceleration of the toy car.
Date posted:
April 10, 2019