Surface area to volume ratio
chrispohmomanyi answered the question on February 9, 2018 at 10:49
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A crystal of potassium permanganate was carefully introduced at the bottom of water column held in a gas jar. After sometime, the whole volume of...
(Solved)
A crystal of potassium permanganate was carefully introduced at the bottom of water column held in a gas jar. After sometime, the whole volume of water was coloured. Explain this observation
Date posted:
February 9, 2018
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Answers (1)
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Define crystal cleavage
(Solved)
Define crystal cleavage
Date posted:
February 9, 2018
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Answers (1)
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State one factor that a bimetallic strip relies on for its working
(Solved)
State one factor that a bimetallic strip relies on for its working
Date posted:
February 9, 2018
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Answers (1)
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State one way a camera differs from the human eye.
(Solved)
State one way a camera differs from the human eye.
Date posted:
February 9, 2018
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The SI unit of capacitance is the Farad. Define the Farad.
(Solved)
The SI unit of capacitance is the Farad. Define the Farad.
Date posted:
February 9, 2018
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Answers (1)
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What property of cathode rays is demonstrated by the maltese cross?
(Solved)
What property of cathode rays is demonstrated by the maltese cross?
Date posted:
February 9, 2018
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Answers (1)
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State two operational differences between the C.R.O and the T.V tube.
(Solved)
State two operational differences between the C.R.O and the T.V tube.
Date posted:
February 9, 2018
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Answers (1)
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State any two maintenance practices for secondary cells
(Solved)
State any two maintenance practices for secondary cells
Date posted:
February 9, 2018
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Answers (1)
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How does intensity of radiation incident on a metal surface affect the photoelectrons emitted.
(Solved)
How does intensity of radiation incident on a metal surface affect the photoelectrons emitted.
Date posted:
February 9, 2018
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Answers (1)
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What is meant by threshold wavelength? ...
(Solved)
What is meant by threshold wavelength?
Date posted:
February 9, 2018
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Answers (1)
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State two ways of increasing the capacitance of a capacitor.
(Solved)
State two ways of increasing the capacitance of a capacitor.
Date posted:
February 9, 2018
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Answers (1)
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State and explain the applications of capacitors
(Solved)
State and explain the applications of capacitors.
Date posted:
February 9, 2018
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Answers (1)
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When Moses rubbed a glass rod on a duster and then held it near a few pieces of paper, it did not move them or...
(Solved)
When Moses rubbed a glass rod on a duster and then held it near a few pieces of paper, it did not move them or pick them up. He concluded that there was no transfer of electric charge between the duster and the brass rod. He was wrong. Give a reason why he was wrong
Date posted:
February 9, 2018
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Answers (1)
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State the applications of total internal reflection
(Solved)
State the applications of total internal reflection.
Date posted:
February 9, 2018
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Answers (1)
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State three properties of cathode rays
(Solved)
State three properties of cathode rays
Date posted:
February 9, 2018
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Answers (1)
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State why mains electricity for long distances is transmitted at high voltages.
(Solved)
State why mains electricity for long distances is transmitted at high voltages.
Date posted:
February 9, 2018
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Answers (1)
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Light passes through an opening of width 2 cm. Explain why light is not diffracted in the same way as sound at a similar size...
(Solved)
Light passes through an opening of width 2 cm. Explain why light is not diffracted in the same way as sound at a similar size opening.
Date posted:
February 9, 2018
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Answers (1)
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Why is a burn from steam of boiling water more severe than that of boiling water itself?
(Solved)
Why is a burn from steam of boiling water more severe than that of boiling water itself?
Date posted:
February 9, 2018
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Answers (1)
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A bullet is fired horizontally at a target. Neglecting air resistance, give a reason why the horizontal acceleration of the bullet is zero.
(Solved)
A bullet is fired horizontally at a target. Neglecting air resistance, give a reason why the horizontal acceleration of the bullet is zero.
Date posted:
February 9, 2018
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Answers (1)
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If the mirror is rotated through an angle of 10 degrees, by how many degrees will the reflected ray be rotated?
(Solved)
If the mirror is rotated through an angle of 10 degrees, by how many degrees will the reflected ray be rotated?
Date posted:
February 9, 2018
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Answers (1)