A glass slide i.e. blackened with soot or paint lines are drawn close together using
a razor blade or pin.
Githiari answered the question on September 18, 2017 at 16:52
-
Define amplitude
(Solved)
Define amplitude.
Date posted:
September 18, 2017
.
Answers (1)
-
State why optical fibres are preferred in communication to ordinary cables.
(Solved)
State why optical fibres are preferred in communication to ordinary cables.
Date posted:
September 18, 2017
.
Answers (1)
-
State two defects of a simple cell and how each can be minimized
(Solved)
State two defects of a simple cell and how each can be minimized.
Date posted:
September 18, 2017
.
Answers (1)
-
Give a reason why repulsion in magnetism is the surest way of testing polarity
(Solved)
Give a reason why repulsion in magnetism is the surest way of testing polarity
Date posted:
September 18, 2017
.
Answers (1)
-
Define the term acceleration.
(Solved)
Define the term acceleration.
Date posted:
September 18, 2017
.
Answers (1)
-
State two factors that would raise the boiling point of water to above 100oC.
(Solved)
State two factors that would raise the boiling point of water to above 100oC.
Date posted:
September 18, 2017
.
Answers (1)
-
Give a reason why weight of a body varies from one planet to another
(Solved)
Give a reason why weight of a body varies from one planet to another
Date posted:
September 18, 2017
.
Answers (1)
-
State two factors affecting conductivity of solids
(Solved)
State two factors affecting conductivity of solids.
Date posted:
September 18, 2017
.
Answers (1)
-
Distinguish between a basic physical quantity and a derived physical quantity giving an example of each
(Solved)
Distinguish between a basic physical quantity and a derived physical quantity giving an example of each.
Date posted:
September 18, 2017
.
Answers (1)
-
What is the name given to the method of charging an electroscope where it requires an opposite charge to the one of the charging materials?
(Solved)
What is the name given to the method of charging an electroscope where it requires an opposite charge to the one of the charging materials?
Date posted:
September 18, 2017
.
Answers (1)
-
A negatively, charged rod is brought close to (but not touching ) an uncharged sphere. If the sphere is momentarily earthed and then the...
(Solved)
A negatively, charged rod is brought close to (but not touching ) an uncharged sphere. If the sphere is momentarily earthed and then the rod is removed, briefly explain what happens.
Date posted:
September 18, 2017
.
Answers (1)
-
Distinguish between mass and weight of a body stating the S.I units for each
(Solved)
Distinguish between mass and weight of a body stating the S.I units for each.
Date posted:
September 18, 2017
.
Answers (1)
-
Define electric current and state its SI unit
(Solved)
Define electric current and state its SI unit
Date posted:
September 18, 2017
.
Answers (1)
-
State two factors which affect pressure in liquids
(Solved)
State two factors which affect pressure in liquids
Date posted:
September 18, 2017
.
Answers (1)
-
Name 3 types of forces that act without contact
(Solved)
Name 3 types of forces that act without contact
Date posted:
September 18, 2017
.
Answers (1)
-
State three precautions that must be taken when using the density bottle
(Solved)
State three precautions that must be taken when using the density bottle
Date posted:
September 18, 2017
.
Answers (1)
-
State why most braking systems use liquids and not gases.
(Solved)
State why most braking systems use liquids and not gases.
Date posted:
September 18, 2017
.
Answers (1)
-
One property of a liquid that is considered while constructing a liquid – in – glass thermometer isthat the liquid expands more than the glass...
(Solved)
One property of a liquid that is considered while constructing a liquid – in – glass thermometer is
that the liquid expands more than the glass for the same temperature change. State any other two
properties of the liquids that are considered
Date posted:
September 18, 2017
.
Answers (1)
-
State the assumption made when calculating the size of a molecule in the thin oil film experiment
(Solved)
State the assumption made when calculating the size of a molecule in the thin oil film experiment
Date posted:
September 18, 2017
.
Answers (1)
-
Show that the force driving the liquid through the U – tube is proportional to the height, h
(Solved)
Show that the force driving the liquid through the U – tube is proportional to the height, h
Date posted:
September 18, 2017
.
Answers (1)