K.C.S.E Physics Q & A - MODEL 2007PP1QN12&13
​The graph in figure 7 shows the relationship between the pressure and temperature for an ideal gas. Use the information in the figure to answer questions 12 and 13
​State the unit of the horizontally axis
Write a statement of the gas law represented by the relationship
answer
12. Kelvin (K) in words ( one triangle used follow)
13. The pressure of a fixed mass of a gas is directly proportional to its absolute ( Kelvin temperature provided the volume is kept constant P & T volume constant
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K.C.S.E Physics Q & A - MODEL 2007PP1QN11
State two factors that effect the melting point of ice
answer
K.C.S.E Physics Q & A - MODEL 2007PP1QN09&10
​ The graph in figure 6 shows the velocity of a car in the first 8 seconds as it accelerates from rest along a straight line. Use the graph to answer questions 9 and 10.
Determine the distance traveled 3.0 seconds after the start
Determine the acceleration of the car at 4.0 seconds K.C.S.E Physics Q & A - MODEL 2007PP1QN08
​Figure 5 shows a uniform bar of length 1.0 m pivoted near one end. The bar is kept in equilibrium by a spring balance as shown.
Given that the reading of the spring balance is 0.6 N. Determine the weight of the bar.
K.C.S.E Physics Q & A - MODEL 2007PP1QN06&7
​Figure 4 show two identical balloons A and B. The balloons were filled with equal amounts of the same type of gas. The balloons are suspended at distances X1 and X2 from a metal cube filled with boiling water and placed on an insulating material. Use this information to answer questions 6 and 7.
​State the mode by which heat travels from the cube to the balloons
The face of the cube towards A. is bright and shiny and the face towards B is dull black. State with reason the adjustments that should be made on the distances X1 and X2 so that the rate of change of temperature in both balloons is the same. K.C.S.E Physics Q & A - MODEL 2007PP1QN04&5
Figure 3 shows the levels of two liquids A and B after some air has been sucked out of the tubes through the tap. Use this information and the figure to answer questions 4 and 5.
​State the reason for the rise in the levels of the liquids when air is sucked from the tubes
Given that the density of liquid B is 1200 kgm3, determine the density of liquid A. K.C.S.E Physics Q & A - MODEL 2007PP1QN03
Figure 2 shows a tube of varying cross sectional area​
​Arrange the speed V1V2V3 and V4 in decreasing order starting with the highest
answer
​V2 V4 V1 V3
K.C.S.E Physics Q & A - MODEL 2007PP1QN01&02
​Figure 1 shows a metal cube of mass 1.75g placed between the jaws of a micrometer screw gauge. The magnified portion of the scale is also shown. The reading on the gauge when the jaws were fully closed without the cube was 0.012 cm. Use this information and the figure to answer questions 1 and 2
​What is the length of the cube?
Determine the density of the metal cube giving your answer correct to three significant figures K.C.S.E Physics Q & A - MODEL 2006PP2QN21
​(a) Figure 12 shows a section of a house wiring system
(i) Name:
The circuit labeled P The terminals labeled X and Y X Y II Give a reason why R is connected to Y but not to X (ii) Why is the earthing necessary in such a circuit? (b) Determine the cost of using an electric iron rated 1500W, for a total of 30 hours given that the cost of electricity per kWh is Kshs 8. K.C.S.E Physics Q & A - MODEL 2006PP2QN20
​Figure 10 shows a simple electric generator
​(a) (i) Name the parts labeled P and Q
(ii) The e.m.f generated as the coil rotates is represented in the graph in figur Give reasons for the changes in emf as the coil rotates from 00 to 900 and 900to 1800
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