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(i) Centripetal force,
- Weight
(ii) - Centripetal force increases
- Weight of the body remains constant
(iii) - vehicle speed governor
- Centrifuges
- Satellites.
johnmulu answered the question on June 2, 2017 at 12:07
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Figure 7 shows an object at the end of a light spring balance connected to a peg using a string. The object is moving in a circular path on a smooth horizontal table with a constant speed.
(i) State the purpose of banking roads at bends.
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Date posted: June 2, 2017. Answers (1)
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Date posted: June 2, 2017. Answers (1)
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Date posted: June 2, 2017. Answers (1)
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d on the table before placing the masses. Explain the effect of this on the frequency at which each mass slides off.
Date posted: June 2, 2017. Answers (1)
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State two factors that determine whether a particular mass slides off the table or not.
Date posted: June 2, 2017. Answers (1)
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Date posted: June 2, 2017. Answers (1)
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Determine:
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Date posted: June 2, 2017. Answers (1)
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Date posted: June 2, 2017. Answers (1)
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cFigure 16, shows a graph of magnification against object distance, for an object placed in front of a lens of focal length 20 cm.
Using the graph;
(i) State the effect on the size of the image when the object distance is increased from 25 cm.
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Date posted: June 2, 2017. Answers (1)
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The figure 4 shows the diagram of set-up to investigate the variation of centripetal force with the radius, r, of the circle in which a body rotates.
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Date posted: June 2, 2017. Answers (1)
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Date posted: May 29, 2017. Answers (1)
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Date posted: May 29, 2017. Answers (1)
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Figure 8 shows an experimental set-up consisting of a mounted lens L, a screen, S, a meter rule and a candle.
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Date posted: May 29, 2017. Answers (1)
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Date posted: May 29, 2017. Answers (1)
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The pressure acting on a gas in a cylinder was changed steadily while the temperature of the gas was maintained constant. The value of volume V of the gas was measured for various values of pressure. The graph in Figure 11 shows the relation between the pressure P, and the reciprocal of volume, $\frac{1}{V}$
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Date posted: May 29, 2017. Answers (1)
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Figure 11 shows an insulated cylinder fitted with a pressure gauge, a heating coil and a frictionless piston of cross-sectional area 100 cm2.
While the piston is at position O, the pressure of the enclosed gas is 10 Ncm-2 at a temperature of 27oC. when a 10 kg mass is placed on the piston, it comes to rest at position A without the temperature of the gas.
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Date posted: May 29, 2017. Answers (1)
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The tube is now held in a vertical position with the open end facing upwards as shown in figure 8.
Determine:
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(ii) The length (l) of the enclosed air column.
Date posted: May 29, 2017. Answers (1)
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Figure 7 shows a horizontal tube containing air trapped by a mercury thread of length 24 cm. The length of the enclosed air column is 15 cm, The atmospheric pressure is 76 cmHg.
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Date posted: May 29, 2017. Answers (1)