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Physics Conventional paper 3 (80 marks)
Problem 1
The diagram beneath shows a pendulum greg in five phases of its vacillation path. The pendulum joe is at relax in position three or more.
10o
m
John gives the pendulum bob to position 1 and releases the bob. The size of the pendulum string d is 30. 0 centimeter.
Take the gravitational field power to be being unfaithful. 8 m s-2.
(a)
Calculate the period of the pendulum oscillation.
(b)
The vertical height shift of the pendulum bob among positions 1 to 3 is definitely 5 cm. Determine the utmost velocity achieved by the pendulum bob.
(c)
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The pendulum bob finishes one oscillation and earnings to the initial location. Explain how come the average speed of the pendulum bob can be zero just for this oscillation.
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Question two
A solid dice of area 3 cm has a thickness of almost eight. 0 g cm-3.
The solid cube is placed over a desk.
Take the gravitational acceleration being 9. 8 m s-2.
(a)
Determine the pressure that the sound cube exerts on the table.
(b)
Determine the pressure which the table exerts on the stable cube. Describe how you came to your answer.
Physics Supplementary 4 IGCSE
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Query 3
A toy car of pounds 4N comes with a power of 6. zero W.
The toy car travels an aligned line range of 3m in five seconds from its point of origin To. (a)
Compute the effectiveness of the plaything car.
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(b)
Make clear why the toy car could not have got possibly covered the 3m distance in 2 secs.
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(c)
The gadget car goes through deceleration.
Sketch the displacement-time graph of toy car for time t=0 to t=10.
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Question four
List 3 factors that may increase the rate of evaporation of water.
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Issue 5
Define the specific warmth capacity of a substance.
[2]
Hence, explain an test to gauge the specific warmth capacity of a substance.
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Question six
Cubes of ice (-5oC) were placed in a beaker. The beaker of ice was in that case heated utilizing a Bunsen burner. The ice changed into water through Process By and eventually boiled off because water fumes (105oC). (a)
State the 2 main procedures that caused the copy of heat energy.
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(b)
Identify method X.
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(c)
Determine the valuable heat of vaporisation of a substance.
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(d)
Design a chart of temperatures against coming back the compound in the beaker.
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Issue 7
(a)
Distinguish between a transverse wave and a longitudinal say.
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(b)
Light is definitely an example of a transverse trend. State an example of a longitudinal wave.
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(c)
Reddish colored light provides a wavelength of 600 nm. Calculate the frequency of red light. State the value of any frequent that you used in your measurements.
(d)
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State virtually any two properties of a transverse wave.
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Question eight
Explain the use of Snell's Regulation in the framework of the optical fibres. Physics Secondary 5 IGCSE
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Problem 9
A subject is placed 10 cm away from the focal contact lens.
The central lens includes a focal duration of 10 centimeter.
(a)
Express three characteristics of the graphic formed.
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(b)
Sketch a ray diagram just for this situation.
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Question 10
White mild enters a glass prism. The light light divides into a range of colours.
(a)
Explain why the spectrum is only found after entering the glass prism.
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(b)
Within the diagram previously mentioned, label the red ray of light 3rd there’s r, and the purple ray of light V.
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Question eleven
Some digital circuits use logic gates. All circuits experience strength loss by heating. (a)
The power reduction by warming is the item of the level of resistance R and the square of current movement I: P = I2R
From the manifestation above, obtain that energy lost At the = My spouse and i V capital t, where Versus is the volt quality of the circuit and to is the time taken.
(b)
[2]
Create a fact table to illustrate the function of the NAND gate.
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Issue 12
(a)
Define an isotope.
(b)
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Uranium-238 (U) provides 146...