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GR 12 Activity
1.1. Two blocks of mass M kg and 2,5 kg respectively are connected by a light, inextensible string. The string runs over a light, frictionless pulley, as shown in the diagram below. The blocks are … Source: GR 12 Activity
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Doppler effect
The data below was obtained during an investigation into the relationship between the different velocities of a moving sound source and the frequencies detected by a stationary listener for each velocity. The effect of wind was ignored in this investigation. 1.Write down the dependent variable for this investigation.(1) 2.State the Doppler effect in words.…
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Waves,Sound & light
QUESTION 1 A diamond glitters in light because of its high refraction index of 2,42 and the small critical angle of the diamond-air boundary. 1. Calculate the critical angle of a diamond-air interface. Take the refraction index of air as 1. (4) The angle of incidence of light at the diamond-air interface is increased to…
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Work energy & power questions
Two stationary steel balls, A and B, are suspended next to each other by massless, inelastic strings as shown in Diagram 1 below. Ball A of mass 0,2 kg is displaced through a vertical distance of 0,2 m, as shown in Diagram 2 above. When ball A is released, it collides elastically and head-on with…
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GR 12 Activity
1.1. Two blocks of mass M kg and 2,5 kg respectively are connected by a light, inextensible string. The string runs over a light, frictionless pulley, as shown in the diagram below. The blocks are stationary. 1. State Newton’s THIRD law in words. (2) 2. Calculate the tension in the string. (3) The coefficient of…
Physical Sciences Break 1.0 