Surface tension
Quiz by N Raja
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10 questions
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- Q1What causes the phenomenon of surface tension in liquids?Pressure from the surrounding environmentAdhesive forces with the surrounding airGravitational forces acting on the liquidCohesive forces between liquid molecules30s
- Q2Which of the following factors does NOT significantly affect the surface tension of a liquid?Temperature of the liquidThe color of the liquidType of liquidPresence of surfactants30s
- Q3In what way does temperature typically affect the surface tension of a liquid?Surface tension varies randomly with temperatureSurface tension decreases as temperature increasesSurface tension remains constant regardless of temperatureSurface tension increases as temperature increases30s
- Q4What is one common application of surface tension in everyday life?The melting of ice cubesThe ability of small insects, like water striders, to walk on waterThe boiling of water in a kettleThe formation of clouds in the sky30s
- Q5Which of the following substances is known to significantly reduce the surface tension of water?VinegarSoapSaltSugar30s
- Q6What effect does adding salt to water have on its surface tension?It has no effect on surface tensionIt causes surface tension to fluctuateIt decreases the surface tensionIt generally increases the surface tension30s
- Q7Which statement best describes the relationship between surface tension and molecular polarity?There is no relationship between surface tension and molecular polarityNonpolar molecules have higher surface tension than polar moleculesPolar molecules typically exhibit higher surface tension than nonpolar moleculesSurface tension is only affected by the temperature of the liquid30s
- Q8What is the phenomenon where a liquid's surface can support small objects due to surface tension called?HydrophobiaCapillary actionViscositySurface tension30s
- Q9Which of the following correctly describes capillary action?The rise of liquid due to gravitational pullThe ability of a liquid to flow in narrow spaces without the assistance of external forcesThe cohesion between similar liquid molecules onlyThe formation of bubbles in a liquid30s
- Q10Which of the following best explains why some insects can walk on water without sinking?The low density of the insectsThe large size of the insectsThe air trapped under the insect's legsThe high surface tension of water due to cohesive forces30s