WorksheetsUnderstanding Surface Tension
Total questions: 10
Worksheet time: 5mins
What is surface tension?
Surface tension is the temperature at which a liquid boils.
Surface tension is the weight of a liquid acting on its surface.
Surface tension is the pressure exerted by a gas above a liquid.
Surface tension is the force that causes the surface of a liquid to behave like a stretched elastic membrane.
How does surface tension affect water droplets?
Surface tension causes water to evaporate quickly and lose its shape.
Surface tension prevents water from forming any shape on surfaces.
Surface tension causes water droplets to form a spherical shape and allows them to maintain their integrity on surfaces.
Surface tension allows water to absorb dirt and impurities easily.
What causes surface tension in liquids?
Cohesive forces between liquid molecules.
Pressure applied to the liquid surface.
Temperature variations in the liquid.
Presence of impurities in the liquid.
Can you name a liquid with high surface tension?
Oil
Alcohol
Water
Mercury
How does temperature affect surface tension?
Temperature has no effect on surface tension.
Higher temperatures increase surface tension significantly.
Surface tension is constant regardless of temperature changes.
Temperature inversely affects surface tension; higher temperatures decrease surface tension, while lower temperatures increase it.
What is the role of surfactants in surface tension?
Surfactants lower surface tension by disrupting cohesive forces between liquid molecules.
Surfactants stabilize surface tension by promoting cohesive forces.
Surfactants have no effect on surface tension in liquids.
Surfactants increase surface tension by enhancing molecular attraction.
How does surface tension help insects walk on water?
Surface tension helps insects glide on water by creating a slippery layer.
Surface tension allows insects to walk on water by creating a supportive 'skin' on the water's surface.
Surface tension prevents insects from sinking by trapping air bubbles.
Surface tension allows insects to swim by reducing water resistance.
What is the relationship between molecular cohesion and surface tension?
Surface tension increases molecular cohesion.
Molecular cohesion reduces surface tension.
Surface tension is unrelated to molecular cohesion.
Molecular cohesion is the cause of surface tension.
How can you demonstrate surface tension with a paperclip?
You can demonstrate surface tension by placing a paperclip on a solid surface.
You can illustrate surface tension by using a paperclip in a glass of oil.
You can show surface tension by dropping a paperclip into boiling water.
You can demonstrate surface tension by placing a paperclip on the surface of water, where it will float due to the water's surface tension.
Why is surface tension important in biological systems?
Surface tension is irrelevant to cellular processes.
Surface tension only affects non-biological systems.
Surface tension hinders nutrient absorption in cells.
Surface tension is important in biological systems for maintaining cellular structure, fluid movement, and gas exchange.
