Liquids are able to travel up narrow tubes or threads because of capillary action. This property causes part of the surface of a liquid to elevate above the rest of the surface when in contact with a solid.
B. Capillarity. Capillarity is the ability of a liquid to flow in narrow spaces without the assistance of external forces, such as gravity. This property explains why oil moves upward in a wick against the force of gravity.
Buoyancy.
The upward force exerted by a liquid or gas on an object immersed in it is called buoyant force. This force is a result of the pressure difference between the top and bottom of the object, and it opposes the weight of the object, causing it to float or rise.
The water didn't go upward from the roots to the plants. It is the roots that absorbed it upward but in a limited number because the plants have cell wall and they have control of the water that was processed in their system.
Gas produced during reaction will produce bubbles due to the property of surface tension of the liquid. Air or gas is less denser than the liquid in which it is produced. Also due to Archimedes principle, the weight of the liquid displaced by the air or gas bubble will be more than that of bubble itself. So upward buoyant force is heavy which pushes the bubbles to the top of the test tube.
capillarity
capillarity
The capillary effect
Due to capillarity, oil flows upward in the lantern. The attraction of liquid molecules in the oil between each other and with the wick is known as capillarity.
density
Oil flows up through a wick through capillary action. This property causes the surface of a liquid to rise above the rest of it when in contact with a solid. Essentially, it pulls itself up to a certain height.
B. Capillarity. Capillarity is the ability of a liquid to flow in narrow spaces without the assistance of external forces, such as gravity. This property explains why oil moves upward in a wick against the force of gravity.
Buoyancy is the ability of an object to float in a liquid, such as water. This is due to the upward force exerted by the liquid on the object, known as the buoyant force, which counteracts the object's weight and allows it to float.
A sealed bottle partially filled with a liquid can float because the weight of the liquid inside the bottle is less than the weight of the liquid it displaces. This creates an upward buoyant force that allows the bottle to float.
Buoyancy.
Buoyancy.
The Buoyant Force