CHANGES OF STATE TOPIC-2, L1&2

What is a Solid?

• A state of matter that has definite shape and definite volume

• A state of matter that does not have any definite shape and volume

• A matter has volume but has no definite shape

What is a liquid?

• A State of matter has definite shape or volume

• A state of matter that has no definite shape but no definite volume.

• A state of matter that has no definite shape but has definite volume.

What is gas?

• A state of matter has no definite shape or no volume

• A state of matter has a definite shape but no volume

• A state of matter has definite shape or volume

What is surface tension?

• The result of an upward pull among the molecules of a solid that does not bring the molecules closer

• The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together, causing the surface to act as if it has a thin skin.

What is Viscosity?

• A solid's resistance to flowing

• A liquids resistance to flowing

• A solid and liquid does not have any resistance

What are Vibrations?

• Tom move back and forth slightly

• To move in one direction only

• To move up ward direction only

What is Thermal energy?

• The total Kinetic energy and potential energy of all the particles of an element

• The some of Kinetic energy and potential energy of all the particles of an element

• The total Kinetic energy and some potential energy of all the particles of an element

What is a temperature

• How cold something is the measure of the average Potential energy of the particles in a substance

• How hot or cold something is the measure of the average kinetic energy of the particles in a substance

• How hot something is the measure of the average kinetic energy of the particles in a substance

What is the melting point

• The temperature at which a substance changes from a solid to a liquid, the same as the freezing point, or temperature at which a liquid changes to a solid

• The temperature at which no substance changes from a solid to a liquid, the same as the freezing point, or temperature at which a liquid changes to a gas

What is the freezing point

• The temperature at which a solid melts

• The temperature at which a Liquid freezes

• The temperature at which a Liquid melts