Matter Class 8

Maximum kinetic energy is possessed by molecules of which of the following

• liquids

• solids

• gases

• all of the above

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

_{Matter has to main properties mass and volume}

• True
• False

Tags

NGSS.MS-PS1-5

The phenomenon of Difussion occurs in which of the following molecules:

• liquids

• gases

• both solids and gases

• both liquids and gases

• in all the three states of matter- solids, liquids and gases.

Which of the statements hold true for the process of boiling?

• It takes place at room temperature.

• It takes place only at a constant temperature.

• It is a rapid process.

• It is a slow process

Tags

NGSS.MS-PS1-4

The process of change in state of substance directly to solid from gas is called:

• sublimation

• condensation

• deposition

• none of the above

When iodine crystals are heated in a petri dish, a change in state takes place. Which state does it get converted to and what is this process called?

• liquid, fusion

• gas, sublimation

• solid, boiling

• gas, evaporation

Tags

NGSS.MS-PS1-4

The molecules of a gas are held together by a ______ force of attraction.

• strong

• very strong

• weak

• very weak

Which of the following is a part of the water cycle?

• evaporation
• condensation
• precipitation
• all of the above

Tags

NGSS.MS-ESS2-4

Which change can occur when you add heat energy to water?

• The water can change from a liquid to a solid

• The water can change from a gas to a liquid

• The water can change from a liquid to a gas

• The water can change from a solid to a liquid

Tags

NGSS.MS-PS1-4

Adding HEAT to matter causes its particles to:

• move faster and farther apart
• Move slower and farther apart
• Move faster and closer together
• Move slower and closer together

Tags

NGSS.MS-PS1-4