7th Science Review

What happens to liquid molecules when they increase their speed?

• Liquid changes to ice

• Liquids temperature rises

• Temperature of the liquid decreases

• Molecules will gain mass

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

During conduction, which type of energy trasfers between molecules of touching substances?

• light energy

• kinetic energy

• potential energy

• chemical energy

Tags

NGSS.MS-PS1-4

Which state of matter are the molecules the closest?

• solid

• liquid

• gas

• cold liquid

Mary filled an ice cube tray with water and placed it in the freezer. As the water in the tray turned to ice, it lost energy.

• True

• False

Tags

NGSS.MS-PS1-4

Air pressure is the force that air puts on an area.

• True

• False

Tags

NGSS.MS-ESS2-5

Conduction is the transfer of ___ energy within an object or between objects touching each other due to the particles colliding.

• chemical

• heat

• mechanical

• electrical

Tags

NGSS.MS-PS3-3

Thermal energy in transfer from one body of matter to another is ____

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

During energy transformations, energy is never ________.

Tags

NGSS.MS-PS1-5

If the particles in an object begin to move more quickly, their average kinetic energy ____ and the object's temperature ___.

• increases, decreases

• increases, rises

• decreases, decreases

• decreases, rises

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When the temperature of a substance increases, the size of the substance also increases.

• Thermal expansion

• Thermal energy

• Thermal conduction

• Thermal magnetism

Tags

NGSS.MS-PS1-4