kinetic theory

The energy of an object as it is in motion is defined as

• Kinetic Theory
• Kinetic energy
• Potential energy
• Electric energy

Tags

NGSS.HS-PS3-2

The temperature at which all molecular motion stops is

• -460 ^.C
• -273K
• 0K
• 0^.C

Tags

NGSS.MS-PS1-4

When a cold tire is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because the

• air molecules hit the walls of the tire less frequently
• rubber in the tires reacts with oxygen in the atmosphere
• air molecules speed up and collide with the tire walls more often
• air molecules diffuse rapidly through the walls of the tire.

Tags

NGSS.MS-PS1-4

The random molecular motion of a substance is greatest when the substance is

• condensed
• frozen
• gas
• a liquid

Tags

NGSS.MS-PS1-4

If you place a balloon in a freezer what happens to the size of the balloon?

• Doubles
• increases
• decreases
• stays still

Tags

NGSS.MS-PS1-4

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the instrument called that measures air pressure?

• thermometer
• ruler
• yard stick
• barometer

Force divided by the area it is applied over is 

• mass
• density
• pressure
• volume