Changes of State - Heat, Temperature, and Conduction

The phase of matter that has definite shape and definite volume is:

• solid.
• liquid.
• gas.
• plasma.

In nature, heat always flows from a:

• cold object to a warm object.
• small object to a big object.
• warm object to a cold object.
• large object to a small object.

Tags

NGSS.HS-PS3-4

As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.

• increases
• decreases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The measure of average kinetic energy of all the particles within an object is called ____________. 

• temperature
• conduction
• radiation
• heat 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which state of matter are molecules moving the slowest?

• solid
• liquid
• gas
• all of the above

Tags

NGSS.MS-PS1-4

The physical forms of matter which include solids, liquids, and gases is called?

• States of matter

• Change in state

• State of change

• None of these

Which direction is heat flowing in the picture?

• from the hand to the ice
• from the ice to the hand
• heat is not being transferred
• there is no way to tell

Tags

NGSS.MS-PS1-4

While on vacation, Carine rides in a hot-air balloon. To make the balloon rise, the pilot turns on a flame to warm the air inside the balloon. How does the air change?

• The temperature of the air decreases

• The air particles move closer together

• The motion of the air particles increases

• The air changes to a different state of matter

These molecules represent which state of matter?

• Solid

• Liquid

• Gas

Describe the molecules in a gas.

• Tightly compact, vibrating

• Close together, slightly moving

• Far apart, moving fast