USA test prep Kinetic and Thermal Energy

If you slow the motion of water molecules down, they are more likely to become

• gas

• hotter

• colder

• absorbed

Tags

NGSS.MS-PS1-4

In which state of matter are the particles CLOSEST together?

• gas

• solid

• liquid

What must be added to water in order to change state from liquid to a gas?

• more liquid

• more oxygen atoms

• energy or heat

• more hydrogen atoms

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A scientist observes that the particles of a gas are arranged as shown. If the gas begins to condense into a liquid, which particle arrangement would MOST LIKELY be observed?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

The diagram shows ice being heated on a stove over time. What is the sequence of the states of matter as the ice is being heated?

• Process 1: solid to gas Process 2: gas to liquid

• Process 1: solid to gas and Process 2: liquid to gas

• Process 1: solid to liquid and Process 2: gas to liquid

• Process 1: solid to liquid and Process 2: liquid to gas

Tags

NGSS.MS-PS1-4

to change liquid water into ice cubes you MUST

• cause a chemical change

• increase the temperature

• turn the water into something new

• decrease the temperature

Tags

NGSS.MS-PS1-4

The three different states of matter are liquid, solid, and gas. A solid is something you can hold in your fingers, while a liquid is something you can hold in a cup. Gases are all around you, making up the air we all breathe.

They are all different but liquids and gases have something in common and that is...

• liquids and gas are both less dense than solids

• liquids and gases are both more dense than solids

• liquids and gases both take the shape of their container

• liquids and gases do not take the shape of their container

Tags

NGSS.MS-PS3-4

When a piece of solid candle wax is placed in a pan on the stove and heated slowly, the candle wax will

• explode

• turn into a gas

• burn and disappear

• turn into a liquid

Tags

NGSS.MS-PS1-4

Consider the phase change taking place in the picture. You could use ALL BUT ONE statement to describe what is happening here. That is:

• The space between the particles remains the same

• temperature is increasing

• kinetic energy is increasing

• the attractive force between the particles is decreasing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The picture depicts particles that are in two different phases (liquid and gas) What would likely happen if the temperature of the particles were decreased?

• the average kinetic energy of the particles would decrease, they would conserve some energy and all the particles would likely change to a gas phase

• the average kinetic energy of the particles would decrease, they would slow down and the gaseous particles would change to a liquid state like the other particles

• the average kinetic energy of the particles would increase, they would slow down however and the gaseous particles would change to a liquid state like the other particles

• the average kinetic energy of the particles would increase, they would speed up and the particles in the liquid state would change fly off into a gas state like the other particles

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5