New Study Guide - Heat and Matter, Changes in Energy Test

What does the total thermal energy of a system depend on?

• Its color and shape

• The number of atoms, temperature, and conductivity

• The size of the container

• The type of material only

What is heat used to describe?

• The color of an object

• The transfer of thermal energy from one object to another

• The weight of an object

• The size of an object

What happens to water molecules when their motion slows down?

• They become warmer

• They become colder and have less kinetic energy

• They change color

• They expand

Which state of matter has a definite shape and volume?

• Liquid

• Gas

• Solid

• Plasma

Which state of matter is compressible and has the most kinetic energy?

• Solid

• Liquid

• Gas

• Plasma

What happens to water when it is placed in the freezer?

• It turns into gas

• It turns into ice

• It turns into steam

• It turns into rain

Which of the following is an example of a liquid turning into a solid?

• Ice cream melting

• Water boiling

• Rain turning into snow

• Water evaporating

What happens to molecules when kinetic energy decreases?

• They move further apart

• They stay the same

• They get closer together

• They disappear

What is the effect of increasing temperature on kinetic energy?

• It decreases kinetic energy

• It has no effect

• It increases kinetic energy

• It stops kinetic energy

The more heat an individual molecule has...

• it will move the same

• the slower it will move (less kinetic energy)

• the faster it will move (more kinetic energy) 

  
  

• it won't move at all