thermal energy

There are two answers for this.

Particles in a _________ take the shape of the container.

• solid

• liquid

• gas

If this drink is sitting outside on a hot, sunny day, name two reason why the drink won't stay cold.

• radiation - from the sun is heating the glass

• conduction - the table beneath the glass is heating

• convection - the air is moving in a circle pattern around

• conduction - the straw is heating up

Where does most water evaporate from?

• lakes

• oceans

• rivers

The relationship between the temperature and the total energy of a system depends on all of the following EXCEPT . . .

• the color of matter present

• the type of matter present

• the amount of matter present

• the state of matter present

• ALL of these are correct

Look at the diagram . Why there are gaps between metal connectors on bridge?

• To allow water flow through it rainy season

• To allow air flow during thunderstorm

• To allow the bridge to expand when the temperature of the surrounding increases

After holding an ice pack against his skin for 20 minutes, the man notices the ice pack is melting. Why is this happening?

• radiation - the ice pack is now all melted

• conduction - body heat transferred to the cold ice pack

• convection - the water in the ice pack flowed in a circle pattern

• conduction - heat came from the bigger object to the smaller

As particles are exposed to warmer temperatures they __________

• speed up

• slow down

• stay the same

• vibrate at fixed positions

a balanced state in which a system is stable, such as when two or more samples are at the same temperature

• water heater

• equilibrium

• system

• stability

Four metal cubes, each at a different starting temperature, are placed in contact with each other.

Which of the following describes the most likely flow of thermal energy in this situation?

• #4 to #2

• #1 to #2

• #3 - #4

• #1 to #3

• None of these are the correct answer.

heating unit that stores and warms water

• transfer

• thermal enegry

• water heater

• pasteurize