ENERGETIC CONNECTIONS

Which is not associated with the sun and energy?

• sound

• nuclear reaction

• heat

• light

Objects that are ________ are considered to have kinetic energy.

• standing still

• actively doing something

• changing states of matter

• for beautifying a person

Which is an example of potential energy?

• roller coaster speeding down a hill

• pulled back string on an archer's bow

• releasing the strings on a guitar

• electric current lighting a light bulb

How is heat energy considered a form of kinetic energy?

• motion of molecules

• chemical energy transfer

• increase in temperature

• thermal current

When a hot burner touches a pan, energy is transferred through _____

• radiation

• electrical energy

• conduction

• solar heating

Sitting around a fire but stepping back, you still feel the heat of the fire. How does the fire warm your face?

• light energy from the fire

• conduction

• chemical reactions in the fire

• radiation

You pour a good cup of hot Joe (coffee) but it becomes cold. What happened to the heat energy?

• heat energy transferred to the cooler air?

• the energy ran out

• cold air gave the coffee it's energy

• you didn't drink it fast enough (wrong)

Which example best represents heat transfer through convection?

• boiling water on an electric stove

• lighting a bulb using a battery and wires

• getting a sun tan

• inflating a hot air balloon

Choose the BEST diagram to show a solid.

• 
• 
• 
• 

What happens to to a solid to become a liquid?

• gains energy

• loses energy

• eats too much

• fell in love