ENERGY TRANSFER CIRCUITS HEAT ENERGY TRANS FORMATION SERIES OR PARALLEL

Question Column Materials that allow thermal or electrical energy to easily pass through them are called _______________

Answer Column Conductors

Question Column Conduction is energy transfer because two objects are ______________.

Answer Column Touching

Question Column Materials that do not allow thermal energy to pass through them easily are called _______________.

Answer Column Insulators

Question Column Identify the type of energy transfer that occurs when my feet get burned when I walk across the sandy beach. Explain how the energy is transferred.

Answer Column Conduction Thermal energy transfers from the hot sand to my feet.

Question Column Which of the following items would you predict to be conductors – eraser, spoon, silver earring, popsicle stick, battery.

Answer Column spoon silver earring battery

Question Column Is the circuit below open or closed? How do you know?

Answer Column Open (The electric current stops flowing when the switch is up.)

Question Column A device that can open or close a circuit by lifting the arm is called a…

Answer Column Switch

Question Column How many paths, or loops, of current does a parallel circuit have? a.One b.More than one c.None

Answer Column B More than one

Question Column What happens to the other lights when you turn off a light in a series circuit and why?

Answer Column The other lights turn off. (There is only one path of electric current so the circuit is now open.)

Question Column What happens to the brightness of the bulbs in a series circuit when you add another bulb and why?

Answer Column The bulbs become dimmer. (They share the energy from the battery since there is only one path of current.)

Question Column Define temperature.

Answer Column The measure of the amount of thermal energy in a substance

Question Column What tool do scientists use to measure temperature? a.Barometer b.Anemometer c.Telescope d.Thermometer

Answer Column D Thermometer

Question Column How does thermal energy transfer between hot chocolate and a marshmallow?

Answer Column Thermal energy transfers from the hot chocolate to the cooler marshmallow.

Question Column What should you use to take a hot cookie sheet out of the oven? a.Aluminum foil b.Cloth oven mitts c.Your bare hands

Answer Column B Cloth oven mitts

Question Column Using words and arrows, show the heat energy transfer from hot chocolate to your hand which is holding the cup. _____ (arrow) _____(arrow) _______

Answer Column Hot chocolate cup hand

Question Column Identify the type of energy found in a battery.

Answer Column Chemical

Question Column Identify the type of energy that is produced when electrons are in motion (found in a wire).

Answer Column Electrical energy

Question Column List the energy transformations that take place in the simple circuits that we created in class. (device= light bulb)

Answer Column Chemical energy to electrical energy to thermal energy to light energy.

Question Column Using words and arrows, show the energy transformation that occurs when I turn on my Ipod.

Answer Column Chemical energy electrical energy sound energy

Question Column Using words and arrows, trace the energy transformation in our circuit with the buzzer.

Answer Column Chemical energy electrical energy electromagnetic energy sound energy

Question Column I have only one path for electric current to travel.

Answer Column Series Circuit

Question Column If one light burns out, the other lights will stay lit.

Answer Column Parallel circuit

Question Column When another battery is added, the bulb gets brighter.

Answer Column Series Circuit

Question Column If I plug in my holiday lights, and I notice two do not work, they must be wired in this type of circuit.

Answer Column Parallel Circuit

Question Column Each device has its own path of electric current.

Answer Column Parallel circuit