Lesson 2 (MC/ToF)
True or False. You can feel the heat from the coffee because the heat particles are hitting your hand. (Santi)
True
What does Conduction do to Metal Objects (JP)
They transfer heat to the metal object
Geothermal power plants are _______ power plants that tap into steam released from earth. (James)
a. Solar b. Steam c. Wind d. Hydroelectric e. Nuclear
B. Steam
Enumerate 3/9 kinds of powerplants (JP/Rouhan/James)
kung tama, 100 pts
It is when two objects have the same temperature and no heat flows between them. (Lhoyd)
Thermal Equilibrium
Which of the following is a real-world example of a convection current? (James)
a. Touching a hot metal spoon b. Getting a sunburn at the beach c. Warm air rising toward the ceiling d. Ice melting in your hand e. Heat moving through a copper wire
C. Warm air rising toward the ceiling
At absolute zero, molecular motion _____. (Lhoyd)
Stops
_____ can transform 7200 volts into 240-220 (Orlando)
a. Substation b. Transformer c. Generator
B. Transformer
Breaks high voltage from transmission to thousands of volts to house (Christian)
Substation
What system delivers electricity from power plants to homes? (Lhoyd)
The power distribution grid
Convection is the transfer of heat through the movement of ______ or gases. (James)
a. Solids b. Liquids c. Vacuum d. Metals e. Magnets
B. Liquids
What process happens when a coffee looses heat and became room temperature? (Santi/Lhoyd)
Thermal Equilibrium
A transformer drum can transform 7200 volts into 220-240 volts. True or False? (Orlando)
True
Where is electricity produced? (Christian)
Powerplant / Generation
What is thermodynamics (Lhoyd)
Kung tama, 300 pts
What is the efficiency of 25J/50J (Christian)
a. 20% b. 50% c. 100%
B. 50%
What does a transformer do? (Orlando)
Kung tama, 400 pts
What's the least(1) and most(2) efficient power plant? (JP/Rouhan/James)
a. Nuclear and Solar b. Coal and Wind c. Geothermal and Hydroelectric dams
C. Geothermal and Hydroelectric dams
Give atleast 2 appliances that is in the Phase 1 of electricity (Lhoyd)
Kung tama, 400 pts
Enumerate the 2/3 on how conduction happens. (JP)
The heat moves through particles of matter
The particles vibrate and pass energy to nearby particles
Heat moves from hot to cold
_____ is a method of heat transfer that deos not rely upon any contact between the heat sourceand the heated object. (Ja/O/JP)
a. Convection b. Radiation c. Conduction
B. Radiation
What can you see when the coffe is hot (Santi: Micro Vision)
Explain
kung tama, 500 pts
Sorry no 500 question
Pick another one
One of the power plants mentioned in my part was used from a volcano (James)
Geothermal Power Plants
Give me an example of conduction and explain how the conduction process work (JP)
kung tama, 500 pts