1. When a
turbine rotates to produce electricity, what energy
transformation takes place?
a Thermal - mechanical
b. Electrical clectromagnetic
e. Chemical electrical
d. Mechanical electrical
2. The Energy Transformation of drinking Gatorade and exercising would
be_____'''
a. Chemical Energy --Mechanical Energy (plus heat)
b. Chemical Energy --> Mechanical Energy (no heat)
c. Kinetic Energy - Thermal Energy (no heat)
d. Potential Energy to Chemical Energy (plus heat)
3. What kind of heat transfer is occurring when the sun warms the sand?
a. Conduction
b. Radiation
c. Convection
d. Density
4. Which of the following is an example of convection?
a. A hair dryer is drying up your hair.
b. When the AC or heater changes the temperature.
c. When a car engine turns hot after being turned on.
d. boiling spaghetti noodles in water
5. The rubber or plastic on electrical cords is an example of
a. Insulators
c. conductors
b. Radiators
d. convectors
6. Which of the following energy transformation occur when a lamp that is plugged into a wall socket is functioning correctly?
a. chemical to light
b. electrical to light
c. electrical to chemical
d. chemical to electrical
7. What energy transformation take place when a battery-operated radio is in use?
a. electrical to chemical to light
b. chemical to electrical to sound
c. sound to chemical to mechanical
d. light to electrical to thermal
8. What heat transfer happens when you burn your finger by touching a fire?
a.radiation. c. conduction
b.convection d.I don't know!
9. Hot air balloons rise because the heated air is less dense than cold air,
so as the warm rises as the molecules spread out. The cold air is pushed
downward, where it is also heated and rises. This swirling movement of
air is called
a. convection
c. radiation
b. insolation
d. conduction
10. Walking on the warm sand with your bare feet demonstrates this type
of heat transfer.
c. convection
a. conduction
b. radiation
d. insolation
Please help me to answer this question
Share
Answer:
1.D
2.A
3.B
4.C
5.D
6.B
7.B
8.C
9.A
10.A
Explanation:
Trust me!
#CARRY_ON_LEARNING