Q.1.
What is the energy conversion when you plug in a stereo and listen to music?
-
33%
electrical to mechanical
-
0%
chemical to heat
-
0%
electrical to light
-
67%
mechanical to sound
Q.2.
What is the energy conversion when you plug in a fan?
-
0%
light to mechanical (motion)
-
0%
electrical to heat
-
0%
mechanical (motion) to light
-
100%
electrical to mechanical (motion)
Q.3.
What is the energy conversion when water moves over a dam to power a city's energy grid?
-
0%
electrical to light
-
100%
mechanical (motion) to electrical
-
0%
solar (light) to electrical
-
0%
mechanical (motion) to light
Q.4.
A device that converts Electrical Energy and into Thermal Energy.
-
33%
A Battery
-
33%
A Hair Dryer
-
33%
A Bicycle
-
0%
Your Stomach
Q.5.
Which of the following conversions is illustrated with a solar powered car?
-
0%
radiant (light) to electrical
-
50%
radiant (light) to mechanical (motion)
-
0%
mechanical to radiant (light)
-
50%
electrical to mechanical (motion)
Q.6.
What is the energy conversion when a wind turbine turns to provide energy to a power grid?
-
0%
electrical to electrical
-
0%
electrical to mechanical (motion)
-
100%
mechanical (motion) to electrical
-
0%
solar (light) to heat
Q.7.
An example of electrical energy transforming to thermal energy is
-
0%
a fire burning.
-
100%
using a toaster.
-
0%
burning coal.
-
0%
lighting a candle.
Q.8.
Energy of motion is also called ______________ energy.
-
100%
Kinetic
-
0%
Chemical
-
0%
Thermal
-
0%
Electrical
Q.9.
The object shown is responsible for which conversion
-
0%
electrical → light only
-
0%
chemical → heat only
-
33%
chemical → heat & light
-
67%
electrical → heat & light