1. What energy transformation happens when you cook food in a nice cooker
a. Heat to electrical energy. c. Electrical to sound energy.
b. Electrical to heat energy. d. Electrical to chemical energy.

2. Which of the following household devices that can be transformed into heat energy
a. Garbage bin
b. Weighing scale
c. rice cooker
d. Table and chair

3. Which of the following does NOT belong to the group?
a. Fiat iron
b. Hair dryer
c. oven toaster
d. Switch

4. Which of the following is a by-product of energy transformation?
a. Electricity
b. Heat
c. light
d. Sound

5. When is a form of energy useful to use? a. When it is saved or conserved.
c. When it is released to the plants and animals
b. When it is stored in sound energy. d. When it is transformed into another energy​

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