can travel from a wall socket through the plug, and into an appliance
osulaters keep us safe from electricity
Posttest
Direction: Read the questions carefully. Choose the letter of the correct answer then write them
on page 10 of this module.
1. Which of the following materials is a good conductor of heat and electricity?
A aluminum casserole C. plastic tray
B. pot holder
D. wooden spoon
2. Why are electrical wires usually made of copper?
A It is shiny
C. It is not magnetic.
Bit conducts electricity. D. It is cheap
3. What is the main reason why aluminum is used as a material in making cooking pans?
A. tis a good conductor of heat.
B. Ris a good conductor of electricity.
C. It has a very high density
D. F is a strong material
4. Why are electrical wirings usually covered with a layer of plastic?
A. To make it look pretty. C. To help electricity flow along the wire.
B. To make it strong
D. To make it safe.
5. The following are characteristics of materials that are good conductors of heat and
electricity EXCEPT one. Choose the letter only.
A. Thermal conductivity
B. Porosity
C. Malleability
D. Ductility
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Answer:
sasagutan ko po Sana Kaso pag Mali irereport,Hindi Naman po lahat Ng Tao Tama lahat Ng sagot basta may Tama okay na Yun,basta ang importante may Tama Yung sagot kahit 3 Mali,magtiwala kalang sa diyos pati SA sarili mo (: