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SCIENCE - WEEK 2 MULTIPLE CHOICE: Read the questions carefully. Encircle the letter of the correct answer 1. What could happen if copper wire in a flashlight will be replaced with rubber bands in a circuit? A. The flashlight bulb will light up a little B. The flashlight bulb will light up the same way as copper wires C. The flashlight bulb will not light up. D. The flashlight bulb will light up very brightly. 2. Which of the following materials are good conductors of heat? A ceramic cups B. nail, safety pin C. Glass, Picher of water D. tiles, blanket 3. These refers to any material or item that provides a path for energy to flow. How are these items called? A. Atom C. electric B. conductor D. molecules 4. To choose the best materials for use in electrical applications, some engineers specialize in understanding the conducting and insulating characteristics of materials. To carry electricity through buildings, electrical engineers use copper wire. Why do you think so? L Copper wire is made up of metal IL Copper wire is a good conductor of heat and electricity III Copper wire is a non-metallic material 1 to 5
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