Master Class Digital Learning Academy

 Polymers in Chemistry   1. What is a polymer? a. A single molecule compound b. A substance made of repeating structural units c. A metalloid element d. A compound without carbon atoms    2. How are polymers formed?    a. Dehydration synthesis    b. Reduction reactions    c. Hydrolysis    d. Combustion reactions 3. Which of the following is an example of a natural polymer?    a. Polyethylene    b. Polypropylene     c. Starch    d. PVC 4. What type of polymerization process involves the elimination of a small molecule like water?    a. Addition polymerization    b. Condensation polymerization    c. Cross-linking polymerization    d. Radical polymerization 5. What are the primary components of polymer chains?    a. Atoms    b. Monomers    c. Isomers    d. Dimers 6. Which of the following is NOT a natural polym...

 Electrostatics in Physics   1. What happens when two objects with the same type of charge are brought close together? a) They attract each other   b) They repel each other    c) Their charges neutralize   d) Nothing happens   2. What is the SI unit of electric charge? a) Coulomb    b) Ampere   c) Volt   d) Ohm   3. When a charged object is grounded, it: a) Gains more charge   b) Loses some or all of its charge   c) Maintains its charge   d) Changes color   4. Which law describes the force between two charged objects? a) Newton's Law of Motion   b) Coulomb's Law   c) Ohm's Law   d) Boyle's Law   5. Which of the following materials is a good conductor of electricity? a) Rubber   b) Wood   c) Copper    d) Glass   6. What type of charge does a proton carry? a) Positive    ...