AQA Alevel DT Unit 2.2 Polymers

What type of structure do thermoplastics have?

• Fixed structure

• No fixed structure or pattern

• Crystalline structure

• Layered structure

Which of the following is NOT true about thermoplastics?

• They have long chains of molecules

• They have a fixed structure

• They are soft and flexible

• They are the most commonly used plastic

What does the term "thermoplastics" refer to?

• Plastics that cannot be heated.

• Plastics that can be formed using heat and reshaped many times.

• Plastics that are biodegradable.

• Plastics that are used in thermal insulation.

Which of the following is true about LDPE's resistance to chemicals?

• It has poor resistance to chemicals

• It has excellent resistance to chemicals

• It has moderate resistance to chemicals

• It has no resistance to chemicals

What does HDPE stand for?

• High-density polyethylene

• High-density polypropylene

• High-density polystyrene

• High-density polyvinyl chloride

Which of the following is NOT a common use of HDPE?

• Bottles and drums containing chemicals

• Rigid plastic toys

• Storage boxes

• Flexible plastic bags

Which of the following is a reason for using Polypropylene (PP) in hinged lids?

• It is brittle and breaks easily

• It is resistant to chemicals and solvents

• It is heavy and dense

• It is opaque and colorless

What does HIPS stand for?

• High Impact Polyethylene

• High Impact Polystyrene

• High Impact Polypropylene

• High Impact Polycarbonate

HIPS is commonly used for which type of cups?

• Glass cups

• Single use coffee cups

• Metal cups

• Ceramic cups

Which of the following is NOT a property of HIPS?

• High impact strength

• Food safe

• Glossy appearance

• Biodegradable