Physical and Chemical Changes Multiple Choice Questions and Answers 33 PDF Download

Learn physical and chemical changes multiple choice questions, grade 7 science online test 33 for elementary school degree online courses, distance learning for exam prep. Practice polyethene multiple choice questions (MCQs), physical and chemical changes quiz questions and answers for science class for grade 7 science word problems with answers.

Study elementary school science multiple choice questions (MCQs): as compared to low density polythene, high density polythene can withstand, for free online courses with choices low pressures, high temperatures, high pressures, and low temperatures, polyethene quiz for online distance learning for private schools, public schools and virtual school students. Free science study guide for online learning polyethene quiz questions to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Worksheets 33 Quiz PDF Download

MCQ: As compared to low density polythene, high density polythene can withstand

  1. high temperatures
  2. low pressures
  3. high pressures
  4. low temperatures

A

MCQ: Particles of gases are

  1. packed tightly
  2. packed closely
  3. small as compared to that of solids and liquids
  4. far apart

D

MCQ: Color of 'nitrogen' gas is

  1. brown
  2. red
  3. green
  4. purple

A

MCQ: After sometime particles of solids start to move far apart, when

  1. kinetic energy is greater than thermal energy
  2. kinetic energy is greater than force of attraction
  3. potential energy is greater than kinetic energy
  4. potential energy is greater than thermal energy

B

MCQ: Chemical changes are also known as

  1. physical reactions
  2. chemical reactions
  3. biological reactions
  4. prominent reactions

B