1 What is the process of changing from a solid to a liquid called? A Melting B Freezing C Vaporization D Condensation
2 What is the process of gas changing directly to a liquid called? A Evaporation B Condensation C Sublimation D Deposition
3 What is the process of liquid changing to a solid called? A Melting B Freezing C Evaporation D Condensation
4 Which of the following is a characteristic of gases? A They have a fixed volume B They expand to fill their container C They cannot be compressed D They have high viscosity
5 Which of the following is a result of the kinetic energy of particles? A Temperature B Mass C Volume D Density
6 What is the name of the temperature at which a liquid freezes? A Boiling point B Freezing point C Melting point D Condensation point
7 What is the arrangement of particles in a gas? A Tightly packed with regular pattern B Tightly packed but random C Loosely packed with random arrangement D Very far apart with random arrangement
8 What is the force of attraction between particles in a liquid? A Very strong B Moderate C Very weak D No force
10 What is the force of attraction between particles in a gas? A Very strong B Moderate C Very weak D No force
11 Which of the following properties is true for gases? A They have high density B They are incompressible C They have low density and are compressible D They have a fixed shape
13 In which state of matter are particles packed closely together in an orderly arrangement? A Solid B Liquid C Gas D Plasma
14 What is the process of changing directly from a solid to a gas called? A Sublimation B Deposition C Melting D Evaporation
16 What is the movement of particles in a gas? A Particles vibrate around fixed positions B Particles slide past each other C Particles move freely and randomly D Particles are packed tightly
17 What is diffusion? A The movement of particles from high concentration to low concentration B The movement of particles from low concentration to high concentration C The settling of particles D The expansion of matter
18 In which state of matter is diffusion fastest? A Solid B Liquid C Gas D It is the same in all states
19 What is the movement of particles in a liquid? A Particles vibrate around fixed positions B Particles slide past each other C Particles move rapidly in all directions D Particles are stationary
20 What is the process of changing directly from a gas to a solid called? A Sublimation B Deposition C Condensation D Freezing
22 Which of the following is NOT a physical change? A Melting of ice B Boiling of water C Rusting of iron D Dissolving sugar in water