Melting and Solidification Quiz Questions and Answers PDF - 69

MCQ 341: Solid is turned to liquid because

1. after the intermolecular bonds are broken down the particles are now free to move
2. the particles collide with each other
3. kinetic energy increases the rate of thermal energy
4. the particles start vibrating more vigorously

MCQ 342: Objects that produce their own light are called

1. Luminous objects
2. Non-luminous objects
3. Transparent objects
4. Opaque objects

MCQ 343: A clinical thermometer has l₁₀₀ 23 cm and l₀ is 5 cm, if the l_θ is 14 cm the temperature of the thermometer would be

1. 50 °C
2. 60 °C
3. 75 °C
4. 10 °C

MCQ 344: Given that both liquid A and liquid B exert the same amount of pressure, what would be the height of column of liquid A if the density of liquid A is twice the density of liquid B and the height of column of liquid B is 10 cm?

1. 5 cm
2. 10 cm
3. 20 cm
4. None of the above

MCQ 345: If the temperature of a metal object is increased the electrons would

1. loss kinetic energy
2. gain kinetic energy
3. won't loss or gain kinetic energy
4. may loss or may gain kinetic energy