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igcse physics notesprinted 77 · PDF 77
124 pagesrevision 46936
printed 77 · PDF 77
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77
P2 :
1. Which of the following is a characteristic of particles in a solid?
A) Particles move freely and quickly
B) Particles are arranged randomly
C) Particles vibrate in fixed positions
D) Particles are far apart from each other
2. When a liquid evaporates, what happens to its particles?
A) They move closer together
B) They gain energy and move faster
C) They lose energy and slow down
D) They form a fixed pattern
3. Which of the following changes occurs when a solid turns into a liquid?
A) The particles move closer together
B) The intermolecular forces become stronger
C) The particles gain energy and slide past each other
D) The particles move very far apart and become randomly arranged
4. In a gas, which factor directly affects the pressure it exerts on the walls of its
container?
A) The size of the container only
B) The shape of the container only
C) The speed and frequency of particle collisions
D) The color of the gas particles
5. A balloon is left in a warm room, causing it to expand. What happens to the pressure
inside the balloon as it expands?
A) It increases because the particles move closer together
B) It decreases because there is less space for collisions
C) It remains constant due to constant particle speed
D) It decreases because particles have more space to spread out
6. What will happen to the volume of a fixed mass of gas if both its temperature and
pressure are increased?
A) It will increase
B) It will decrease