CIE iGCSE Co-Ordinated Science P2.1.2 Particle model Exam Style Questions Paper 1
Question
The diagram shows the change in the arrangement of the atoms in a substance that is changing
What is the change of state?
A boiling
B condensation
C melting
D solidificatio
▶️Answer/Explanation
Ans 😀
Question
Which statement about gas particles is not correct?
A Increasing the temperature of a gas makes the gas particles move more slowly.
B The gas particles are in constant random motion.
C The pressure of a gas is caused by the collision of gas particles with the container.
D Very small particles suspended in a gas are in constant random motion.
▶️Answer/Explanation
Ans : A
Question
A glass jar in a warm room has a metal lid that is easy to remove.
The jar with the lid on is left in a refrigerator overnight.
In the morning, the lid of the jar is difficult to remove.
Which statement is an explanation of what happens when the jar is in the refrigerator?
(A) The glass jar contracted more than the metal lid.
(B) The metal lid contracted more than the glass jar.
(C) The glass jar expanded more than the metal lid.
(D) The metal lid expanded more than the glass jar.
▶️Answer/Explanation
Ans: B