OCR Physics - Thermal Physics

Description

A2 physics OCR
aidan.rogers
Quiz by aidan.rogers, updated more than 1 year ago
aidan.rogers
Created by aidan.rogers almost 9 years ago
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Resource summary

Question 1

Question
Which of these are the two assumptions of the kinetic theory?
Answer
  • Matter is made up of molecules and the molecules are small.
  • Matter is made up of particles and the particles tend to be small.
  • Matter is made up of particles and the particles tend to move around.
  • Matter is made up of molecules and the molecules tend to move around.

Question 2

Question
Tick the 3 properties of a gas.
Answer
  • The separation between molecules is large.
  • They have very small electric potential energy.
  • They have a large kinetic energy.
  • They cause pressure in a container by colliding with the walls.

Question 3

Question
Brownian motion is the [blank_start]random[blank_end] and erratic motion of molecules in the air. It provides the evidence for the presence of [blank_start]gases[blank_end] in the air which are too [blank_start]small[blank_end] to see. Experiments using smoke grains allows us to deduce that gases in the air must be moving much [blank_start]faster[blank_end] than the smoke grains.
Answer
  • random
  • gases
  • small
  • faster
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