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A coal fire is burning in the bottom of a furnace, with a chimney above it. Air moves into the furnace from an opening at the bottom and up the chimney. Describe how the process of convection causes this air movement.
GCSE
Related GCSE Questions
A student is investigating how the pressure exerted by a gas varied with the volume of the gas. The initial pressure was 1.6x10^5 Pa, with the volume being 9.0cm^3. Calculate the volume of the gas when the pressure was 1.8x10^5 Pa
A balloon's volume is 0.002m^3 at room temperature (20°C). What volume will the balloon occupy when it is cooled to -5°C? Give your answer to 3 significant figures.
If a car has a mass of 670kg and has a driving force of 1200N and a force from resistance of 300N, what is the acceleration of the car? What is the speed of the car after 5 seconds?
Describe the energy transfers taking place when a person is running up a hill
Explain the difference between energy and power.
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