Figure 1 shows a balloon filled with helium gas inside the balloon - AQA - GCSE Physics - Question 1 - 2018 - Paper 1
Question 1
Figure 1 shows a balloon filled with helium gas inside the balloon.
1. Describe the movement of the particles of helium gas inside the balloon.
2. What name is giv... show full transcript
Worked Solution & Example Answer:Figure 1 shows a balloon filled with helium gas inside the balloon - AQA - GCSE Physics - Question 1 - 2018 - Paper 1
Step 1
Describe the movement of the particles of helium gas inside the balloon.
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Answer
The particles of helium gas inside the balloon exhibit a range of speeds. They are moving in different directions, colliding with each other and the walls of the balloon. This motion can be described as random motion.
Step 2
What name is given to the total kinetic energy and potential energy of all the particles of helium gas in the balloon?
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Answer
The total kinetic energy and potential energy of all the particles of helium gas in the balloon is referred to as 'internal energy'.
Step 3
Write down the equation which links density, mass and volume.
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Answer
The equation that links density, mass, and volume is given by:
extdensity=volumemass
Step 4
Calculate the density of helium.
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Answer
To calculate the density of helium, we use the mass and volume provided:
