Copy of Year 7 Heat pressure and predictions. 7Sa 2014-2015
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Last updated 5 months ago
10 questions
Pressure in gases
3
https://www.focuselearning.co.uk/s/29y74vdumou1
For all of the sections use the simulations / videos to choose the correct options then copy the notes into your exercise book.
As the volume in a container increases the pressure will __________
Predict what you think will happen then use the link to test your prediction.
Analysis of variables
The volume is the __________ variable.
The pressure is the __________ variable.
The temperature, type of particles and number of particles are all __________ variables.
3
https://www.focuselearning.co.uk/s/29y74vdumou1
As the temperature in a container increases the pressure will __________
Predict what you think will happen then use the link to test your prediction.
Analysis of variables
The temperature is the __________ variable.
The pressure is the __________ variable.
The volume, type of particles and number of particles are all __________ variables.
3
https://www.focuselearning.co.uk/s/29y74vdumou1
https://billvining.com/mmlib_sims/#gen_10_7
What combination of volume, temperature and number of particles would give the highest pressure?
____________ temperature, ___________ volume and ____________number of particles
Other Answer Choices:
lowest
highest
Investigating the effect of heat on gases
3
Complete this and then copy it into your book.
At the start of the experiment the gas pressure inside the boiling tube and the gas pressure outside the boiling tube are __________to each other.
When the gas is heated the gas expands and pressure in the boiling tube is ____________than the gas pressure outside of the tube so bubbles of gas ___________.
When the gas in the tube cools down the gas ______________and the gas pressure inside the tube decreases so water is drawn up into the tube.
Other Answer Choices:
contracts
greater
escape
equal
Expansion in solids
1
https://demonstrations.wolfram.com/ThermalExpansionOfSolids/
Use the simulation to determine which of the materials expands the most and which of the materials expands the least.
The independent variable is __________
The dependent variable is the __________
The control variable is the __________ (you will need to choose this using the simulation)
1
Place the materials in order form largest expansion to smallest expansion
https://demonstrations.wolfram.com/ThermalExpansionOfSolids/
Place the materials in order form largest expansion to smallest expansion
https://demonstrations.wolfram.com/ThermalExpansionOfSolids/
- Zn (an element)
- Pb (an element)
- Fe (an element)
- Al (an element)
1
Why do you think that glassware that is designed to be heated in a lab is made out of pyrex instead of normal glass? (Note for the short answer questions you will not get a mark until I have had a look at your answers) (A single word answer will, however, always be worth 0 marks)!
Why do you think that glassware that is designed to be heated in a lab is made out of pyrex instead of normal glass? (Note for the short answer questions you will not get a mark until I have had a look at your answers) (A single word answer will, however, always be worth 0 marks)!
1
From the simulation can we tell if alloys expand more or less than metal elements?(Note for the short answer questions you will not get a mark until I have had a look at your answers) (A single word answer will, however, always be worth 0 marks)!
From the simulation can we tell if alloys expand more or less than metal elements?
(Note for the short answer questions you will not get a mark until I have had a look at your answers) (A single word answer will, however, always be worth 0 marks)!
1
From the simulation can we tell if metals expand more than non metals?(Note for the short answer questions you will not get a mark until I have had a look at your answers) (A single word answer will, however, always be worth 0 marks)!
From the simulation can we tell if metals expand more than non metals?
(Note for the short answer questions you will not get a mark until I have had a look at your answers) (A single word answer will, however, always be worth 0 marks)!
Thinking about expansion
1
What do you think will happen to the size of a hole if piece of metal with a hole in the middle is heated?
The metal will__________
The hole will __________
Once you have made your choice use the hint to test your hypothesis.