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Biblioteka

Year 7 Heat pressure and predictions.

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Posljednje ažuriranje about 1 year ago
14
Pressure in gases
3
3
3
Physical effects of pressure changes
1
3
2
5
Expansion in solids
1
1
1
1
1
1
Thinking about expansion
1
Pitanje 1
1.

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 variable.

The pressure is the variables.

Pitanje 2
2.

https://www.focuselearning.co.uk/s/29y74vdumou1

As the temperature in a container increases the pressure will variable.

The pressure is the variables.

Pitanje 3
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

Drugi mogući odgovor:
lowest
highest
Pitanje 4
4.

A drink can that has had all of the drink tipped out does not collapse because the gas pressure inside the can is the gas pressure outside the can the can will explode.

If the gas pressure inside the can is

The dependent variable is the (you will need to choose this using the simulation)

Pitanje 9
9.

Place the materials in order form largest expansion to smallest expansion

https://demonstrations.wolfram.com/ThermalExpansionOfSolids/

  1. Zn (an element)

  2. Pb (an element)

  3. Fe (an element)

  4. Al (an element)

Pitanje 10
10.

Place the materials in order form largest expansion to smallest expansion

https://demonstrations.wolfram.com/ThermalExpansionOfSolids/

  1. Brass (a mixture - alloy)

  2. Steel ( a mixture- alloy)

  3. Glass (a mixture)

  4. Pyrex (heat proof glass)

Pitanje 11
11.

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)!

Pitanje 12
12.

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)!

Pitanje 13
13.

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)!

Pitanje 14
14.

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

Once you have made your choice use the hint to test your hypothesis.