5410 Words22 Pages

Investigating the Bounce of a Squash Ball

This investigation is associated with the bounce of a squash ball. I

will be investigating 4 different types of squash balls, which have

different, bounce properties and compare them to each other and relate

them to why each different type of squash ball is used. The

relationship will be associated with how different balls are used at

different levels of proficiency in the game of squash i.e. the squash

balls that don't bounce much will probably used at a less proficient

level whereas the balls with the most bounce will be used at

professional level. The different coloured squash balls I will be

using are; white, yellow, red and blue, and I will be finding out what

the difference is between them.

Background Knowledge

--------------------

Pressure

The three scientists Boyle, Amontons and Charles investigated the

relationship between gas, volume and temperature. Boyle discovered

that for a fixed mass of gas at constant temperature, the pressure is

inversely proportional to its volume. So in equation form this is:

pV = constant if T is constant

Amontons discovered that for a fixed mass of gas at constant volume,

the pressure is proportional to the Kelvin temperature. So in equation

form this is:

p µ T if V is constant

Shown below this is represented on graphs in (oC) and (K).

[IMAGE] P

[IMAGE]

[IMAGE] q/oC

-273 0

[IMAGE]

P

0 T/K

Charles discovered that for a fixed mass of gas at constant pressure,

the volume is proportional to the Kelvin temperature. So in equation

form this is:

V µ T if p is constant.

The Equation Of State

These three gas laws that were proposed by Boyle, Amontons and Charles

can be summarised as follows:

For a fixed mass of gas

pV = constant if T = constant (i)

p/T = constant if V = constant (ii)

V/T = constant if p = constant (iii)

This investigation is associated with the bounce of a squash ball. I

will be investigating 4 different types of squash balls, which have

different, bounce properties and compare them to each other and relate

them to why each different type of squash ball is used. The

relationship will be associated with how different balls are used at

different levels of proficiency in the game of squash i.e. the squash

balls that don't bounce much will probably used at a less proficient

level whereas the balls with the most bounce will be used at

professional level. The different coloured squash balls I will be

using are; white, yellow, red and blue, and I will be finding out what

the difference is between them.

Background Knowledge

--------------------

Pressure

The three scientists Boyle, Amontons and Charles investigated the

relationship between gas, volume and temperature. Boyle discovered

that for a fixed mass of gas at constant temperature, the pressure is

inversely proportional to its volume. So in equation form this is:

pV = constant if T is constant

Amontons discovered that for a fixed mass of gas at constant volume,

the pressure is proportional to the Kelvin temperature. So in equation

form this is:

p µ T if V is constant

Shown below this is represented on graphs in (oC) and (K).

[IMAGE] P

[IMAGE]

[IMAGE] q/oC

-273 0

[IMAGE]

P

0 T/K

Charles discovered that for a fixed mass of gas at constant pressure,

the volume is proportional to the Kelvin temperature. So in equation

form this is:

V µ T if p is constant.

The Equation Of State

These three gas laws that were proposed by Boyle, Amontons and Charles

can be summarised as follows:

For a fixed mass of gas

pV = constant if T = constant (i)

p/T = constant if V = constant (ii)

V/T = constant if p = constant (iii)

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