Gases
1.
Gases are made of millions of tiny particles called ……………………………………..…
2.
These particles are ……………………………………………….. at high speed
3.
The gas exerts a pressure because the particles
……………………………. with the
walls of the container.
4.
When the temperature of the gas gets less the particles move ………………………………
5.
When the temperature of the gas gets bigger the particles move ……………,,…………..…
6.
If you compress some gas in a piston the pressure of the gas ………………………………
7.
If you heat a gas in a sealed can (dangerous!) the pressure of the gas will
………………..
and
eventually the can may …………………………….. This happens because the particles in
the
gas are ……………………………………………………………………………………………..
8.
The particles in a gas with a low density will move …………………………….. than those
of
a high density if both the gases are at the same temperature.
9.
When you pump up a bicycle tyre the pressure inside the tyre gets bigger
because
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
10.
If all the gas particles are taken out of a sealed can the space left behind in
the can is
called
a …………………………………….
