TASK: Answer these question below to assess your progresss.
Key words: particles, pressure, energy, collision, balloon, inflated Key
words: particles, pressure, energy, collision, balloon, inflated
1) What are the particles doing
inside the balloon? Circle two
answers.
Jumping
Moving
Colliding
4) What has the cold temperature of the
fridge done to the particles – how are the
behaving now?
Hopping
2) Draw the particles onto the picture
of the balloon.
Show the particles like this
Show them moving like this
5) Why has this caused the balloon to
deflate? Tick the correct response.
 The slower moving particles produce
less pressure on the walls of the balloon
so it shrinks
 The walls of the balloon are cold so the
balloon deflates
3) Why is the balloon inflated –
and staying that way?
The particles are c_____________
with the walls of the b_________.
This produces a p____________
on it that keeps the balloon
inf___________
 The air inside the balloon escapes when
it is cold so the pressure of the balloon
changes
 The freezer has less oxygen than normal
air so the balloon shrinks
1.
2
2.
3.3
2 2
1)
The p
on the
and
Heating the
of a can
the pressure
on
2
When the can is placed in
This decreases the
2
the steam
on the
The surroundings have a higher pressure relative to the walls the of can
wh the