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CI Investigation 4
Test Description: Particle motion
Instructions: Answer all questions to get your test result.
1) In this state of matter the molecules are very tightly packed together
A
solid
B
gas
C
liquid
2) Gas particles are
A
tightly packed.
B
loosely bonded and flowing.
C
so hot that the electrons are removed from the nucleus.
D
free to fly in all directions.
3) Solid particles have the _________ energy.
A
most
B
least
C
middle amount of
4) By which process do gases take the shape of their container?
A
contraction
B
evaporation
C
expansion
D
compression
5) According to the kinetic-molecular theory, how does a gas expand?
A
Its particles become larger.
B
Its particles move greater distances.
C
Its temperature rises.
D
Collisions between particles become elastic.
6) Particles within a solid
A
exchange positions easily.
B
vibrate about fixed positions.
C
do not move.
D
move about freely.
7) Contraction takes place when
A
particles lose kinetic energy, move closer together and the volume decreases
B
particles gain kinetic energy and the volume decreases.
C
particles lose kinetic energy and become solid.
D
particles either lose or gain kinetic energy and volume decreases
8) Which of the following types of substances can contract?
A
gases only
B
liquids and gases
C
solids and liquids
D
solids, liquids and gases
9) What is between the particles in any substance?
A
other particles
B
nothing
C
air
D
visible bonds
10) Consider a particle model to predict what will happen if a sharp object creates a hole in the soccer ball.
A
Particles will rush out of the ball until the pressure is equal inside and outside the ball.
B
Particles outside the ball will speed up as the pressure increases.
C
Particles will rush into the ball until the pressure is equal inside and outside the ball.
D
Particles inside the ball will speed up because the pressure inside the ball decreases.
*select an answer for all questions
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