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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
liquid
C
gas
2) Gas particles are
A
free to fly in all directions.
B
loosely bonded and flowing.
C
so hot that the electrons are removed from the nucleus.
D
tightly packed.
3) Solid particles have the _________ energy.
A
least
B
middle amount of
C
most
4) By which process do gases take the shape of their container?
A
evaporation
B
expansion
C
compression
D
contraction
5) According to the kinetic-molecular theory, how does a gas expand?
A
Its particles move greater distances.
B
Collisions between particles become elastic.
C
Its temperature rises.
D
Its particles become larger.
6) Particles within a solid
A
exchange positions easily.
B
move about freely.
C
vibrate about fixed positions.
D
do not move.
7) Contraction takes place when
A
particles lose kinetic energy, move closer together and the volume decreases
B
particles either lose or gain kinetic energy and volume decreases
C
particles lose kinetic energy and become solid.
D
particles gain kinetic energy and the volume decreases.
8) Which of the following types of substances can contract?
A
gases only
B
solids, liquids and gases
C
liquids and gases
D
solids and liquids
9) What is between the particles in any substance?
A
other particles
B
air
C
nothing
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 outside the ball will speed up as the pressure increases.
B
Particles will rush into the ball until the pressure is equal inside and outside the ball.
C
Particles will rush out of 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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