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Ch 3
Test Description: PS States of Matter
Instructions: Answer all questions to get your test result.
1) Gay Lussac's Law relates the temperature of a gas to its
A
molecular composition
B
volume
C
container
D
pressure
2) Pressure is calculated by dividing the force by the_________________ over which the force is exerted
A
none of the answers are correct
B
area
C
volume
D
mass
3) Buoyant force is the ______________ force exerted on an object immersed or floating in a liquid
A
downward
B
tensile
C
lateral
D
upward
4) As the temperature of a fixed amount of gas at constant volume decreases,its pressure
A
decreases
B
increases
C
none of the answersarecorrect
D
stays the same
5) According to the kinetic theory of matter, which of the followings statements is true about matter
A
More massive particles move more slowly than less massive particles
B
The atoms and molecules of a substance are always in motion
C
all of the answers are correct
D
The higher the temperature of a substance, the faster the particles move
6) The measure of the average kinetic energy is an object is called
A
particle energy
B
plasma
C
kinetic temperature
D
thermal energy
7) All matter is made of atoms and molecules that are
A
always in motion
B
always fixed in position
C
moving in the same direction
D
moving slowly
8) According to the law of conservation of energy
A
energy is not absorbed or released in changes of state
B
energy is not created or destroyed
C
energy is not transferred during changes of state
D
a substance has the same energy before and after a change.
9) When ice melts to form liquid, energy is _____________
A
released
B
destroyed
C
created
D
absorbed
10) The temperature at which a substance changes from a liquid to a solid is called
A
freezing point
B
condensation point
C
boiling point
D
saturation point
*select an answer for all questions
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