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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
volume
B
pressure
C
container
D
molecular composition
2) Pressure is calculated by dividing the force by the_________________ over which the force is exerted
A
volume
B
mass
C
none of the answers are correct
D
area
3) Buoyant force is the ______________ force exerted on an object immersed or floating in a liquid
A
downward
B
upward
C
lateral
D
tensile
4) As the temperature of a fixed amount of gas at constant volume decreases,its pressure
A
decreases
B
increases
C
stays the same
D
none of the answersarecorrect
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 higher the temperature of a substance, the faster the particles move
C
all of the answers are correct
D
The atoms and molecules of a substance are always in motion
6) The measure of the average kinetic energy is an object is called
A
thermal energy
B
plasma
C
particle energy
D
kinetic temperature
7) All matter is made of atoms and molecules that are
A
moving slowly
B
moving in the same direction
C
always fixed in position
D
always in motion
8) According to the law of conservation of energy
A
energy is not transferred during changes of state
B
energy is not created or destroyed
C
energy is not absorbed or released in 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
created
B
destroyed
C
released
D
absorbed
10) The temperature at which a substance changes from a liquid to a solid is called
A
condensation point
B
saturation point
C
boiling point
D
freezing point
*select an answer for all questions
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