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Properties And Composition Of Matter Unit Test
Test Description: Students study for unit test 3 on the properties and composition of matter
Instructions: Answer all questions to get your test result.
1) Which is composed of matter?
A
an atom
B
light
C
electricity
D
heat
2) Which is true when comparing two pure iron magnets?
A
They contain the same types of atoms but different elements
B
They contain different types of atoms but the same elements
C
They contain the same types of atoms and elements
D
They contain different types of atoms and elements
3) How are the atoms in an object affected when the temperature of the object increases?
A
They split apart
B
They vibrate slower
C
They join together
D
They vibrate faster
4) In which situation would the atoms of an object begin to move closer together during a phase change?
A
Heat is removed as a liquid turns into a gas
B
Heat is added as liquid turns into a solid
C
Heat is removed as a gas turns into a liquid
D
Heat is added as a solid turns into a gas
5) Which statement accuractely compares the melting point of 50 grams of an element to 100 grams of the same element?
A
The melting point for each element would double because the mass was changed
B
The melting process would occur more quickly at 50 grams, but the melting point would remain the same
C
The melting point for each element would decrease by half because the mass was changed
D
The melting process would occur more quickly but the melting point would decrease by half
6) How does 250 ml of water compare to 500 ml?
A
They have the same melting point but different boiling points
B
They have the same boiling point but different melting points
C
They have the same density but different volumes
D
They have the same volume but different densities
7) How does the density of a 4-g sample of copper compare to that of a 12-g sample of copper?
A
Its density is three times the density of the 12-g sample
B
Its density is one half the density of the 12-g sample
C
Its density is twice the density of the 12-g sample
D
Its density is the same density as the 12-g sample
8) Which is true of every atom of an element?
A
It is joined together with another atom
B
It has mass and volume
C
It can be seen with a magnifying glass
D
It is weightless
9) A student has two pieces of aluminum foil. Each piece can be folded and rolled into a wire. Why do both pieces of aluminum foil behave the same way?
A
They are composed of different types of atoms
B
They have the same chemical properties but different physical properties
C
They are composed of the same types of atoms
D
They have the same physical properties but different chemical properties
10) In what way are atoms of oxygen most different from atoms of nitrogen?
A
They have different temperatures
B
They have different colors
C
They have different masses
D
They have different states of matter
*select an answer for all questions
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