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Unit #2 - 8th Grade Matter Vocabulary
Test Description: Matter Vocabulary
Instructions: Answer all questions to get your test result.
1) the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
A
Thermal Energy
B
Conduction
C
Radiation
D
Convection
2) the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
A
Conduction
B
Thermal Energy
C
Convection
D
Radiation
3) physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
A
Liquid
B
Gas
C
Solid
D
Matter
4) the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
A
Thermal Energy
B
Temperature
C
Heat
D
Energy
5) the lowest temperature that is theoretically possible, at which the motion of particles that constitutes heat would be minimal. It is zero on the Kelvin scale, equivalent to –273.15°C or –459.67°F.
A
Cooling
B
Freezing
C
Melting
D
Absolute Zero
6) continuous physical force exerted on or against an object by something in contact with it.
A
Thermal Energy
B
Pressure
C
Melting Point
D
Liquid
7) the degree of compactness of a substance.
A
Mass
B
Weight
C
Density
D
Thermal Energy
8) a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).
A
Gas
B
Plasma
C
Liquid
D
Solid
9) the ability or tendency to float in water or air or some other fluid.
A
Floating
B
Buoyancy
C
Sinking
D
Solid
10) a substance that flows freely but is of constant volume, having a consistency like that of water or oil.
A
Plasma
B
Liquid
C
Solid
D
Gas
11) heat seen as a form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction, convection, or radiation.
A
Thermal Energy
B
Conduction
C
Convection
D
Heat
12) the temperature at which a given solid will melt.
A
Freezing Point
B
Boiling Point
C
Melting Point
D
Hot Point
13) the principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure. Also called Bernoulli effect or Bernoulli theorem.
A
Thermal Energy
B
Newton's Laws
C
Bernoulli’s Principle
D
Aristotle
14) the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
A
Radiation
B
Conduction
C
Convection
D
Thermal Energy
15) a result stating that a body totally or partially immersed in a fluid is subject to an upward force equal in magnitude to the weight of fluid it displaces.
A
Floating
B
Radiation
C
Convection
D
Archimedes” Principle
16) the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
A
Specific Heat
B
Heat
C
Energy
D
Temperature
17) the temperature at which a liquid boils and turns to vapor.
A
Freezing Point
B
Boiling Point
C
Melting Point
D
Hot Point
18) firm and stable in shape; not liquid or fluid.
A
Liquid
B
Solid
C
Gas
D
Plasma
*select an answer for all questions
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