IPC Unit 2 Practice Test
The buoyant force of water is greater than the weight of a stick. The stick will __________.
float
The density of a toy is less than the density of water. The toy will _________.
float
A process in which a liquid changes into a solid is ___.
freezing
a state of matter in which particles are not held together and it does not have a definite shape or volume viscosity
gas
a tool to accurately measure volume of a liquid
graduated cylinder
A mixture that is nonuniform in composition is called ___.
heterogeneous
a physical property that does not depend upon the amount of the matter that is present in the sample
intensive
a state of matter in which particles are held loosely together and it does not have a definite shape but has a definite volume
liquid
the amount of matter that an object is made of
mass
A process in which a solid changes into a liquid is ___.
melting
A(n) ________________________ is the combination of two or more substances that are not chemically bound to one another.
mixture
A(n) ___ is two or more atoms that chemically join together.
molecule
What are examples of chemical changes?
none of these
Water exists on Earth naturally as a solid, a liquid, and a gas. Is the state of water a chemical or physical property?
physical
the force that is exerted per unit area
pressure
a state of matter in which particles are packed tightly together and have a definite shape and volume
solid
A process in which a solid changes directly into a gas is ___.
sublimation
_____________________ describes matter that can transfer heat from one substance to another.
thermal conductivity
A process in which a liquid changes into a gas is ___.
vaporization
Honey resists flowing more than water, as honey has a higher ___ than water.
viscosity
a property that refers to the resistance to flow by a fluid
viscosity
Select the names of the substances for the product(s) in the equation.
water
a measurable value that is determined from the amount of gravitational force exerted on a given object
weight
A(n) ___ is a substance that is unable to break down or separate into simpler substances by chemical methods.
element
________________________ describes matter that can be pounded into a thin sheet
Malleability
the ability for a fluid to exert an upward force on an object submerged in that fluid
buoyancy
A process in which a gas changes directly into a solid is ___.
deposition
A way to separate mixtures based on the boiling points of different substances is called _______________________.
distillation
A substance's temperature ___ during a phase change.
does not change
a tool used to find the mass of a small amount of substance
electric mass balance
What are examples of physical changes?
- Water boiling into steam - Carving a pumpkin - Slicing an apple
Select the names of the substances for the reactant(s) in the equation.
- oxygen - hydrogen
At which temperature does the substance condense?
100*C
At which temperature does the substance vaporize?
100*C
At which temperature does the substance freeze?
70*C
At which temperature does the substance melt?
70*C
A(n) ________________________ is a substance that is made from atoms of different elements.
Compound
________________________ describes matter that can be stretched into a thin wire.
Ductility
A mixture that is uniform in composition is called ___.
Homogeneous
If the pressure of a gas is increased by 2X, what will happen to the volume?
It will increase by +2.
If the temperature of a gas is increased by 2X, what will happen to the volume?
It will increase by 2X.
A ___ is a heterogeneous mixture where visible particles settle.
Suspension
Which statement accurately describes the properties of this rose?
The intensive properties of the rose are that it is red and smells sweet AND the extensive properties are that it is 8 centimeters long.
A(n) ___ is the smallest unit of an element that retains the properties of that element.
atom
Sublimation, melting, and vaporization are phase changes that are ______________________.
endothermic
Freezing, condensation, and deposition are phase changes that are ______________________.
exothermic
a physical property that depends on the amount of matter that is measured
extensive
A ___ is a special mixture that contains large particles, but not large enough to settle to the bottom.
colloid
A process in which a gas changes into a liquid is ___.
condensation
Which separation method would you use to remove sugar from sweet tea?
crystallization
