1
Navy NAPT Study Guide Questions and
Correct Answers
Atom Answer: the smallest elemental unit in a
sample of matter that retains some identity. Hint:
elements identify as this.
Chemistry Answer: the study of the composition and
structure of matter, as well as the changes that occur
in matter.
Atoms can be broken down into Answer: subatomic
particles (protons, neutrons, electrons)
Molecule Answer: a unit larger than an atom in which
2 or more atoms are joined together.
Chemical Reaction Answer: process which occurs
when matter undergoes a change in composition
and/or structure of its molecules. Happens when 2
molecules or elements are combined, and a
rearrangement occurs between atoms.
Element Answer: A pure substance made of only one
kind of atom.
Pretest - Stuvia US
,2
Compound Answer: Type of molecule formed by the
chemical combination of two or more different
elements.
Mixture Answer: A combination of two or more
substances that are not chemically combined
Heterogeneous Mixture Answer: A type of mixture
that varies in composition from place to place.
Homogeneous Mixture Answer: A mixture in which
substances are evenly distributed throughout the
mixture.
projectile motion Answer: the curved path that an
object follows when thrown, launched, or otherwise
projected near the surface of Earth.
Distance Answer: the total length of the path that the
object travels.
Displacement Answer: the length between an object's
start and end-point along with the direction it traveled.
Pretest - Stuvia US
, 3
Positive displacement travels in which directions?
Answer: North/East
Negative displacement travels in which directions?
Answer: South/West
Distance is always positive and displacement can be
positive or negative(T/F) Answer: T
Displacement is always positive and distance can be
positive or negative(T/F) Answer: F
Speed Answer: the rate at which someone or
something is able to move or operate.
formula for distance Answer: d=vt; distance= speed
* time
formula for displacement Answer: d=vt;
displacement= velocity * time
distance and displacement share the same
formula(T/F) Answer: T
Is speed scalar or vector? Answer: scalar
Pretest - Stuvia US
Navy NAPT Study Guide Questions and
Correct Answers
Atom Answer: the smallest elemental unit in a
sample of matter that retains some identity. Hint:
elements identify as this.
Chemistry Answer: the study of the composition and
structure of matter, as well as the changes that occur
in matter.
Atoms can be broken down into Answer: subatomic
particles (protons, neutrons, electrons)
Molecule Answer: a unit larger than an atom in which
2 or more atoms are joined together.
Chemical Reaction Answer: process which occurs
when matter undergoes a change in composition
and/or structure of its molecules. Happens when 2
molecules or elements are combined, and a
rearrangement occurs between atoms.
Element Answer: A pure substance made of only one
kind of atom.
Pretest - Stuvia US
,2
Compound Answer: Type of molecule formed by the
chemical combination of two or more different
elements.
Mixture Answer: A combination of two or more
substances that are not chemically combined
Heterogeneous Mixture Answer: A type of mixture
that varies in composition from place to place.
Homogeneous Mixture Answer: A mixture in which
substances are evenly distributed throughout the
mixture.
projectile motion Answer: the curved path that an
object follows when thrown, launched, or otherwise
projected near the surface of Earth.
Distance Answer: the total length of the path that the
object travels.
Displacement Answer: the length between an object's
start and end-point along with the direction it traveled.
Pretest - Stuvia US
, 3
Positive displacement travels in which directions?
Answer: North/East
Negative displacement travels in which directions?
Answer: South/West
Distance is always positive and displacement can be
positive or negative(T/F) Answer: T
Displacement is always positive and distance can be
positive or negative(T/F) Answer: F
Speed Answer: the rate at which someone or
something is able to move or operate.
formula for distance Answer: d=vt; distance= speed
* time
formula for displacement Answer: d=vt;
displacement= velocity * time
distance and displacement share the same
formula(T/F) Answer: T
Is speed scalar or vector? Answer: scalar
Pretest - Stuvia US
