#### Transcript File - 5th Grade Rocks!

```Energy
Contact
Forces
Forces
Levers
Vocabulary
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Can energy be
created or
destroyed?
What is energy can
be created or
destroyed.
Energy that is
released during a
chemical reaction
is called this.
What is chemical
energy
The energy an
object has because
it is in a position
where it is affected
by a force is called
what?
What is potential
energy?
This type of
energy affects
how fast or slow
an object moves.
What is kinetic
energy?
The power in a
neighborhood has gone
out. Families gather
around candles in their
houses to keep warm.
What type of energy is
keeping them warm?
What is
heat
energy?
This is the force
that causes a
moving object to
slow down.
What is friction?
What is the natural
force that causes
objects to move
towards the center of
the earth as a result of
gravitational pull?
What is the
gravity?
What is an invisible
force that
attracts some
metals, especially
iron and steel?
What is
magnetism?
When a marble
hits a stationary
marble, what
happens to the
marble that was
hit?
What is the second
marble moves until
friction causes it
to stop.
Do all items fall at
the same rate?
What is no,
because of air
resistance?
When you arm
wrestling results in
a tie, what type of
force does this
represent?
What is a balanced
force?
When I win in
arm wrestling I
have created
what?
What is an
unbalanced force?
When a book is
lying on a desk,
what forces are
acting on it?
What is gravity?
How can you tell if
unbalanced forces
are acting on an
object?
What is if the
object is in
motion?
What type of force
causes a change in
speed, direction or
motion?
What is
unbalanced force?
Below is a picture of a
human arm. Label the
fulcrum.
What is fulcrum,
What class of lever
system is a
tweezers?
What is class 3
lever?
What is a class 2
lever system?
What is fulcrum,
What happens when
the effort is closer
to the fulcrum?
What is the closer
the effort is to
the fulcrum the
harder it will be to
What is one way that
a lever can provide
user?
What is it
easier to lift?
What is a lever?
What is a simple
machine that
people use to gain
a mechanical
What is a lever
arm?
What is a stick or
beam free to pivot
at a point?
What is a fulcrum?
What
is the
point where
the lever
?
arm pivots
What is the
difference