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Simple
Motion Forces & Work & Work & Simple
Motion Energy Energy2 Machines Machines
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An object’s ______
can be described as
points on axes in a
grid.
What is position?
This can be positive
or negative, includes
a measure of
direction, and
measures the rate of
change of velocity.
What is a
acceleration?
What is momentum
and how does it
work?
What is: momentum is the
product of mass x velocity; the
more momentum an object has,
the easier it is for the object to
move other objects?
This is how
acceleration and
deceleration
compare to one
another.
What is: Acceleration change in velocity over
time for an object
Deceleration - decrease in
velocity over time for an
object?
Why is it harder to
overcome the inertia
of a bowling ball
than a baseball?
What is: because
the bowling ball
has greater mass?
A smooth surface
usually has less of
this than a rough
surface.
What is friction?
Mass x Velocity =
???
What is
momentum?
Pushes, pulls, and
lifts are all types of
_____.
What is force?
Two forces acting on
an object in a way
that changes the
object’s motion
create _____.
What is an
unbalanced force?
According to
Newton’s Law of
Universal
Gravitation, the
force of gravity
What is distance
and mass?
A roller coaster
losing potential
energy and gaining
kinetic energy is an
example of the ___.
What is the law of
conservation of
energy?
The amount of
energy used to
perform a task is
this.
What is work?
List three types of
kinetic energy.
What is: heat,
electrical, and sound
energy?
This is an example
of potential energy.
What is a coiled
spring?
What is kinetic
energy and give an
example.
What is: kinetic
energy - energy of a
moving object;
example - running?
Performing work
or changing an
object requires
this.
What is energy?
Energy of a moving
object is called this.
What is kinetic
energy?
This requires the
least amount of
work.
What is less
distance, less mass?
According to the
law of conservation
of energy, when an
object gains kinetic
energy it loses...
What is potential
energy?
Explain what
potential energy is
and give an example
of potential energy.
Potential energy - energy
that is stored in the
position or structure of
an object; example coiled spring.
This takes one force
and changes its
direction, distance,
or strength.
What is a simple
machine?
The ratio of input
energy to output
work is ___.
What is efficiency?
A knife is an
example of ___.
What is a wedge?
A school building
has a ramp instead
of steps at the back
door. This is an
example of _____.
What is an inclined
plane?
What part of a
seesaw is the
fulcrum and what
part is the lever?
What is: the seat is
the lever and the
middle is the
fulcrum?
A lever rotates
around a pivot point
called _____.
What is a fulcrum?
An object that
moved as a result of
a machine working
is called the ____.
What is the load?
What type of
machine is formed
when two or more
machines are
combined?
What is a compound
machine?
Which is an example
of a lever?
What is a seesaw?
Explain why it is easier
to move an object up a
long ramp than a short
ramp, assuming the
height of the ramp
stays the same.
A ramp is an inclined
plane. More effort is
required to go up a
short ramp than a
long ramp.