Transcript powerpoint

Newton’s
First Law
Newton’s
Second Law
Newton’s
Third Law
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Kinematics Measurement
The resistance
of an object to
a change in
velocity
What is
inertia?
What a
baseball does
if you throw it
in space
What is
continue
moving in a
straight line?
Why things
thrown on
Earth
eventually
stop
What is
friction?
The quantity
which
determines an
object’s inertia
What is the
mass?
If you swing a ball
clockwise on a
string, it is the
direction the ball
goes when released
at “9 o’clock”
What is
upwards?
It is the cause
of an object’s
acceleration
What is
net force?
Acceleration is
inversely
proportional to it
What is the
mass?
The force with
which gravity
pulls on a 10kg
object
What is 100N?
The acceleration
of a 50kg object
pulled with 10N
What is
.5 m/s/s?
The time during which a net
force acting on an object
whose graph is:
What is during
the first
second?
If the action
force is you
pulling on a
rope, this is the
reaction force
What is the
rope pulling on
you?
The amount of
force with which
a scale pushes
up on my feet
(if I am still)
What is my
weight?
It pushes on
airplanes to
make them go
What is air?
If an action force is
Object A pushing
Object B, then the
reaction force acts
on what object
What is object
A?
The force of a
strongman pulling
on you plus the
force of you pulling
on the strongman
What is 0 N?
Velocity equals
(final position initial position)
divided by this
What is the
change in time?
If I move East with a
velocity of 10 m/s,
a velocity of -5 m/s
represents movement
in this direction
What is West?
It is defined as
a change in
velocity divided
by a change in
time
What is
acceleration?
The equation
2
d=1/2 at ,
solved for
acceleration
What is
2
a=2d/t ?
The accelerations
shown below:
What is
2
-1 m/s ,
2
then 0 m/s ?
It is the
standard (SI)
unit of force
What is the
Newton (N)?
The difference
between your
measurement
and the true
value
What is error?
To reduce error,
scientists often take
multiple
measurements and
then do this
What is take an
average?
To get the percent
error, you divide
the error by the
true value, then
multiply by this
number
What is 100?
If your
measurements are
consistently wrong
in one direction, it
might be due to
this type of error
What is
“Systematic
error”?