Physics Trolley Lab

Topics: Acceleration, Mass, Kinematics Pages: 39 (1224 words) Published: September 19, 2013
Grade
 9
 Science
 –
 Trolley
  Lab
 
 

 
-­‐
 Luca
 Weller
 –
 AOI:
 Environment
 –
  17/9/13
 

D.4
 Materials:
 
-­‐1
 trolley
 that
 will
 be
 accelerated
  -­‐1
 string
 to
 connect
 the
 trolley
 and
 
 
 
 
 
 
  the
 weights
 (ca.
 2m)
  -­‐1
 set
 of
 weights
 that
 will
 accelerate
  the
 trolley
 (up
 to
 5N)
  -­‐1
 a.m.
 to
 measure
 the
 acceleration
  Smart
 ^
 
 
(including
 all
 pieces)
 

D.1
 Aim
 of
 Experiment:
 

^Trolley
 

 

The
 aim
 of
 this
 experiment
 is
 to
 test
  Sir
 Isaac
 Newton’s
 second
 law
 of
  motion
 F=ma
 (1).
 We
 will
 be
 testing
  this
 by
 accelerating
 a
 test
 trolley
  (Trolley’s
 weight:
 667.29g)
 attached
  to
 a
 weight
 hanging
 off
 a
 table
 over
  an
 acceleration
 meter
 (smart
  pulley).
 The
 a.m.
 (2)
 is
 connected
 to
 a
  device
 that
 measures
 and
 graphs
 any
  de/acceleration
 that
 a
 cured.
 We
 will
  plot
 the
 results
 and
 determine
 our
  final
 data
 by
 the
 plots
 
 

-­‐1
 long
 testing
 plank
 where
 the
  trolley
 can
 accelerate
 on
  -­‐1
 table,
 or
 other
 type
 of
 elevation
 so
  that
 the
 weight
 can
 fall
 somewhere
  -­‐1
 paper
 and
 pencil
 /
 computer
 for
  plotting
 results
 
 

Pulley
 

  D.5
 Method:
 

D.2
 Hypothesis:
 
m
  a
 

 

I
 think
 that
 the
 higher
 the
 force
 the
  faster
 the
 acceleration.
 Since
 F=ma
  and
 a=F/m
 and
 the
 force
 is
 what
 we
  change,
 we
 will
 need
 a
 higher
 force
  to
 increase
 the
 acceleration.
 If
 the
  equation
 a=F/m
 is
 true
 the
  acceleration
 and
 the
 force
 will
 be
  directly
 proportional
 because
 there
  are
 no
 exponential
 or
 fraction
 in
 the
  equation
 which
 makes
 it
 directly
  proportional.
 (The
 force
 is
 the
  weight
 accelerating
 the
 trolley).
 
 

D.3
 Variables:
 

Independent
 variable:
  -­‐We
 will
 be
 changing
 the
 Force.
  {Newton’s
 (N)}
  Dependent
 variable:
  We
 will
 be
 measuring
 the
  acceleration
 of
 the
 trolley.
  (m/s^2)(3)
  Control
 variable:
  -­‐We
 will
 keep
 the
 weight
 of
 the
  trolley
 the
 same.
 (667.29g)
  -­‐We
 will
 keep
 the
 testing
 plank
 the
  same.
  -­‐We
 won’t
 change
 any
 properties
 of
  the
 acceleration
 meter.
 

 
 
 
 

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