# Ballistic Pendulum Designed Experiment

Topics: Mass, Kilogram, Ruler Pages: 2 (301 words) Published: September 4, 2010
Ballistic pendulum designed experiment
Aim: to investigate how the mass of the projectile affects distance on the motion of a wooden block it strikes Hypothesis: the heavier the projectile the further the distance will be covered by the wooden block Variables:

variablesIdentificationManipulation
IndependentMass of projectileThe four different masses will be used in different combinations DependentdistanceMeasured using tape measure
Controlled1.Height of retort stand
2.Release angle
3.The length of the wires
4.Mass of the wooden block1.The same stands will be used for all experiments 2.The angle will be a constant of 90 degrees
3.Same wires used for every trial

Equipment list:
1.Tape measure
2.2 retort stands
3.1.00,0.50,0.25,0.10 kilogram projectiles
4.Wooden block
5.Big protractor
6.black Whiteboard marker
7.2 wires
8. 30cm ruler

Method:
1.Place both retort stands on opposite table and suspend the projectile in between them using the two wires 2.Mark the starting point of the wooden block
3.Pull the string taught and suspend the projectile perpendicular to the horizontal 4.Release the projectile
5.Measure the distance travelled by the projectile and record it in the data table 6.Repeat the trials 5 times
7.Repeat step 1 but with the prescribed masses
8.Follow through to step 8 again
9.Data table:
trialWeight of projectile( kilograms) distance (meters)Average distance(DA in meters) 11.00
1.00
1.00
1.00
1.00
20.50
0.50
0.50
0.50
0.50
30.75
0.75
0.75
0.75
0.75
40.10
0.10
0.10
0.10
0.10
51.25
1.25
1.25
1.25
1.25