Part2:Designing an Investigation
Erika asked her team members how they could build the strangest electromagnet to answer the hypotlesis," What variables determine how we build the strongest electromagnet
quanty of magnehe mela from arubte persue le lighs
worked with the baseline design of the elechomagnes in the model to the right as well as the materials listed below to develop an investigative procedute that included the following steps:
Experiment Design
t. Wrap the iron bar core with copper wire.
- Attach the free ends of the copper wire to the battery to produce a current in the wire and a magnetic Field from the coil.
- Use your eye to see how much melal the electromagnet pick up.
- try the procedure again with a different setup to use your eyes to see If the electromagnet pick up more mental.
Materials
• A coil of copper wire (1,000 turns)
• A coils of copper wire (5,000 turns)
• A coll of copper wire (10,000 turns)
• Iron bat
25.0Kg iron block
• 1.5 kg iron block 6,25 koiron block
• 24U battery
• MUSbattery
• 6U battery
• Magnet tometer (measures the Strength of magnetic field)
• Ammeter (measures electric current)
"Digital scale (measures mass)
Strength 1 of the Procedure
Limitation 1 of the Procedure & Variables Present
Strength 2 of the Procedure
Limitation 2 of the Procedure & Variables Present
Part 2: Revise the Procedure
Based on the strengths and limitations of the experimental design you identified, revise the experimental design to better address the question,”how do we determine how to biuld an alectromangnet to remove the highest quantity of magnetic matah from a rubble pile?
On the next pages, be sure to design your procedure to:
a. Collect more accurate and precise data. b.
C.
Include specific independent, dependent, and controlled variables.
Identify any changes you make to the original procedure and how they address the limitations you identified above.
d.
Determine a cause-and-effect relationship between your independent variable and your dependent variable.
Independent Variable:
Dependent Variable:
Controlled Variables:
Materials and Procedure:
Changes to Original Procedure and How They Address Limitations From Part 2:
Cause and Effect Relationship:
