force exerted by a motor

Lesson 7

Getting Started

  1. The goal today is to create a good experimental design and execute it.
  2. Review of characteristics of good experimental design.
  3. Independent variable?
  4. Dependent variable?
  5. Look at sample setup
  6. How many washers can the motor lift? (Prediction)
  7. Can you think of anything that would affect the motor's ability to lift the load of washers? If so, what is it?

7.1

  1. Predict what combination of motor, batteries, and string will enable the motor to lift the largest number of washers. You need evidence to prove your answer. 
  2. Check the equipment to see how it works and to plan an investigation to answer your proposed question.
  3. Set up your own pegboard assembly.  

7.1

  1. Learn how to: a.) use the motor clamp to attach the motor to the pegboard. b.)connect the knife switch in series with the battery and motor. c.) use the knife switch to open and close the circuit. d.) set up two and three batteries in series and in parallel. e.) attach the string securely to the plastic pulley with a piece of tape.
  2. Test to make sure it works with one battery connected. 
  3. Complete steps 7-11.

Homework

(Yes there is homework!!)

  1. Written procedures to carry out your experiment tomorrow. 

force exerted by a motor

By mrshillyer

force exerted by a motor

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