# Mousetrap Car Challenge

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Define the Problem—Mousetrap Car Challenge

Gather and Explore Checklist
Brainstorm on Force and Motion What do we already know chart Gather information (what do we need to know) Draw a system diagram of mousetrap. Balloon Car simulation Snapper Investigation Gather information on motion Reflect on the application to your mousetrap car—T-Chart Gather information on force. Reflect on the application to your mousetrap car. T-Chart Gather information on Simple Machines. Reflect on the application to your mousetrap car. T-Chart

Date Due

Explore Ideas—Brainstorm ideas you could use for your car, including the scientific ideas you have from your research.

Plan, Steps, Testing, Final Car
Design prototype of car— Labeled Diagram Parts list Reason for each part based on evidence from investigations and readings Build car Test Car—record results—decide on one change—justify change with data from investigation and readings. Make change. Due Date

Repeat test of car stem until final car is ready.
Labeled diagram of final car with parts list and reasons for each part based on data from investigations and readings. Present car to class with reasons for all design decisions. Take notes on all presentations Final test of all cars. Record data for all cars Written Evaluation of your cars performance with what you would change and why. And answer the unit question—Why do some cars travel further than others, using the information collected in this unit.

Snapper Investigation
IQ—What effect does snapper angle have on the force (Newton's) needed to lift the snapper? Prediction-MV—snapper angle measured in degrees lifted from base. zero, 10,20,30, 40, 50 ,60, 70, 80, and 90 degrees. Repeat for 3 trials. Be sure to find the average. RV—force as measured by a spring scale in Newton's Record in Lab notebook the Organizational Information above Back to Checklist . Draw the data table Perform the Investigation as per demonstration.

Other investigations to Ponder
• What is the effect of placement of wheels and axles on the distance? • What is the effect of snapper length on the amount of force? • What is the speed of your car? • What is the effect of the mass of the car on distance traveled? • What is the effect of the type of tire on distance traveled? • Others?

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 views: 317 posted: 11/3/2009 language: English pages: 6