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Total Duration:

31 to 60 Minutes

Materials and Resources:

Per group of students: Ramp, 2 equal mass Hot Wheels toy cars, 5 pennies, tape, meter stick, lab procedures (see attachments)

Technology Resources Needed:

CBR sonic motion detector, graphing calculator

Background/Preparation:

Students and teacher need to know how to use the CBR and graphing calculator.

1.)The lesson is divided into 3 labs that can be completed in any order. In lab 1 (see attachment), the students explore Newton's 2nd law of motion.

2.)The lesson is divided into 3 labs that can be completed in any order. In lab 2 (see attachment), the students explore Newton's 3rd Law of Motion.

3.)The lesson is divided into 3 labs that can be completed in any order. In lab 3 (see attachment), students explore Newton's 3rd Law of Motion.

4.)After labs have been completed, facilitate a class discussion where students summarize and compare findings and relate how their findings support (or refute) Newton's Laws of Motion.

Attachments: **Some files will display in a new window. Others will prompt you to download.

The teacher will check the entries in the lab book for completeness and accuracy.

Acceleration:

Students may want to find the force of the crashes using the formula F=MA. Students will need to find the mass of the cars and the pennies. Some students may also find it interesting to find the speed of the cars. For more advanced students, a scale speed can be obtained.

Intervention:

Some students may need extra preparation with the Laws of Motion. Teachers may want to restate the laws in simpler terms.

Each area below is a direct link to general teaching strategies/classroom
accommodations
for students with identified learning and/or behavior problems such as: reading
or math performance below grade level; test or classroom assignments/quizzes at
a failing level; failure to complete assignments independently; difficulty with
short-term memory, abstract concepts, staying on task, or following directions;
poor peer interaction or temper tantrums, and other learning or behavior problems.