# NEWTON'S 2nd LAW LAB

When an unbalanced force (net force) is applied to an object, the motion of that object will be changed. The change depends upon the size of the net force as well as the size of the object, size measured by its mass.

Newton's 2nd Law of Motion gives a relationship between the three variables, and you will work with them as you attempt to solve a specific problem in dynamics, the study of which motions come from which kinds of forces. In addition to answering a specific problem, you will develop an experimental understanding of Newton's 2nd Law through your laboratory work.

Purpose

• Develop a understanding of how varying the net force on an object affects the acceleration
• Develop a understanding of how varying the mass of an object affects the acceleration
• Solve a specific problem involving a force applied to an object

Procedure

1. Vary the amount of net force acting on the system, each time measuring the acceleration. Maintain the mass of the system constant as you complete this step. Use at least 5 different force combinations.

2. Vary the mass of the system, each time measuring the acceleration. Maintain the net force at a constant value as you complete this step. Use at least 5 different mass combinations.

3. Solve the specific problem stated for your particular piece of apparatus and experimental procedure.

Analysis

1. Construct a graph of acceleration versus force for step (1). Determine the mathematical equation and state the general relationship indicated by your graph.

2. Construct a graph of acceleration versus mass for step (2). Determine the mathematical equation and state the general relationship indicated by your graph.

3. Carry out the calculations necessary in order to solve your specific problem.

Report

Prepare a formal written report, word processed, which contains the following sections:

Purpose
Procedure
Data Tables
Graphs & Calculations
Discussion