Q1. Which of the following should be... [FREE SOLUTION]

Chapter 2: Q1. (page 42)

Which of the following should be a part of solving any problem in physics? Select all that apply:
Read the problem carefully.
Draw a picture of the situation.
Write down the variables that are given.
Think about which physics principles to apply.
Determine which equations can be used to apply the correct physics principles.
Check the units when you have completed your calculation.
Consider whether your answer is reasonable.

Short Answer

Expert verified

All of these steps are required in the given order.

Step by step solution

Step 1. Strategy for solving problems in physics

The problem-solving strategy in physics includes four major steps 鈥� focus on the problem, describe the physics used, execute the plan, and evaluate the solution.

All these steps are described below.

Step 2. Focusing on the problem

First, establish a clear image of the problem in your mind.
Read the statement carefully and visualize the situation by drawing diagrams.
Draw the objects and label them. If needed, also depict their motions and interactions.

Step 3. Description of the physics used

Name and define the symbols for all physical variables.
Identify the target variables (the quantity to be determined).
Construct specific equations using relevant physics principles.

Step 4. Execution of the plan

For ease of reference, number each equation.
First, solve the equations algebraically and cancel out the unknown quantities, if any.
Substitute the numerical values in the final equation.
Check whether the units of the values are consistent.