# Laws of Inertia: Definition & Formula

Instructions:

question 1 of 3

### In space, a spacecraft with its engines turned off will move with constant speed in the same _____.

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### 2. When a car stops suddenly, your body tends to keep moving ________.

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Taking a look at why having a stationary desk to do work is a good thing, this quiz and corresponding worksheet will help you gauge your knowledge of the laws of inertia. Topics you'll need to know to pass the quiz include understanding how a spacecraft will move in space as well as knowing why a book will not move by itself.

## Quiz & Worksheet Goals

Use this printable worksheet and quiz to test your knowledge of:

• How a spacecraft will move
• Why a book will not move by itself
• When a car stops suddenly
• What Newton's first law explains

## Skills Practiced

• Interpreting information - verify you can read information regarding why a book will not move by itself and interpret it correctly
• Reading comprehension - ensure that you draw the most important information from the related physics lesson

To learn more about why it's hard to change direction even when weightless in space, review the corresponding lesson on Laws of Inertia: Definition & Formula. This lesson will help you:

• Understand what inertia is
• Identify the importance of resistance to change in inertia
• Explain the characteristics of Newton's first law of motion
• Describe the role of mass in an object's inertia
• Appreciate the effects of inertia on objects
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