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Worksheet explaining Newton's First Law of Motion using a cyclist example.

A worksheet titled "Keep On Moving" featuring a cyclist on a bicycle between two trees, with a question about Newton's First Law of Motion.

A worksheet titled "Keep On Moving" featuring a cyclist on a bicycle between two trees, with a question about Newton's First Law of Motion.

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Show Answer Key & Explanations Step-by-step solution for: Newtons Laws of Motion Worksheets - 15 Worksheets Library
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Since both ExplainAnswer and TeachTopic are false, we skip those sections.

We also skip GeneratePractice because it’s false.

That means we only provide the Final Answer, which must be a clear, simple explanation in the student’s own words — as requested by the worksheet prompt.

But wait — the instruction says:
> CRITICAL: First work through the problem step by step, check your calculations carefully, and ONLY THEN provide the final answer.

Even though the options are false, I still need to reason through the question before giving the final answer.

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Let’s think about Newton’s First Law:

Newton’s First Law (also called the Law of Inertia) says:
→ An object at rest stays at rest.
→ An object in motion stays in motion — unless something pushes or pulls it to stop.

In this case, the cyclist stopped pedaling — so no more force is being added.
But the bike doesn’t stop right away. Why?

Because the bike was already moving. And according to Newton’s First Law, it will keep moving forward — unless something like friction, air resistance, or brakes slows it down.

So even without pedaling, the bike keeps going because of inertia — its tendency to keep doing what it was already doing (moving forward).

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Final Answer:
The bicycle keeps moving forward because of Newton’s First Law — an object in motion stays in motion unless acted on by a force. Even though the cyclist stopped pedaling, the bike was already moving, so it continues until forces like friction or air resistance slow it down.
Parent Tip: Review the logic above to help your child master the concept of law of inertia worksheet.
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