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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
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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