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Straight Quote by Stephen Hawking

“It also meant that whenever a body is not acted on by any force, it will keep on moving in a straight line at the same speed.” quote by Stephen Hawking
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““It also meant that whenever a body is not acted on by any force, it will keep on moving in a straight line at the same speed.””

Stephen Hawking

About This Quote

Source Book: A Brief History of Time, 1988

Describes Newton's first law: an object in motion stays in motion unless acted upon.

In simple terms: Objects keep moving unless something stops them.

Key Takeaway

Recognize forces that alter motion.

Themes

physics law inertia

Mood

educational scientific

Type

physics explanatory

When to use this quote

  • engineering design
  • space travel
  • vehicle safety
  • sports training
  • education curricula

Key Concepts

Newtonian mechanics predictive modeling

Questions to Reflect On

  • What forces act on objects in everyday life?
  • How can we harness inertia beneficially?
A Different Perspective

Real-world factors often complicate ideal motion.

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