newton's laws of motion notes Flashcards
What is a Scientific Law?
Statements accepted as 100% true based on all known laboratory investigations
Examples include gravity causing things to fall toward Earth.
How do Scientific Laws change over time?
They do not change over time.
What is a Scientific Theory?
Statements accepted as currently being true based on evidence, which can change over time
Theories evolve as more evidence is obtained.
What does Newton’s First Law of Motion state?
An object at rest remains at rest unless acted upon by an unbalanced force
An object in motion continues in motion unless acted upon by an unbalanced force.
What is the practical implication of Newton’s First Law regarding seat belts?
You should always wear your seat belt in a car to prevent injury during sudden stops.
What does Newton’s Second Law of Motion state?
Acceleration is produced when a force acts on a mass; greater mass requires greater force
The equation is: Force = Mass x Acceleration (F = m x a).
Fill in the blank: According to Newton’s Second Law, heavier items require _______ to move them.
more force
What does Newton’s Third Law of Motion state?
For every action, there is an equal and opposite reaction.
Provide an example of Newton’s Third Law of Motion.
A rocket launching, where the rocket pushes against the Earth while moving forward.
