Newton’s 3 Laws of Motion

Newton’s 1st Law of Motion(Law of Inertia)

An object at rest or in motion will stay at rest or in motion unless acted upon by an unbalanced force.

Newtons First LawStudy Jam

Newton’s 2nd Law of Motion

Force = mass x acceleration

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

• The second law shows that if you exert the same force on two objects of different mass, you will get different accelerations (changes in motion). The effect (acceleration) on the smaller mass will be greater (more noticeable).

• Heavier objects require more force to move the same distance as lighter objects.

Newton's Second Law

Study Jamz

Marble's Lab

Force and acceleration are directly proportional1. If force increases, acceleration increases2. If force decreases, acceleration decreases

Mass and acceleration are inversely proportional1. If mass increases, acceleration decreases2. If mass decreases, acceleration increases

Two objects of different masses require different amounts of force to accelerate at the same rate.

Newton’s 3rd Law of MotionAction-Reaction

For every action there is an equal and opposite reaction.

This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard.

Jet Pack Rocket ScienceStudy Jam

Newton's 3rd Law