Newton's 1st Law
Definition of Newton's 1st Law
An object at rest remains at rest unless acted on by an outside force.
Definition of Newton's 2nd Law of Motion.
The force on an object = its mass x its acceleration.
Definition of Newton's 3rd Law of Motion.
Every action has an equal and opposite reaction.
Who came up with these laws?
Isaac Newton
What law is in place if you are riding a skateboard and hit something (like a curb) with the front wheels?
1st law.
What law is in place if you try and push someone and they push back?
2nd law.
A real life example of Newton's 3rd Law.
When you jump, your legs apply a force to the ground, and the ground applies an equal and opposite reaction force that propels you into the air.
Who was Isaac Newton?
An english mathematician and physicist.
How does Newton’s 1st law affect a game of Tug of War?
The rope will stay in the same place until the tugging starts (a new force is introduced).
What two things affect Newtons 2nd Law?
mass and acceleration.
Why does the 3rd Law not cancel out?
Because they act on different objects.
What did Newton also discover?
Gravity
What is another name for Newtons 1st Law of Motion?
Law of Inertia.
How is Newton's second law used in everyday life?
Riding a bicycle.
Why do we say that forces only occur in pairs?
Every action has a reaction counterpart.
When did these laws become in place?
1686.
True or False: Objects moving around the Earth must have a force acting on them.
True
What does Newton's 2nd Law show?
the relationship between forces and motion.
A woman of mass 50 kg sits on the floor. She exerts a force on the floor of...
50g N
How old was he when he discovered these laws?
23 years old.