newtons first law
what is newtons first law?
an object in motion stays in motion
what is Newton's second law?
an object accelerates when a net force acts on it
what is newtons third law
For every action, there is an equal and opposite reaction.
What is Isaac Newton known for?
Isaac Newton is known as the “Father of Physics”. His formulation of the three laws of motion.
what is friction?
the action of one surface rubbing against another surface
what is acceleration?
acceleration is the change in velocity divided by the time.
what is a force
a force is a push or pull on an object
who was aristotle and what was his claim?
he was a philosopher in the 24,000’s and his claim was that objects need a force to keep moving at a constant velocity.
is a force needed to keep an object in motion?
a force is NOT needed to keep an object in motion.
find the force : Sarah rides a bike at an acceleration of 5m/s 2 and has a mass of 80kg. How much force is Sarah putting to her bike to move at this rate? (Hint: F=MxA)
400 m/s
How are rockets launched into space? (Use Newton's 3rd law)
Newton's 3rd law proves that when a rocket pushes out fire with an amount of force, the rocket will move in the opposite direction, with the same amount of force. This causes the end result to shoot up into the air.
what was gallelio known for
He helped conclude Newton's belief that objects in motion tend to stay in motion. He also was the first to imagine a world with NO friction.
what is newton's first law also known by?
law of inertia
what does the “~” symbol mean ?
it means proportional to
what is a net force?
a net force is a combination of if all the forces acting on an object
what is inertia?
inertia is the tendency of an object to resist any change in motion. It also means lazy in latin
Sanvi is controlling a 50,000 kg helicopter which is accelerating at a rate of 4m/s 2. How much force does Sanvi put to move at that rate? ( F=m x a)
200,000 N
what is net force represented by?
net force is represented by the letter F