Newton's First Law
What is the name for Newton’s first law?
Inertia
What is Newton's Second law formula?
F=ma (force=mass* acceleration)
What is Newton’s third law?
Every action has an equal and opposite reaction.
What is the force of gravity?
The Force of gravity on earth is 9.8N
What has more friction, a cotton ball, or the rubber sole of a shoe?
The rubber sole of the shoe.
What does the Law say about motion?
An object in motion stays in motion, and an object at rest stays in rest unless acted on by an outside force.
What measurement is Newton’s Second Law in?
It's measured in Newtons.
According to the third law, what will happen if you let go of an untied balloon?
It will go flying in the opposite direction.
What other law or laws are related to the force of gravity?
Newton's First and Second Law.
What is friction?
Friction is the resistance to motion of one object moving relative to another.
What is force?
The push or pull on an object.
Who invented the Laws of Motion?
Da Vinki (Issac Newton)
What happens when a rocketship gets launched into space?
As there is an equal and opposite reaction to every action, the rocketship thrusts upwards and launches into space.
Gravity pushes things which way on earth?
Down towards the center of the earth.
What makes friction differ depending on the surface?
The surface may differ in terms of how bumpy it is, on a molecular level.
What role does mass take with Newton’s First Law?
The more mass an object has the more inertia it will have.
What happens when you try and push a person?
If you put force on a person, the force will be put back on you. Because of the person's mass, you most likely will not have enough force to make him accelerate. If the person pushed you, you most likely would move in the direction of the force since he has more mass.
How does a game of tug-of-war work?
1 team pulls the rope towards themselves with a certain amount of force and the opposing team is also putting force on the rope. The same amount of force is applied from the ground to the people as they are putting on the ground
How does being on a different planet affect mass and why does gravity play an important role?
There are different forces and different gravitational poles on different planets
How does friction affect speed?
More friction= less speed
When was inertia discovered?
1687
Why do heavier objects require more force to move/ accelerate than a lighter object?
Something with more mass moving at the same acceleration as a lighter object would require more force to change its speed or change its direction. Our formula F=m x a is derived from Newton’s second law.
What happens if you push all of your weight onto a wall?
As the wall is stuck in place and there is an equal and opposite reaction to every action, your feet will slide back with the same amount of force you are pushing with.
Why is gravity important for us to do everyday tasks?
We need gravity so we don't float off into space.
What is one way friction can be reduced?
You can reduce friction by reducing the roughness between the surfaces.