Newtons Laws
Newton's 3rd Law
For every action there is an equal and opposite reaction.
Speed in a given direction.
Velocity
The amount of matter in an object.
Mass
How is Newton's second law directly demonstrated by a catapult? (Part 1)
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Why should bob wear his seat belt when riding in a car? (Must use science term)
Bob and the car have their own separate inertia
Newtons 2nd Law
F = M x A. The acceleration of an object is directly related to the net force.
A push or a pull on an object.
force
A force between surfaces that slows motion.
Friction
How is Newton's second law directly demonstrated by a catapult? (Part 2)
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What are the 3 forces at play that stop a rolling ball?
Friction, Gravity, Air Resistance
Newtons 1st Law
An object in motion stays in motion, and an object at rest stays at rest, unless acted on by an external force.
The total force acting on an object after all individual forces are combined
A force that pulls objects toward each other
Gravity
What is the connection between bob's inertia causing him to fly out of a car, and Newton's 1st law as it pertains to a catapult?
Like the car and bob, when the catapult arm comes to a hault, the projectiles inertia is what carries it forward
What happens to an object when the net force acting on it are 0, or balanced?
It remains at rest
According to Newton's Second law, what relationship exists between force and acceleration? What relationship exists between mass and acceleration?
The greater the force, the great the acceleration (proportionally). The greater the mass, the lesser the acceleration (inversely proportional).
The equal and opposite force responding to an action
Resistance
Anything that slows down or opposes motion.
Where on a catapult is Newton's 3rd law being demonstrated and how is this connected to the catapult breaking?
When the parts crash into each other, force is returned, and if the arm is not strong enough it will break
Give an example of unbalanced forces causing a change in motion. Specifically what forces are causing motion in your example?
anything that moves
Which of Newton's 3 laws is directly connected to inertia and how?
Law 1. Since inertia is an objects resistance to change in motion, it refers to how easy or hard it is for an external force to start or stop an object motion.
Balanced Forces
Forces that are equal in size and opposite in direction, producing no change in motion.
Potential Energy
Energy stored in an object because of its position or state
When looking at a target being hit by a projectile, where and how, specifically, can we see Newton's 3rd law being demonstrated?
2 things crashing into each other....
When you drop a bouncy ball from a certain height, why is it that the ball does not bounce quite as high as the distance you dropped it from?
on the way down it is working with gravity, on the way up it wors against it.