Today we talked about ch.2 Newtons 1st Law units for newtons is (N) force (f)- any push or pull on an object. - force causes motion (acceleration) -force can stop motion. (acceleration) - constant velocity =no acceleration a=0m/s2 =balanced (no) net force) forces Net force- all forces acting on an object added together 100n force 100n force up an down is the force constant velocity= force is 0 n
Mass (m)- amount of matter(stuff) in an object. bigger objects sometimes have more mass. smaller objects sometimes less mass Units: kilograms (kg) grams (g)
Inertia- (In-err-sha) the resistance to change in motion -inertia depends on mass the more mass the more inertia 100kg=1 x inertia 600kg=6 x inertia 200kg= 2 x inertia go to google advanced search type in newtons 1st law 1) go threw slide 2)blog animations and definitions by today.
Newtons First Law: "Law of Inertia" Its an object at rest tend to remain at rest. an object in motion tends to remain in motion at constant velocity unless acted upon by an unbalanced force.
Some examples are: 1) A car, it can be at same speed but have a different velocity. Velocity has a vector quantity-has the same magnitude and direction. 2) A box on a table, objects remain at rest because the force acting upon it, is is at rest. the downward force is balanced by an upward force. 3)A race car, a change in speed (magnitude), A change in direction, a change in magnitude and direction.
Newtons first law restates: the velocity of an object remains unchanged unless acted upon by an unbalanced force.
The equation you can use is Velocity equals the change in position divided by the change in time.
1) an object in motion continues in motion with the same speed and in the same direction unless: acted upon by an unbalanced force 2) 1st law of motion: every object in a state of uniform motion tens to remain in that state of motion unless an external force is applied to it. 3)No force is needed to maintain the motion. Instead, force is needed to stop the motion. These forces include friction (inclusive) of surfaces and air resistance and gravity ( hinders movement upwards) Gravitational force downwards applied 20(N) right Normal force upwards
Newtons 1st law- An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
1) 1st law of motion every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. 2) If an object moves to the right with an acceleration caused by 20N of force. It will maintain at the speed due to inertia unless stopped by friction. http://library.thinkquest.org/04apr/00533/Text-Only/Newton.swf
Newton's 1st law - An object at rest stays at rest. An object in motion stays in motion at a constant speed in a straight line unless acted on by an external, unbalanced force. -The site demonstrated this by a football at rest; then a foot kicking the football which is then in motion. - It also demonstrates external unbalance force with a person pushing a shopping cart. *It then says an object in motion stays in motion at constant speed in a straight line unless an external, unbalanced force acts on it. -It demonstrates a constant motion with a car. -It then demonstrates the external, unbalanced motion with wind slowing down the car. -It also shows the constant motion with a boat and the external, unbalanced motion with wind pushing the boat to pick up speed or accelerate. *An object in motion stays in motion at constant speed and in a straight line. -It shows this with an airplane and then external, unbalanced motion is showed with wind pushing the plane down. -This is also shown with a soccer ball and the external, unbalanced motion is shown with a finger pushing it up off the path for a second. That is the end of this website. =)
Newtons First Law: "The Law of Inertia". An object at rest tends to remain at rest, and an object in motion tends to remain in motion at constant velocity ( with the same speed and in same direction) unless acted upon by an unbalanced force.
Speed vs. Velocity: Velocity is a vector quantity-it has both magnitude and direction.
Objects at rest: an object remains at rest because the forces acting on it are balanced. not because there are no forces acting upon it. the downward force (mg) of gravity is balanced by an upward force of the table. (-mg)
Acceleration is the rate in any change in velocity: A change in speed (magnitude) A change in direction A change in both magnitude( speed) and direction.
Newton 1st Law (The law of inertia): When an object is left at rest, it maintains a constance velocity(velocity = 0 ) Uniform motion = ( no friction) Any Object in a state of uniform motion tends to remained in a motionless state unless force is applied to it.
In this slideshow a cube is at a zero velocity and demonstrates inertia when force is applied to the cube. It shows the cube from the center of the screen at rest when it is at zero velocity then shows the force being applied to it and moves the cube across the screen while explaining what is happening.
Toni Ayala http://www.nd.edu/~ysun/Yang/PhysicsAnimation/collection/newtonP.swf 1.) When a object is left alone, it actually always maintains a constant velocity. Velocity=0 2.)Every object in a state of uniform friction motion always tends to remain in the same state of motion unless an external force is applied to it. Uniform motion=no friction 3.)This video shows a cube being at zero velocity. It tends to show the inertia when force is put on the cube.As the cube is in the center at zero velocity it shows when the force is applied to it and moves the cube across the screen.
In this website it talks about Newtons 1st law. HIs law was that an object in a state of uniform motion tends to remain in that state of motion unless on an external force is applied to it. It also talks a little about inertia.
Is says that a force is needed to maintain movement. A force is only needed at the start to cause a change in velocity or an acceleration. No force is needed to maintain the motion. Instead force is need to stop the motion. Theses forces include friction and gravity.
An object at REST stays at REST an object in MOTION stays in MOTION at a constant speed in a straight line UNLESS acted on by EXTERNAL,unbalanced force.
For an example: If you roll a ball on the floor THEN THE OBJECT IN MOTION STAYS IN MOTION IN A STRAIGHT LINE. UNLESS you stop it then an EXTERNAL, unbalanced force acts on it.
Newton's 1st Law is an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. If the total force on an object is zero, then it has zero acceleration. Examples!
1) A cat at rest will tend to remain at rest, unless acted upon by some outside force then i wont have the same speed it would be acceleration.
2) If a ball does not move it is having the same speed unless some kicks the ball then the speed would be changing.
3) An man was polling himself up and down. The Newtons laws of motion concern and define forces.
A body at rest will remain at rest &a body in motion will remain in motion at a constant velocity (constant speed in a straight line) unless it's acted on by a net, external force. -an object at rest stays at rest unless an external, unbalanced force acts on it. * it shows a football at rest, then an external force(shoe) kicking it. * it shows a shopping cart at rest, then a man pushing it. - An object in motion stays in motion at a constant speed in a straight line unless an external, unbalanced force acts on it. * it shows a car in motion, but then the wind which is an unbalanced force slowing it down. * then it shows a boat and wind speeds it up.
I am married to Dr. Brandi Lane I have one sone R.J. and another son due in febrary. His name will be Elijah Craig Lane. i grew up in Clovis, CA. I went to high school in Girard, KS. I went to colege at Coe College in Cedar Rapids, IA. I have taught in Corcoran for six years.
Today we talked about ch.2 Newtons 1st Law
ReplyDeleteunits for newtons is (N)
force (f)- any push or pull on an object.
- force causes motion (acceleration)
-force can stop motion. (acceleration)
- constant velocity =no acceleration a=0m/s2
=balanced (no) net force) forces
Net force- all forces acting on an object added together
100n force 100n force up an down is the force
constant velocity= force is 0 n
Mass (m)- amount of matter(stuff) in an object.
bigger objects sometimes have more mass.
smaller objects sometimes less mass
Units: kilograms (kg) grams (g)
Inertia- (In-err-sha) the resistance to change in motion
-inertia depends on mass
the more mass the more inertia
100kg=1 x inertia 600kg=6 x inertia 200kg= 2 x inertia
go to google advanced search type in newtons 1st law
1) go threw slide
2)blog animations and definitions by today.
www.sciencegeek.net/Physics/Presentations/NewtonsLaws/NewtonsLaws.swf
ReplyDeleteNewtons First Law: "Law of Inertia"
Its an object at rest tend to remain at rest. an object in motion tends to remain in motion at constant velocity unless acted upon by an unbalanced force.
Some examples are:
1) A car, it can be at same speed but have a different velocity. Velocity has a vector quantity-has the same magnitude and direction.
2) A box on a table, objects remain at rest because the force acting upon it, is is at rest. the downward force is balanced by an upward force.
3)A race car, a change in speed (magnitude), A change in direction, a change in magnitude and direction.
Newtons first law restates: the velocity of an object remains unchanged unless acted upon by an unbalanced force.
The equation you can use is Velocity equals the change in position divided by the change in time.
http://library.thinkquest.org/04apr/00533/Text-Only/Newton.swf
ReplyDelete1) an object in motion continues in motion with the same speed and in the same direction unless: acted upon by an unbalanced force
2) 1st law of motion: every object in a state of uniform motion tens to remain in that state of motion unless an external force is applied to it.
3)No force is needed to maintain the motion. Instead, force is needed to stop the motion. These forces include friction (inclusive) of surfaces and air resistance and gravity ( hinders movement upwards)
Gravitational force downwards
applied 20(N) right
Normal force upwards
Newtons 1st law-
ReplyDeleteAn object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
1) 1st law of motion every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
2) If an object moves to the right with an acceleration caused by 20N of force. It will maintain at the speed due to inertia unless stopped by friction.
http://library.thinkquest.org/04apr/00533/Text-Only/Newton.swf
http://www.wisconline.org/objects/index_tj.asp?objID=TP1202
ReplyDeleteNewton's 1st law - An object at rest stays at rest. An object in motion stays in motion at a constant speed in a straight line unless acted on by an external, unbalanced force.
-The site demonstrated this by a football at rest; then a foot kicking the football which is then in motion.
- It also demonstrates external unbalance force with a person pushing a shopping cart.
*It then says an object in motion stays in motion at constant speed in a straight line unless an external, unbalanced force acts on it.
-It demonstrates a constant motion with a car.
-It then demonstrates the external, unbalanced motion with wind slowing down the car.
-It also shows the constant motion with a boat and the external, unbalanced motion with wind pushing the boat to pick up speed or accelerate.
*An object in motion stays in motion at constant speed and in a straight line.
-It shows this with an airplane and then external, unbalanced motion is showed with wind pushing the plane down.
-This is also shown with a soccer ball and the external, unbalanced motion is shown with a finger pushing it up off the path for a second.
That is the end of this website. =)
http://www.sciencegeek.net/Physics/Presentations/NewtonsLaws/NewtonsLaws.swf
ReplyDeleteNewtons First Law: "The Law of Inertia".
An object at rest tends to remain at rest, and an object in motion tends to remain in motion at constant velocity ( with the same speed and in same direction) unless acted upon by an unbalanced force.
Speed vs. Velocity: Velocity is a vector quantity-it has both magnitude and direction.
Objects at rest: an object remains at rest because the forces acting on it are balanced. not because there are no forces acting upon it. the downward force (mg) of gravity is balanced by an upward force of the table. (-mg)
Acceleration is the rate in any change in velocity:
A change in speed (magnitude)
A change in direction
A change in both magnitude( speed) and direction.
- Darron Walker
Newton 1st Law (The law of inertia): When an object is left at rest, it maintains a constance velocity(velocity = 0 )
ReplyDeleteUniform motion = ( no friction)
Any Object in a state of uniform motion tends to remained in a motionless state unless force is applied to it.
In this slideshow a cube is at a zero velocity and demonstrates inertia when force is applied to the cube. It shows the cube from the center of the screen at rest when it is at zero velocity then shows the force being applied to it and moves the cube across the screen while explaining what is happening.
http://www.nd.edu/~ysun/Yang/PhysicsAnimation/collection/newtonP.swf
Toni Ayala
ReplyDeletehttp://www.nd.edu/~ysun/Yang/PhysicsAnimation/collection/newtonP.swf
1.) When a object is left alone, it actually always maintains a constant velocity.
Velocity=0
2.)Every object in a state of uniform friction motion always tends to remain in the same state of motion unless an external force is applied
to it.
Uniform motion=no friction
3.)This video shows a cube being at zero velocity. It tends to show the inertia when force is put on the cube.As the cube is in the center at zero velocity it shows when the force is applied to it and moves the cube across the screen.
http://library.thinkquest.org/04apr/00533/Text-Only/Newton.swf
ReplyDeleteIn this website it talks about Newtons 1st law. HIs law was that an object in a state of uniform motion tends to remain in that state of motion unless on an external force is applied to it. It also talks a little about inertia.
Is says that a force is needed to maintain movement. A force is only needed at the start to cause a change in velocity or an acceleration. No force is needed to maintain the motion. Instead force is need to stop the motion. Theses forces include friction and gravity.
Newtons first law: (The law of inertia)
ReplyDeleteWhen an object is left alone it maintains a constant velocity(velocity=0)
Any object in a state of unit form motion unless an external force is
applied to it.
Uniform motion (No friction)
The box demonstrates the motion when remains at zero then the inertia is forced to the object. Then the box moves across the screen.
http://www.nd.edu/~ysun/Yang/PhysicsAnimation/collection/newtonP.swf
Joel Silva
ReplyDeletehttp://www.wisc-online.com/objects/index_tj.asp?objID=TP1202
Newtons first law of motion
(law of inertia)
An object at REST stays at REST an object in MOTION stays in MOTION at a constant speed in a straight line UNLESS acted on by EXTERNAL,unbalanced force.
For an example:
If you roll a ball on the floor THEN THE OBJECT IN MOTION STAYS IN MOTION IN A STRAIGHT LINE.
UNLESS you stop it then an EXTERNAL, unbalanced force acts on it.
http://www.animations.physics.unsw.edu.au/mechanics/chapter5_Newton.html
ReplyDeleteNewton's 1st Law is an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. If the total force on an object is zero, then it has zero acceleration.
Examples!
1) A cat at rest will tend to remain at rest, unless acted upon by some outside force then i wont have the same speed it would be acceleration.
2) If a ball does not move it is having the same speed unless some kicks the ball then the speed would be changing.
3) An man was polling himself up and down. The Newtons laws of motion concern and define forces.
http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/forces/sciber/newtons.htm
ReplyDeleteNewton's First Law
an object in motion well stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force.
Newton's First Law ( Law of Inertia)
ReplyDeleteA body at rest will remain at rest &a body in motion will remain in motion at a constant velocity (constant speed in a straight line) unless it's acted on by a net, external force.
-an object at rest stays at rest unless an external, unbalanced force acts on it.
* it shows a football at rest, then an external force(shoe) kicking it.
* it shows a shopping cart at rest, then a man pushing it.
- An object in motion stays in motion at a constant speed in a straight line unless an external, unbalanced force acts on it.
* it shows a car in motion, but then the wind which is an unbalanced force slowing it down.
* then it shows a boat and wind speeds it up.
http://www.wisconline.org/objects/index_tj.asp?objID=TP1202