newton’s laws of physics. isaac newton was an english physicist and mathematician who is widely...
TRANSCRIPT
![Page 1: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/1.jpg)
Newton’s Laws of Physics
![Page 2: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/2.jpg)
Isaac NewtonWas an English physicist and mathematician who is widely recognized as one of the most influential scientists of all time and as a key figure in the scientific revolution.
![Page 3: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/3.jpg)
1. An object at rest stays at rest, an object in motion stays in motion unless an external force is applied
(tape on table flat, then roll it)
![Page 4: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/4.jpg)
2. The force is directly proportional to the acceleration and the mass F=ma
(a 2 000kg car to accelerate at 2m/s2 requires what force? F-newtons, m-kg, a-m/s2)
![Page 5: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/5.jpg)
3. Every action has an equal and opposite reaction
(push the wall and fall back)
![Page 6: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/6.jpg)
All three involve forcesTypes of Forces:
Gravitational- pull from Earth
Magnetic- pull or push from a magnet
Electrical- Static Electricity (hair standing up)
Mechanical- push or pull by touching
Fictional- for against motion
Tensile- tightening
Compressive- pushing together
Rotational- turning
![Page 7: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/7.jpg)
Forces have two parts: magnitude and direction
Magnitude- how much of the force is there
Direction- in which way is the force going
![Page 8: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/8.jpg)
Difference between mass and weight
Weight- force of the mass
Mass- how much matter is in the object
Weight = 9.8 x mass
![Page 9: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/9.jpg)
Gravity
Acceleration of Gravity
g = 9.81 m/s2
![Page 10: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/10.jpg)
FrictionStatic Friction- what prevents an object from
moving
Sliding (kinetic) friction- what slows something down once it's moving.
Static friction is greater- that's why we have ABS breaks
We hate sliding friction, it makes us use more force to move things- we use lubricants to reduce the kinetic friction.
![Page 11: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/11.jpg)
![Page 12: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/12.jpg)
![Page 13: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/13.jpg)
Newton’s 2nd Law of Motion
https://www.youtube.com/watch?v=nO7XeYPi2FU
https://www.youtube.com/watch?v=iwP4heWDhvw
![Page 14: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/14.jpg)
Units of measurementForce = N (Newtons)
Mass = kg (kilograms)
Acceleration = m/s2 (meters per second squared)
![Page 15: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/15.jpg)
Example questionWhat net force is required to accelerate a bike at a rate of 3 m/s2 if the bike has a mass of 2,000kg?
F =
m =
a =
![Page 16: Newton’s Laws of Physics. Isaac Newton Was an English physicist and mathematician who is widely recognized as one of the most influential scientists of](https://reader035.vdocument.in/reader035/viewer/2022062300/56649dfe5503460f94ae66b7/html5/thumbnails/16.jpg)
HomeworkPage 39: questions 1, 3, 4