chapter4_151

Essentials of College Physics (with CengageNOW 2-Semester and Personal Tutor Printed Access Card)

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework #2 Chapter 4 Conceptual: # 6 Problems: 16,20,28,34,42 Chapter 5 Conceptual: # 8 Problems: Exercise 5.1 – 5.10 (Exercises under each  examples) Chapter 6 Conceptual: # 6 Problems: Problems: Exercise 6.1 – 6.7 (Exercises under  each examples)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 4 The Laws of Motion
Background image of page 2
Classical Mechanics Describes the relationship between the  motion of objects in our everyday world and  the forces acting on them Conditions when Classical Mechanics does  not apply very tiny objects (< atomic sizes) objects moving near the speed of light
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Forces Usually think of a force as a push or pull Vector quantity May be a  contact force  or a  field force Contact forces result from physical contact  between two objects Field forces act between disconnected objects Also called “action at a distance”
Background image of page 4
Contact and Field Forces
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Fundamental Forces Types Strong nuclear force Electromagnetic force Weak nuclear force Gravity Characteristics All field forces Listed in order of decreasing strength Only gravity and electromagnetic in mechanics
Background image of page 6
Newton’s First Law An object moves with a velocity that is  constant in magnitude and direction,  unless acted on by a nonzero net force The net force is defined as the vector sum  of all the external forces exerted on the  object
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
External and Internal Forces External force Any force that results from the interaction  between the object and its environment Internal forces Forces that originate within the object itself They cannot change the object’s velocity
Background image of page 8
Inertia Is the tendency of an object to continue  in its original motion
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Mass A measure of the resistance of an  object to changes in its motion due to a  force Scalar quantity SI units are kg
Background image of page 10
The acceleration of an object is directly  proportional to the net force acting on it and  inversely proportional to its mass.  
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 39

chapter4_151 - Homework#2 Chapter4 Chapter5 Conceptual#6...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online