Date Class
Name
Chapter 4 Directed Reading
Overview
Work and
Energy
Directions: Complete the concept map using the terms in the list below.
distance
mechanical energy potential energy
machines
motion
work
force
object
multiply
motion
9
tim
equa
Is
can be
made
RARIAr with
th
at
6
fore
0.
tropafer
00-00
00 0
O
Energ
duo
to
stored in
position
and
Copyright Glencow a division of The McGraw-Hill Companie te
motion
kinetic
energy
Work and Energy 15

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied