Power
P=W/t
What is the power equation?
Page: 91
W=Fd
What is the work equation?
Page: 88
Machines make work easier by which two ways.
What is the size of a force acts, What is the distance the force acts, What is the direction of a force?
Page: 96
IMA = R wheel/ R axle
What is ideal mechanical advantage of wheel and axle?
Page: 107
Give three simple machines.
What is lever, What is wheel and axle, What is inclined plane, What is wedge, What is screw, What is pulley?
Page: 103
The rate at which work is done.
What is power?
Page: 91
Activity the meaning from Old English.
What is work?
Page: 87
Mechanical word origin comes from________.
What is Greek?
Page: 98
IMA = L in/ L out
What is ideal mechanical advantage of a lever?
Page: 105
Lever also known as.
What is fulcrum?
Page:104
The label in the power equation.
What is watts?
Page: 91
To move from one place to another.
What is transfer?
Page: 91
A crowbar is a machine. It makes work easier by changing a input force into a larger ________.
What is output force?
Page: 97
IMA = L/h
What is ideal mechanical advantage of an inclined plane?
Page: 108
Efficiency of a lever = ____
What is 95%?
Page:110
The label in the power equation for work.
What is joules?
Page:91
Work is the transfer of ______ that occurs when a force is applied over a distance.
What is energy?
Page: 91 or 87
A machine's efficiency is always less than.
What is 100%?
Page: 99
Two types of a inclined plane.
What is wedge and screw?
Page: 108
Slope surface that moves is called a.
What is wedge?
Page: 108
The label for time in the power equation.
What is seconds?
Page: 91
True or False. if false, why?
Is the force equal to the weight of a object?
What is true?
Page: 90
The middle of the door hinge.
What is oil layer?
Page: 99
True or False. If false, why?
A inclined plane is a bumpy surface?
What is False: An incline plane is a flat surface.
Page: 107
Pulley can change _________.
What is Force and direction?
Page: 109