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Terms in this set (17)
f= 5 newtons
w= 75 joules
_____ is done when an object moves through a distance because of a _____ acting upon the object.
WORK is done when an object moves through a distance because of a FORCE acting upon the object.
When calculating work, you should use the formula; work=force X _____
When calculating work, you should use the formula; work=force X Distance
The SI unit for work is the ______. It is represented by the letter_.
The SI unit for work is the Joules. It is represented by the letter J.
w= 500 joules
t= 25 seconds
p= 25 watts
t= 20 seconds
p= 170 watts
_____ is the rate at which work is done?
POWER is the rate at which work is done?
When calculating power, you should use the formula P= ____ divided by ____. In this formula, "P" stands for power, _ stands for work, and _ for time.
When calculating power, you should use the formula P= WORK divided by TIME. In this formula, "P" stands for power, W stands for work, and T for time.
The SI unit for power is the ____.
The SI unit for power is the watt.
Tools we have been using in class
spring scales, knife switches,
parts of the motor
armature= The armature can be on either the rotor or the stator. Field: The magnetic field component of an alternator, generator, dynamo or motor. The field can be on either the rotor or the stator and can be either an electromagnet or a permanent magnet.
shaft= a drive shaft leading to a final drive in the rear axle. When the vehicle is stationary, the drive shaft does not rotate.
coil of wire=????
commutator= To keep the torque on a DC motor from reversing every time the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point.
watt= newton-meter per second
1 watt= 1 newton-meter per 1 second
power equals work over time
Power(W)= WORK (N-m)
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