1
Q
What is the unit for power?
A
W or Watt
2
Q
It is the rate at which work is done.
A
Power
3
Q
What are the conversion numbers in power?
A
1 Watt expended in 1 Joule
1 work expended in 1 second
4
Q
Conversion of horsepower to watts.
A
1 horsepower (hp) = 750 Watts
5
Q
What are the two types of power?
A
Instantaneous power and average power
6
Q
It is the rate or force does work when time approaches zero.
A
Instantaneous power
7
Q
It is the amount of work done in a given time.
A
Average power
8
Q
What is the formula for power?
A
P = W/t
9
Q
What are the two other formulas that can be derived from the formula of power?
P = W/t
A
W = P/t
t = P/W
10
Q
What are the other formulas that we can use in calculating the power?
A
P = Fv
P = E/t
P = Fv(cos angle)
Physics (Lesson 2)
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