Power Physics Problem

1 hp is equivalent to ____.

• 746 watts

• 764 watts

• 756 watts

Tags

NGSS.HS-PS3-3

The formula for computing power is _____.

• w x t

• w / t

• w + t

F = __

• m / a

• m x a

• m x d

• m / d

Tags

NGSS.HS-PS2-1

W = ___

• f x d

• f / t

• f / a

• f x a

W = 500 J

T = 25 seconds

P = ?

• 12500 W

• 20 W

• 525 W

A horse performs 15000 joules of work pulling a wagon for 20 seconds. What is the horse's power?

• 300 000 W

• 750 W

• 15020 W

A box is pushed across the floor for a distance of 5 meters with a force of 50 Newtons in 5 seconds. How much work and power is done?

(a)  

A student who weighs 500 Newtons climbed the stairs from the first floor to the third floor, 15 meters above, in 20 seconds. How much work did she do? What was her power?

(a)  

Power is _____

• the push or pull of an object

• the application of energy when an object moved

• is the rate of doing work

The standard metric unit of power is _____.

• Joules

• Newtons

• Watt