Mass, Weight, Density And Pressure Flashcards

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1
Q

What is the formula for weight? What are the equation’s units? Give an example of the formula rearranged.

A

W=mg
N=kg x kg/N

E.g.
m=W/g

W
G m

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2
Q

What is the formula for density? What units are represented by the formula? Give an example of the equation rearranged.

A

P=m/v
Kg/m3=(kg(/(kg/m3)

E.g.
m=pV
V=m/p

M
P v

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3
Q

What is the equation for pressure? What are the units used in the formula? Give an example of the equation rearranged.

A

P=f/a
Pa or N/m2 = N/m2
X 10000 = N/cm2

E.g.
F=PA
A=F/P

F
P A

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4
Q

How does pressure in liquids differ from pressure in other bodies?

A

1) pressure acts in all directions
2) liquids are incompressible, thus pressure is constant

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