You don't weight what your weight scale tells you

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You DON’T weight what your weight scale tells you 98 kg LIAR ! acarloto@gmail. com

description

The difference between weight and mass.

Transcript of You don't weight what your weight scale tells you

Page 1: You don't weight what your weight scale tells you

You DON’T weight

what your weight scale tells you

98 kg

LIAR !

[email protected]

Page 2: You don't weight what your weight scale tells you

What your weight scale gives you is not

your weight, is your MASS

98 kg

mass is measured in kilograms (kg)

WEIGHT SCALE MASS SCALE

Page 3: You don't weight what your weight scale tells you

To measure your weight you should use a

DYNAMOMETER

weight is measured in Newtons (N)

??

960 N

Page 4: You don't weight what your weight scale tells you

Weight and mass are RELATED but are not

the same thing

W = mxgweight (N)

mass (kg)

gravity acceleration(m/s2)

Page 5: You don't weight what your weight scale tells you

Mass is a measure of the amount of

MATTER in a body

matter has mass and occupies space

Page 6: You don't weight what your weight scale tells you

Mass is an INTRINSIC characteristic of the

body

m = 98 kg m = 98 kg

mass doesn’t depend on the circumstances of the body

Page 7: You don't weight what your weight scale tells you

Weight is a gravitational FORCE exerted

by a near planet or star

W = 960 N W = 160 N

Planets with more mass attract with greater forces

Page 8: You don't weight what your weight scale tells you

Weight is a VECTORIAL QUANTITY - has a magnitude (N) and a direction

Page 9: You don't weight what your weight scale tells you

When g changes, W also changes

m = 0,1 Kgg = 1,6 m/s2

g = 9,8 m/s2

W = 0,1 x 1,6 = 0,16 N

W = 0,1 x 9,8 = 0,98 N

Page 10: You don't weight what your weight scale tells you

On Earth, your weight of 960 N is the

weight of a body with a 98 kg mass

98 kg

Don’t worry, under 100 kg is all right

[email protected]


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