Work-Energy Theorem applied to falling coin
Your school eg. MHS
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Your Name, Surname and Grade
Your answer
1) Comparing a heavy coin with a light piece of chalk and ignoring the negligible air resistance...
2 points
The heavy coin falls faster than the light chalk
the light chalk falls faster than the heavy coin
both fall together at the same velocity
from the information given we cannot tell how they would fall
2) The equations of motion...
2 points
None of them include m (mass)
some equations of motion contain m
3) Using the following formula and allowing a coin to fall for 1m, its velocity after falling 1 m (in m/s) is...
2 points
1
2
2,2
4,43
4) The following formula can also be written...
2 points
Option 1
Option 2
5) The Wnet done on a falling coin (projectile) is equal to...
2 points
change of displacement
change of velocity
Option 3
Option 4
6) The Work-Energy Theorem equation for a falling coin resolves into...
2 points
Option 1
Option 2
Option 3
Option 4
7) Because the Work-Energy Theorem for a falling object resolves into the following formula, the formula gives the same final velocity answer for any mass, because...
2 points
mass is negligible in the case of a coin
both sides of the equation have the same m which therefore cancels out
as the mass increases, so does the final velocity, and so the two cancel out
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