Physics Worksheet - Maria Regina Boy'S Secondary College Page 4
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94. This question is about forces.
Fill in with the correct force from the ones shown below. Not all forces need to be used.
However, the same force can be used more than once.
●friction
●air resistance
●weight
●lift
●engine force
●upthrust
●tension
●reaction
B
F
E
A
D
H
G
C
A = _________________________
E = _________________________
B = _________________________
F = _________________________
C = _________________________
G = _________________________
D = _________________________
H = _________________________
[8]
5. This question is about the pressure exerted by a person.
a) Miguel needs to find the pressure he exerts when standing on one leg. First he
needs to find his mass by using ____________________________. To change
his mass to weight he has to use the formula ____________________. Then
he has to find the area of his foot by using a ______________ paper and count
the number of 1 cm squares.
[3]
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b) Miguel finds that his weight is 640 N. The area of one foot is 160 cm
.
Calculate the pressure he exerts in:
2
(i) N/cm
.
________________________________________________________________ [1]
(ii) pascals (Pa)
_______________________________________________________________
_______________________________________________________________ [2]
c) Underline the correct answer:
If Miguel stands on two feet he would exert (more, less) pressure on the floor as
area of contact and pressure are (directly, inversely) proportional.
[2]
Page 4 of 9
Physics Half yearly exam 2014 – Track 2 - Form 3
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