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Concept Of Pressure 9
Test Description: We are going to define pressure and how does pressure affected by force and area
Instructions: Answer all questions to get your test result.
1) A skier when uses skis leaves deep feet prints:
A
Less than that walking with sho
B
None of the above choices
C
More than that walking with shoes
D
Same as walking with shoes
2) The formula of pressure is:
A
P=SxF
B
P = F/A
C
P=S/F
D
A P= F - S
3) Theunit of pressure is :
A
Newton
B
Pascal
C
Dynes
D
Kg
4) Pascal is equals
A
N/mxm
B
mxm/N
C
N x mxm
D
N/m
5) : The pressure is:
A
: Proportional to the force applied Inversely proportional to cross sectional area
B
Proportional to the force applied
C
All the above choices
D
Inversely proportional to cross sectional area
6) It is easier to move on snow with skis because:
A
All the above choices
B
The weight of skier remains the same
C
The area of shoes is smaller than that of skis
D
The area of skis is greater than that of shoes
7) The deflation of tires of car in order to move on snow:
A
All the above choices
B
Keeping same weight of the car
C
Increases the area of contact with sand
D
Decreases the pressure of the car
8) As the head of the pin becomes sharp then it needs:
A
None of the above choices
B
High pressure to press it
C
No need to sharp it to decrease the pressure
D
little pressure to press it
9) Eiffel tower has a mass of 7300000 kgrests on four feet then its pressure is highest when the area of each foot is
A
25 square meter
B
5 square meter
C
20 square meter
D
10 square meter
10) the cutting ability of a scissors increases:
A
as its edges becomes thicker
B
none of the above
C
as its edges becomes brighter
D
as its edges becomes thinner
*select an answer for all questions
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