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Worksheets[Physics] Chapter Force & Pressure (Part1)
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
How do you Calculate Pressure
a)
Force(N)/Area(m2)
b)
Force(kg)/Area(mi2)
c)
Area(m2)/Force(N)
2.
Why won't you sink in mud if you wear boots?
a)
Because the surface area is larger creating less pressure.
b)
Has air in it to keep you floating.
c)
Because the mud won't want you.
3.
What is pressure?
a)
The amount of force exerted on a surface
b)
The surface area of an object
c)
The weight of an object
4.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
5.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
6.
Pressure can be measured in Pascals (Pa) or Newtons per square metre.
1 Pa = 1N/m2
1 Pa = 1N/m2
a)
True
b)
False
7.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
8.
Pressure decreases when the surface area over which a force is applied increases
a)
True
b)
False
9.
Which of the statements is true?
a)
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
b)
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
c)
The bottom of the shoe exerts the same pressure as the bottom of the boot.
10.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
11.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
12.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)
Pressure
13.
Army tank tracks are useful for travelling through the mud because..
a)
they decrease the force the vehicle exerts on the ground
b)
they increase the force the vehicle exerts on the ground
c)
they decrease the pressure the vehicle exerts on the ground
d)
they increase the pressure the vehicle exerts on the
ground
14.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
A calf with big feet
d)
A calf with small feet
15.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
16.
Convert 10 kg to Newtons
a)
0.098 N
b)
4.5 N
c)
100 N
d)
98 N
17.
The pressure resulting from a force of 50 N exerted over an area of 5 m2 is
a)
10 N
b)
0.1 N
c)
10 N/m2
d)
0.1 Pa
18.
If a piston has a face of 2cm2 and a force of 5N is applied what is the total pressure?
a)
2.5N/cm2
b)
0.4N/cm2
c)
10N/cm2
d)
10N/m2
19.
If a pressure of 100N/m2 is applied to a piston with an area of 1.5m2 what is the total force?
a)
150N
b)
75m2
c)
0.015N
d)
50N
20.
Which of the following would increase the pressure?
a)
Increase the force
b)
increase the area
c)
Decrease the force and area
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