WorksheetsPhysical Science, Thursday Bell Ringer Quiz, 5.10.18 (graded)
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)
Pressure
2.
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
3.
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
4.
Pressure is measured in what units
a)
Newtons
b)
m/s
c)
Pascals
d)
Moles
5.
True or false:
Pressure depends on depth
Pressure depends on depth
a)
true
b)
false
6.
A force is applied in a closed container, the pressure increases the same amount. EX: squeezing a water bottle or toothpaste
a)
Archimede's Principle
b)
Pascal's Principle
c)
Bernoulli's Principle
7.
What principle is this hydraulic press showing?
a)
Archimedes' Principle
b)
Bernoulli's Principle
c)
Pascal's Principle
d)
Principle Testa
8.
What system used in many applications like forklifts or jacks works on Pascal's principle?
a)
hydraulics
b)
sprockets
c)
widgets
d)
brakes
9.
When you increase your depth under water, the water pressure on your body
a)
increases
b)
decreases
c)
stays the same
10.
What is the equation used to calculate density?
a)
density=volume/mass
b)
density=force/area
c)
density=mass/volume
d)
density=force/volume
11.
In underwater pressure, as the depth increases, so does the pressure.
a)
True
b)
False
12.
Fluids can also include__ and__.
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
13.
According to Bernoulli, as the speed of a fluid increases the pressure exerted by that fluid ___
a)
Decreases
b)
Disappears
c)
Increases
d)
Stays the same
14.
If you blow air between these two balloons, the pressure between the balloons would_________.
a)
Increase
b)
Decrease
c)
Stay the same
15.
Fluids tend to move from an area of ______pressure to an area of ______pressure
a)
high, low
b)
low, high
c)
fluids don't flow
16.
When drinking soda from a straw, the soda rises up the straw because....
a)
you lower the pressure in the straw and the atmosphere pushes the soda up
b)
you raise the pressure in the straw and the atmosphere pushes the soda down
17.
What is Archimedes' principle?
a)
The difference in pressure results in an upward force on an object immersed in a fluid.
b)
Force divides by area
c)
The buoyant force on an object is equal to the weight of the fluids displaced by the object.
d)
Mass divided by volume.
18.
What is buoyant force?
a)
Anything that takes up space and has mass.
b)
Matter that has a definite volume, but not a definite shape.
c)
Mass divided by volume.
d)
If the force is equal to the weight of an object, the object will float.
19.
Pressure =
a)
force x area
b)
area / force
c)
force / area
d)
force / area2
20.
How can you predict whether an object will float or sink in a fluid?
a)
By comparing mass
b)
By comparing weight
c)
By comparing densities
d)
By comparing height
100 %
