WorksheetsFinal Exam
Total questions: 34
Worksheet time: 17mins
What is the SI unit for elastic energy?
Newtons
Watts
Kelvins
Joules
What are the SI units for heat?
Kelvins
Celsius
Joules
Watts
In the following equation, what does the k stand for? elastic energy = 1/2 kx²
kinetic energy
spring constant
elastic constant
momentum
Power is found by dividing work by what other physical quantity?
distance
mass
force
time
Power can be described as
how hard you push.
how fast you push.
how far you push.
how long you push.
The SI unit for power is
Watts
Joules
Newtons
Horsepower
In general, efficiency is defined as
output divided by input.
input divided by output.
output multiplied by input.
output minus input.
The largest source of electric power in the U.S. is
coal.
solar.
natural gas.
nuclear.
hydroelectric.
Thermal energy transfer is called
temperature difference.
heat difference.
temperature flux.
heat.
Which of the following coordinate systems is most common?
rectangular
cylindrical
spherical
polar
If an object is completely submerged in a fluid, its buoyant force is always equal to
the weight of the object.
the volume of the fluid displaced.
the weight of the fluid displaced.
the density of the fluid displaced.
Comparing average velocity and instantaneous velocity,
average velocity is not a vector quantity and therefore doesn’t include direction.
both terms sometimes refer to the same quantity.
the two terms never refer to the same quantity.
none of the above apply.
Period and frequency mean the same thing.
True
False
If you pull a pendulum back and let it go, the time required for it to return to approximately the same place from which it was released is called
the period.
the frequency.
the natural frequency.
the amplitude.
The “pitch” of a musical note is most closely associated with a sound wave’s
period.
amplitude.
wavelength.
frequency.
It takes 10 seconds to fill a ¼ liter jar with water from your kitchen faucet. What is the flow rate, in lpm, from the faucet?
1.5
4
10
40
A car traveling at a constant speed as it rounds a curve is not experiencing angular acceleration.
True
False
The time rate of doing work is called
energy
power
force
momentum
While driving down the highway you notice that your speedometer
reads 50 miles/hr and 80 km/hr. Which is faster, one mile per hour or
one kilometer per hour?
one mile per hour
one kilometer per hour
They are the same
Which of the following are U.S. Customary units?
gallons, yards, horsepower
barrels, Fahrenheit, Watts
acres, hectares, liters
cubie yards, Pascals, furlongs
Which of the following are fundamental SI units?
seconds, meters, liters
seconds, meters, grams
candela, kilograms, Kelvins
Celsius, seconds, kilograms
If you were to measure the cross section of a 2 x 4 you would find it
to be 38 millimeters wide by 90 millimeters tall. What are the numbers
"2 x 4" called?
Actual size
Nominal Size
Approximate Size
Rough Size
A unit of measure commonly used to quantify air flow is cfm. What
does cfm stand for?
Correct Fan Measurement
Cubic Fan Measurement
Cubic Feet per Minute
A unit of measure commonly used to quantify liquid flow is gpm.
What does gpm stand for?
Global Positioning Mechanism
Gallons per Minute
Greenhouse Pressure Measurement
While filling up your car with gasoline, you notice that it takes 2
minutes to dispense 15 liters of gasoline, What is the average flow rate
in lpm?
2
7.5
15
30
If you pull a pendulum back and let it go, the time required for it to
return to approximately the same place from which it was released is
called
the period
the frequency
the natural frequency
the amplitude
Length is one of the seven fundamental dimensions
True
False
Another name for a rectangular coordinate system is
polar coordinate system
cylindrical coordinate system
square coordinate system
Cartesian coordinate system
the second moment of area provides information about an object's...
ability to resist bending
ability to resist wear
ability to resist light
ability to reflect light
What is the total exposed surface area of the cubes?
6 m2
12 m2
36 m2
48 m2
Energy is a fundamental dimension
true
false
power is a fundamental dimension
true
false
Work is found by multiplying force by what other physical quality
distance
mass
power
time
What is the SI unit for kinetic energy?
Newtons
Watts
Kelvins
Joules
