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Principles of Engineering Semester Final

Total questions: 89

Worksheet time: 1hrs 20mins

Name
Class
Date
1.
Which is not a type of simple machines?
a)
spring
b)
screw
c)
pulley
d)
wedge
2.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
screw
d)
wheel and axle
3.
What is the fixed point upon which a lever rotates?
a)
fulton
b)
fulcrum
c)
furmen
d)
falcon
4.
What type of simple machine is found on the floor of a bathtub?
a)
screw
b)
inclined plane
c)
wedge
d)
pulley
5.
A screw is made up of _________ wrapped around a post or rod.
a)
treads
b)
springs
c)
threads
d)
strings
6.
What type of simple machine is shown here?
a)
Pulley
b)
Wheel and Axle
c)
Lever
d)
Wedge
7.
Something similar to a see-saw that can lift an object.
a)
Wedge
b)
Screw
c)
Lever
d)
Wheel and Axle
8.
What is the formula for calculating work?
a)
F = w/d
b)
w= f x  d
c)
d = w/f
d)
ma = Fr/Fe
9.
What is the formula for calculating mechanical advantage?
a)
F = w/d
b)
ma = Fr/Fe
c)
ma = F x D
d)
ma = M + A
10.
What is the mechanical advantage of a simple machine if a force of 15 newtons lifts an object weighing 60 newtons?
a)
2
b)
45
c)
.25
d)
4
11.
If 200 joules of work was done to move an object with a force of 50 newtons, how far was the object moved?
a)
2 meters 
b)
45 meters 
c)
4 meters 
d)
150 meters 
12.
How much work is done in moving a box 20 meters, using a force of 25 newtons?
a)
500 meters
b)
500 joules
c)
45 joules
d)
5 meters
13.
It is possible to reach absolute zero
a)
true
b)
false
14.
Thermal energy always moves:
a)
From a high temperature object to a lower temperature object.
b)
From a lower temperature object to a higher temperature object.
c)
From an object with lower kinetic energy to an object with higher kinetic energy.
d)
From an object of higher mass to an object of lower mass.
15.
The temperature of a glass of cold water will eventually...
a)
Match the temperature of the surrounding environment.
b)
Always be colder than the surrounding environment.
c)
Become warmer than the surrounding environment.
d)
Never change temperature.
16.
The first law of thermodynamics states that energy is
a)
created
b)
destroyed
c)
conserved
d)
created and destroyed
17.

Do molecules generally move faster at 45 C or 106 C?

a)

45 C because molecules have more energy than in 106C

b)

106 C because molecules have more energy than in 45C

c)

106 C because molecules have less energy than in 45C

d)

45C because molecules have less energy than in 106 C

18.

When you place the metal in boiling water, heat flows from the _________ to the _______.

a)

metal to the boiling water

b)

bottom of the metal to the top half of the metal

c)

bottom of the water to the top of the water

d)

boiling water to the metal

19.

YOU HAVE TIME!

How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C)

a)

20 X (25-15) =70 J

b)

20 X .385 X (25-15)= 77 J

c)

20 X .385 X (15-25)= 62 J

d)

20 X .385 X (15-0)= 77 J

20.
What do we call the relationship between thermal energy, heat and work?
a)
Closed System
b)
Entropy
c)
Conductors
d)
Thermodynamics
21.
“When thermal energy is converted into work, some thermal energy is always transferred to the surroundings.”
a)
True
b)
False
22.

The equivalent resistance in this circuit is

a)

100 ohms

b)

450 ohms

c)

400 ohms

d)

30 ohms

23.

A 2.0-ohm resistor and a 4.0-ohm resistor are connected in series with a 12-volt battery. If the current through the 2.0-ohm resistor is 2.0 amperes, the current through the 4.0-ohm resistor is

a)

1.0 A

b)

2.0 A

c)

3.0 A

d)

4.0 A

24.

The total current through this circuit is

a)

0.02 amps

b)

0.09 amps

c)

50 amps

d)

9 amps

25.

The voltage dropped across the 300 ohm resistor is

a)

6 V

b)

9 V

c)

2 V

d)

30 V

26.

What is a circuit with several paths for electricity to flow?

a)

conductor

b)

series circuit

c)

parallel circuit

d)

open circuit

27.

What is a circuit that only has ONE path for electricity to flow?

a)

series circuit

b)

closed circuit

c)

parallel circuit

d)

light bulb

28.

What is this called?

a)

Jumper wires

b)

Circuit

c)

Battery leads

d)

Breadboard

29.
Which leg of the LED is the positive side? 
a)
The longer one
b)
The shorter one
c)
There is no positive side
d)
They are both positive, I'm positive of it. 
30.

What will happen if you forget to include one of these in the circuit?

a)

The current will go too fast

b)

The LED will burn out

c)

The circuit will overload

d)

All of the above

31.

How do I stop my LEDs from burning out?

a)

Apply less voltage

b)

Use a resistor

c)

Don't leave it on for too long

d)

Use a switch

32.
Using the picture, which part is being shown?
a)
bump sensor
b)
limit switch
c)
potentiometer
d)
line tracker
33.
Using the picture, which part is being shown?
a)
cortex
b)
motor
c)
limit switch
d)
battery pack
34.
Using the picture, which part is being shown?
a)
bump sensor
b)
potentiometer
c)
limit switch
d)
line tracker
35.
Using the picture, which part is being shown?
a)
battery pack
b)
cortex
c)
motor
d)
power
36.
What is the name of this VEX electrical system part?
a)
Bumper Switch
b)
Limit Switch
c)
Potentiometer
d)
Line Tracker
37.
What is this VEX Robot part?
a)
Bump Switch
b)
Wheel
c)
Sprocket Gear
d)
Axel
38.
What is this VEX Robot part?
a)
Vex Wheel
b)
Vex Spacer
c)
Vex Collar Shaft
d)
Vex Spur Gear
39.
Using the picture, which part is being shown?
a)
plastic collars
b)
screws
c)
nuts or bolts
d)
metal collars
40.

Which engineering field is this....


Design, develop, and test aircraft and spacecraft ranging from rockets and spacecraft to gliders and small passenger aircraft?

a)

Health & Safety

b)

Aerospace

c)

Agricultural

d)

Mechanical

41.

Which Engineering Field is this...


Devise procedures and devices to improve medical conditions?

a)

Biomedical

b)

Health & Safety

c)

Medical

d)

Chemistry

42.

Which Engineering Field is this...


Plan the design, construction, and maintenance of various civil structures?

a)

Industrial

b)

Mechanical

c)

Civil

d)

Petroleum

43.

These engineers are involved in crude oil deposit exploration, the removal of oil, and the transportation and refining of oil. This includes the design of drilling equipment, pipeline transportation systems, and the processes to refine the oil.

a)

Civil Engineer

b)

Mechanical Engineer

c)

Materials Engineer

d)

Petroleum Engineer

44.

This type of engineer is involved in the discovery, extraction, and processing of raw materials.

a)

Petroleum Engineer

b)

Mining Engineer

c)

Civil Engineer

d)

Industrial Engineer

45.
What kind of simple machine?
a)
pulley
b)
wheel and axle
c)
lever
d)
wedge
46.
If simple machines reduce the force needed to move an object, what trade-off must be made?
a)
increase the amount of work
b)
decrease the amount of work
c)
increase the distance the force is applied
d)
decrease the distance the force is applied
47.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
48.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
49.
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
50.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
51.
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
52.

a natural non renewable fuel such as coal, oil, or natural gas formed over a very long time in the geological past from the remains of living organisms

a)

fossil fuel

b)

hydropower

c)

geothermal

d)

wind

53.

an energy resource such as trees or wind that is replaceable by natural means

a)

renewable

b)

nonrenewable

54.

heat harnessed from deep beneath Earth's surface and converted to useable energy

a)

Geothermal

b)

biomass

c)

wind

d)

solar

55.

movement of water through a dam in a river is converted to useable energy

a)

hydropower

b)

solar

c)

nuclear

d)

wind

56.

the sun's energy is collected and converted to useable energy

a)

nuclear

b)

biomass

c)

natural gas

d)

solar

57.

turbines harness the movement of air and convert it to useable energy

a)

wind

b)

biomass

c)

natural gas

d)

hydropower

58.

How much pressure is created if 100 Newtons of force is applied over an area of 4 square meters?

a)

400 Pascals

b)

.04 Pascals

c)

104 Pascals

d)

25 Pascals

59.

How much force is needed to apply 35 Pascals to 7 square meters?

a)

5 Newtons

b)

42 Newtons

c)

245 Newtons

d)

105 Newtons

60.

What would be the area of the system if 50 Newtons produced 1000 Pascals?

a)

20 m220\ m^2

b)

0.05 m20.05\ m^2

c)

50,000 m250,000\ m^2

d)

950 m2 950\ m^{2\ }

61.

Who is this Disney Character?

a)

Bob the Builder

b)

Wreck it Ralph

c)

Fix- It Felix

d)

Woody

62.
What does Boyle's law relate to?
a)
Temperature and Volume
b)
Volume and Pressure
c)
Temperature and Pressure
63.
In Charles' Law the pressure remains constant.
a)
True
b)
False
64.
True or False: Gases can be compressed. 
a)
True
b)
False
65.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
66.
Which container will have a lower pressure?
a)
left
b)
right
c)
they both have the same pressure
d)
I don't know
67.
What is the formula Charles' Law?
a)
V = T
b)
VT = VT
c)
T1 / V1 = T2 / V2
d)
V1 / T1 = V2 / T2
68.
Gas Laws involve what three terms?
a)
Solid Liquid Gas 
b)
Speed Velocity Acceleration 
c)
Elements Compounds Mixtures 
d)
Pressure Temperature Volume 
69.
Temperature describes  the ______________ of particles.
a)
volume
b)
mass
c)
motion
d)
conductivity
70.

Absolute zero is

a)

0 K

b)

where there is no molecular movement

c)

the coldest temperature possible

d)

all of these

71.

If 200 mL of a gas at 27°F is cooled to -33°F at a constant pressure, the volume will be

a)

250.75 mL

b)

204 mL

c)

196.13 mL

d)

175.36 mL

72.
The amount of force pushing on an area is the definition of....
a)
Fluid
b)
Viscosity
c)
Barometer
d)
Pressure
73.
Which of the following would increase the pressure on a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
74.

What should my guy do here?

a)

Tip Toe

b)

Hop across the ice

c)

Spread his feet out and slide them across the ice

d)

Stay where he is

75.

Who is this character?

a)

Baloo

b)

Daffy Duck

c)

Bell

d)

Pinocchio

76.

An 85.0-N person climbs stairs, gaining 4.50 meters in height. Find the work done to accomplish this task.

a)

483 J

b)

18.9 J

c)

382.5 J

d)

0 J

77.

A girl applies a horizontal force of 400-N to a box as she slides it across the room. If she moves the box 25-m how much work did she do to the box?

a)

0 J

b)

400 J

c)

10,000 J

d)

16 J

78.

A weight lifter moves a 45-kg dumbell from the floor to a height of 2 meters. How much work does the weight lifter do on the dumbell? (Remember: Joules are Newtons times meters)

a)

90 J

b)

-90 J

c)

900 J

d)

450 J

79.

What company would hire an Agricultural Engineer?

a)
b)
c)
d)
80.

What company would hire a Petroleum Engineer?

a)
b)
c)
d)
81.

What company would hire a Software Engineer?

a)
b)
c)
d)
82.

What company would hire a Chemical Engineer?

a)
b)
c)
d)
83.

The company Caterpillar specializes in heavy duty machinery. What kind of engineer would they be likely to employ?

a)

Biomedical

b)

Mechanical

c)

Chemical

d)

Software

84.

Who is this Engineer?

a)

Fix it Felix

b)

Wreck it Ralph

c)

Bob the Builder

d)

Bill Nye

85.

The branch of science and technology concerned with the design, building, and use of engines, machines, and structures is defined as:

a)

Engineering

b)

Robotics

c)

Welding

d)

Physics

86.
How is work defined?
a)
the amount of energy 
b)
the transfer of force over a distance
c)
rate of work in a given time
d)
the change in distance in a given time
87.
What is the unit of measurement for work?
a)
Newtons
b)
Joules 
c)
Watts
d)
Meters
88.

If given 2 Forces (1 Effort, 1 Resistance) how do you find Mechanical Advantage?

a)

FRFE\frac{F_R}{F_E}

b)

FR⋅FEF_R\cdot F_E

c)

FEFR\frac{F_E}{F_R}

89.

If given 2 Distance (1 Effort, 1 Resistance) how do you find Mechanical Advantage?

a)

 DRDE\frac{D_R}{D_E} 

b)

 DR⋅DED_R\cdot D_E 

c)

 DEDR\frac{D_E}{D_R} 

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