AUT 101-Chapter 3 || 100% Verified Solutions.
1. Describe Newton's first law of motion and give an application of this law in Automotive
Technology. correct answers Newton's first law of motion states that an object at rest tends to
remain at rest and object in motion tends to remain in motion. When a car is parked on a level
street, it remains stationary unless it is driven or pushed.
2. In what four states does matter exist? Cite examples of each. correct answers The four
states of matter are solid, liquid, gas and plasma. The atoms in a solid are tightly bound to
each other, either in a regular geometric lattice (crystalline solids, which include metals and
ordinary ice) or irregularly (an amorphous solid such as common window glass). A liquid,
like a gas, displays the properties of a fluid. A liquid can flow, assume the shape of a
container, and, if placed in a sealed container, will distribute applied pressure evenly to every
surface in the container. Water is a good example of a liquid. Gas may be made up of
individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of
atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon
dioxide). A plasma can be created by heating a gas or subjecting it to a strong
electromagnetic field applied with a laser or microwave generator. The sun is an example of
plasma.
3. Explain Newton's second law of motion and give an example of how this law is used in
automotive theory. correct answers Newton's second law of motion states that when a force
acts on an object, the motion of the object, the motion of the object will change. Trucks have
a greater mass than cars. Because of the large mass requires larger force to produce a given
acceleration, a truck needs a more powerful engine than a car.
4. Describe five different forms of energy. correct answers Chemical, Thermal, Electrical,
Mechanical and Radiant
5. Describe four different types of energy conversion. correct answers Chemical to Thermal,
Chemical to Electrical, Electrical to Mechanical and Thermal to Mechanical.
6. Explain why a rotating, tilted wheel moves in the direction of the tilt. correct answers
Because the centerline of the wheel is in the direction of the tilt the wheel will move in
relation to it.
7. Why are gases and liquids considered fluids? correct answers Because the characteristic of
fluids is that they will conform to the shape of the container just like gases and liquids.
8. Describe how out-of-balance forces can affect the automobile. correct answers Improper
balance can cause premature wear or destruction of parts such as the uneven wear on tire if
not correctly balanced.
9. Describe the effect of pressure on an enclosed volume of a gas. correct answers The
pressure of a gas in a volume increase or decrease in relationship to its temperature.
Increasing the temperature of the gas will increase its pressure.
10. The nucleus of an atom contains: correct answers protons and neutrons.
, 11. Which of the following is the correct formula used to calculate engine displacement?
correct answers A. Displacement=π x R2 x L x N
12. Work is calculated by multiplying: correct answers Force by Distance.
13. Energy may be defined as the ability to do what? correct answers work.
14. Name three types of simple machines. correct answers Inclined plane, pulleys and levels
15. When one object is moved over another object, the resistance to motion is called what?
correct answers friction.
16. Weight is the measurement of the_________on an object. correct answers earth's
gravitational pull
17. Torque is a force that does work with a _______ action. correct answers twisting
18. Explain why elastic mounts are used to connect the engine to the frame. correct answers
Elastic mounts are used to connect the engine to the frame to hold the engine in place and
isolate engine vibrations from the rest of the vehicle
19. Vacuum is defined as the absence of_______________ . correct answers atmospheric
pressure
20. While discussing different types of energy: Technician A says that when energy is
released to do work, it is called potential energy. Technician B says that stored energy is
referred to as kinetic energy. Who is correct? correct answers (D) Neither A nor B
21. While discussing friction in matter: Technician A says that friction creates heat.
Technician B says that friction only occurs with solids and is not present with liquids and
gases. Who is correct? correct answers A. Technician A only
22. While discussing mass and weight: Technician A says that mass is the measurement of an
object's inertia. Technician B says that mass and weight may be measured in cubic inches.
Who is correct? correct answers D. Neither A nor B
Acceleration- correct answers is the rate of increase in speed.
Acids- correct answers are compounds that break into hydrogen ions and another compound
when placed in an aqueous (water) solution.
Aerodynamics- correct answers is the study of the effects of air on a moving object.
Alloy- correct answers is a mixture of two or more metals.
Amplitude- correct answers the maximum extent of a vibration or oscillation, measured from
the position of equilibrium
Atmospheric pressure- correct answers may be defined as the total weight of the earth's
atmosphere.
1. Describe Newton's first law of motion and give an application of this law in Automotive
Technology. correct answers Newton's first law of motion states that an object at rest tends to
remain at rest and object in motion tends to remain in motion. When a car is parked on a level
street, it remains stationary unless it is driven or pushed.
2. In what four states does matter exist? Cite examples of each. correct answers The four
states of matter are solid, liquid, gas and plasma. The atoms in a solid are tightly bound to
each other, either in a regular geometric lattice (crystalline solids, which include metals and
ordinary ice) or irregularly (an amorphous solid such as common window glass). A liquid,
like a gas, displays the properties of a fluid. A liquid can flow, assume the shape of a
container, and, if placed in a sealed container, will distribute applied pressure evenly to every
surface in the container. Water is a good example of a liquid. Gas may be made up of
individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of
atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon
dioxide). A plasma can be created by heating a gas or subjecting it to a strong
electromagnetic field applied with a laser or microwave generator. The sun is an example of
plasma.
3. Explain Newton's second law of motion and give an example of how this law is used in
automotive theory. correct answers Newton's second law of motion states that when a force
acts on an object, the motion of the object, the motion of the object will change. Trucks have
a greater mass than cars. Because of the large mass requires larger force to produce a given
acceleration, a truck needs a more powerful engine than a car.
4. Describe five different forms of energy. correct answers Chemical, Thermal, Electrical,
Mechanical and Radiant
5. Describe four different types of energy conversion. correct answers Chemical to Thermal,
Chemical to Electrical, Electrical to Mechanical and Thermal to Mechanical.
6. Explain why a rotating, tilted wheel moves in the direction of the tilt. correct answers
Because the centerline of the wheel is in the direction of the tilt the wheel will move in
relation to it.
7. Why are gases and liquids considered fluids? correct answers Because the characteristic of
fluids is that they will conform to the shape of the container just like gases and liquids.
8. Describe how out-of-balance forces can affect the automobile. correct answers Improper
balance can cause premature wear or destruction of parts such as the uneven wear on tire if
not correctly balanced.
9. Describe the effect of pressure on an enclosed volume of a gas. correct answers The
pressure of a gas in a volume increase or decrease in relationship to its temperature.
Increasing the temperature of the gas will increase its pressure.
10. The nucleus of an atom contains: correct answers protons and neutrons.
, 11. Which of the following is the correct formula used to calculate engine displacement?
correct answers A. Displacement=π x R2 x L x N
12. Work is calculated by multiplying: correct answers Force by Distance.
13. Energy may be defined as the ability to do what? correct answers work.
14. Name three types of simple machines. correct answers Inclined plane, pulleys and levels
15. When one object is moved over another object, the resistance to motion is called what?
correct answers friction.
16. Weight is the measurement of the_________on an object. correct answers earth's
gravitational pull
17. Torque is a force that does work with a _______ action. correct answers twisting
18. Explain why elastic mounts are used to connect the engine to the frame. correct answers
Elastic mounts are used to connect the engine to the frame to hold the engine in place and
isolate engine vibrations from the rest of the vehicle
19. Vacuum is defined as the absence of_______________ . correct answers atmospheric
pressure
20. While discussing different types of energy: Technician A says that when energy is
released to do work, it is called potential energy. Technician B says that stored energy is
referred to as kinetic energy. Who is correct? correct answers (D) Neither A nor B
21. While discussing friction in matter: Technician A says that friction creates heat.
Technician B says that friction only occurs with solids and is not present with liquids and
gases. Who is correct? correct answers A. Technician A only
22. While discussing mass and weight: Technician A says that mass is the measurement of an
object's inertia. Technician B says that mass and weight may be measured in cubic inches.
Who is correct? correct answers D. Neither A nor B
Acceleration- correct answers is the rate of increase in speed.
Acids- correct answers are compounds that break into hydrogen ions and another compound
when placed in an aqueous (water) solution.
Aerodynamics- correct answers is the study of the effects of air on a moving object.
Alloy- correct answers is a mixture of two or more metals.
Amplitude- correct answers the maximum extent of a vibration or oscillation, measured from
the position of equilibrium
Atmospheric pressure- correct answers may be defined as the total weight of the earth's
atmosphere.
