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Questions and Answers
What is the main branch of science that deals with the principles of mechanics and their applications to engineering problems?
What is the main branch of science that deals with the principles of mechanics and their applications to engineering problems?
- Engineering Mechanics (correct)
- Dynamics
- Statics
- Kinetics
Which branch of Engineering Mechanics deals with forces and their effects on bodies at rest?
Which branch of Engineering Mechanics deals with forces and their effects on bodies at rest?
- Kinetics
- Kinematics
- Statics (correct)
- Dynamics
Which branch of Dynamics deals with the motion of bodies without considering the forces causing the motion?
Which branch of Dynamics deals with the motion of bodies without considering the forces causing the motion?
- Kinematics (correct)
- Kinetics
- Statics
- Engineering Mechanics
What is the branch of Dynamics that deals with the motion of bodies due to the application of forces?
What is the branch of Dynamics that deals with the motion of bodies due to the application of forces?
Which of the following is NOT a branch of Engineering Mechanics?
Which of the following is NOT a branch of Engineering Mechanics?
Which characteristic of a force is NOT required to determine its effects on a body?
Which characteristic of a force is NOT required to determine its effects on a body?
What is the relationship between the kilogram-force (kgf) and the newton (N) in the SI system of units?
What is the relationship between the kilogram-force (kgf) and the newton (N) in the SI system of units?
Which of the following is NOT a way a force can affect the motion of a body?
Which of the following is NOT a way a force can affect the motion of a body?
Which of the following is NOT a characteristic of a force that must be known to determine its effects on a body?
Which of the following is NOT a characteristic of a force that must be known to determine its effects on a body?
Which of the following is a way a force can affect a body?
Which of the following is a way a force can affect a body?
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Study Notes
Engineering Mechanics
- Deals with principles of mechanics and their applications to engineering problems
Branches of Engineering Mechanics
- Divided into two main groups: Statics and Dynamics
Statics
- Deals with forces and their effects on bodies at rest
Dynamics
- Deals with forces and their effects on bodies in motion
- Sub-divided into two branches: Kinetics and Kinematics
Kinetics
- Deals with bodies in motion due to the application of forces
Kinematics
- Deals with bodies in motion without considering the forces responsible for the motion
Force
- Defined as an agent that produces or tends to produce, destroy or tends to destroy the motion of a body
- Can:
- Change the motion of a body
- Retard the motion of a body
- Balance forces already acting on a body
- Give rise to internal stresses in a body
Characteristics of a Force
- Magnitude of the force
- Line of action of the force
- Nature of the force (push or pull)
- Point at which the force is acting
Units of Force
- In M.K.S. system: kilogram-force (kgf)
- In S.I. system: newtons (N)
- 1 kgf = 9.81 N
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