SPHE 324 Week 1 Quiz | Score 100/100 | American
Military University
Topic 1: Definitions & Scope (Questions 1–10)
1. What is the definition of biomechanics?
• A) The study of human anatomy
• B) The application of mechanical principles to living organisms
• C) The analysis of sports psychology
• D) The measurement of athletic performance only
Answer: B
Rationale: Biomechanics applies physics and engineering concepts to understand the movement
and structure of biological systems, especially humans in sport.
2. Which of the following is an example of a qualitative biomechanical analysis?
• A) Measuring joint angles with a goniometer
• B) Using a force plate to measure ground reaction forces
• C) Watching a video and noting that an athlete’s knees are caving inward during a squat
• D) Calculating the velocity of a pitched baseball
Answer: C
Rationale: Qualitative analysis involves visual observation and subjective evaluation (e.g., form
errors), not numerical measurement.
3. Quantitative biomechanical analysis involves:
• A) Subjective ratings of performance
• B) Describing what you see without numbers
, • C) Measuring and quantifying mechanical variables (force, velocity, etc.)
• D) Interviewing the athlete about how they feel
Answer: C
Rationale: Quantitative analysis uses numbers and instrumentation (e.g., motion capture, force
plates).
4. Which branch of mechanics describes motion without reference to forces?
• A) Kinetics
• B) Kinematics
• C) Statics
• D) Dynamics
Answer: B
Rationale: Kinematics describes the spatial and temporal components of motion (displacement,
velocity, acceleration) – “what you can see.”
5. The study of forces that cause or change motion is called:
• A) Kinematics
• B) Kinetics
• C) Anthropometrics
• D) Physiology
Answer: B
Rationale: Kinetics examines forces (gravity, muscle, friction, ground reaction) that produce or
modify movement.
6. A scalar quantity:
• A) Has both magnitude and direction
• B) Has only magnitude
• C) Has only direction
, • D) Cannot be measured
Answer: B
Rationale: Scalars (e.g., speed, mass, temperature) are fully described by a number and unit; no
direction is needed.
7. A vector quantity:
• A) Has only magnitude
• B) Has only direction
• C) Has both magnitude and direction
• D) Is always positive
Answer: C
Rationale: Vectors (e.g., velocity, force, acceleration) require a magnitude and a specific
direction for complete description.
8. Which of the following is a vector?
• A) Mass (75 kg)
• B) Distance (10 m)
• C) Speed (6 m/s)
• D) Displacement (10 m north)
Answer: D
Rationale: Displacement includes a direction, making it a vector; speed (scalar) does not.
9. The active subsystem of movement control includes:
• A) Bones and ligaments
• B) Nerves and sensory receptors
• C) Muscles, tendons, and fascia
• D) Joint capsules
Military University
Topic 1: Definitions & Scope (Questions 1–10)
1. What is the definition of biomechanics?
• A) The study of human anatomy
• B) The application of mechanical principles to living organisms
• C) The analysis of sports psychology
• D) The measurement of athletic performance only
Answer: B
Rationale: Biomechanics applies physics and engineering concepts to understand the movement
and structure of biological systems, especially humans in sport.
2. Which of the following is an example of a qualitative biomechanical analysis?
• A) Measuring joint angles with a goniometer
• B) Using a force plate to measure ground reaction forces
• C) Watching a video and noting that an athlete’s knees are caving inward during a squat
• D) Calculating the velocity of a pitched baseball
Answer: C
Rationale: Qualitative analysis involves visual observation and subjective evaluation (e.g., form
errors), not numerical measurement.
3. Quantitative biomechanical analysis involves:
• A) Subjective ratings of performance
• B) Describing what you see without numbers
, • C) Measuring and quantifying mechanical variables (force, velocity, etc.)
• D) Interviewing the athlete about how they feel
Answer: C
Rationale: Quantitative analysis uses numbers and instrumentation (e.g., motion capture, force
plates).
4. Which branch of mechanics describes motion without reference to forces?
• A) Kinetics
• B) Kinematics
• C) Statics
• D) Dynamics
Answer: B
Rationale: Kinematics describes the spatial and temporal components of motion (displacement,
velocity, acceleration) – “what you can see.”
5. The study of forces that cause or change motion is called:
• A) Kinematics
• B) Kinetics
• C) Anthropometrics
• D) Physiology
Answer: B
Rationale: Kinetics examines forces (gravity, muscle, friction, ground reaction) that produce or
modify movement.
6. A scalar quantity:
• A) Has both magnitude and direction
• B) Has only magnitude
• C) Has only direction
, • D) Cannot be measured
Answer: B
Rationale: Scalars (e.g., speed, mass, temperature) are fully described by a number and unit; no
direction is needed.
7. A vector quantity:
• A) Has only magnitude
• B) Has only direction
• C) Has both magnitude and direction
• D) Is always positive
Answer: C
Rationale: Vectors (e.g., velocity, force, acceleration) require a magnitude and a specific
direction for complete description.
8. Which of the following is a vector?
• A) Mass (75 kg)
• B) Distance (10 m)
• C) Speed (6 m/s)
• D) Displacement (10 m north)
Answer: D
Rationale: Displacement includes a direction, making it a vector; speed (scalar) does not.
9. The active subsystem of movement control includes:
• A) Bones and ligaments
• B) Nerves and sensory receptors
• C) Muscles, tendons, and fascia
• D) Joint capsules
