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Questions and Answers
What is the main direction of centripetal acceleration for an object moving in a circle?
What is the main direction of centripetal acceleration for an object moving in a circle?
A displacement vector indicates the total distance covered by an object during its motion.
A displacement vector indicates the total distance covered by an object during its motion.
False (B)
What is the term for the maximum horizontal distance a projectile can travel?
What is the term for the maximum horizontal distance a projectile can travel?
range
The __________ is the instantaneous acceleration expressed in unit vector notation.
The __________ is the instantaneous acceleration expressed in unit vector notation.
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Match the following terms with their definitions:
Match the following terms with their definitions:
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What is instantaneous acceleration?
What is instantaneous acceleration?
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Projectile motion is affected by horizontal acceleration.
Projectile motion is affected by horizontal acceleration.
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What is the range of a projectile?
What is the range of a projectile?
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In uniform circular motion, centripetal acceleration points toward the ______.
In uniform circular motion, centripetal acceleration points toward the ______.
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Which equation is used to calculate the time of flight for a projectile?
Which equation is used to calculate the time of flight for a projectile?
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In nonuniform circular motion, both tangential and centripetal accelerations can exist.
In nonuniform circular motion, both tangential and centripetal accelerations can exist.
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In projectile motion, the vertical component of initial velocity is represented by ______.
In projectile motion, the vertical component of initial velocity is represented by ______.
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What does the velocity vector represent for a particle in motion?
What does the velocity vector represent for a particle in motion?
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The displacement vector provides the longest distance between two points on a particle's trajectory.
The displacement vector provides the longest distance between two points on a particle's trajectory.
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What is the equation for the time of flight of a projectile?
What is the equation for the time of flight of a projectile?
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In uniform circular motion, the total acceleration vector consists of centripetal and __________ accelerations.
In uniform circular motion, the total acceleration vector consists of centripetal and __________ accelerations.
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Match the terms related to motion with their definitions:
Match the terms related to motion with their definitions:
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Which of the following correctly defines 'trajectory'?
Which of the following correctly defines 'trajectory'?
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Motion in one direction is dependent on motion in a perpendicular direction.
Motion in one direction is dependent on motion in a perpendicular direction.
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What is the formula for average velocity?
What is the formula for average velocity?
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Flashcards
Instantaneous Acceleration
Instantaneous Acceleration
The acceleration of an object at a specific point in time.
Projectile Motion
Projectile Motion
Motion of an object under the influence of gravity only (constant acceleration).
Time of Flight (Projectile)
Time of Flight (Projectile)
The time a projectile takes to reach the ground (same elevation) after launch.
Range (Projectile)
Range (Projectile)
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Uniform Circular Motion
Uniform Circular Motion
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Centripetal Acceleration
Centripetal Acceleration
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Tangential Acceleration
Tangential Acceleration
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Nonuniform Circular Motion
Nonuniform Circular Motion
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Acceleration Vector
Acceleration Vector
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Angular Frequency
Angular Frequency
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Relative Velocity
Relative Velocity
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Time of Flight
Time of Flight
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Total Acceleration Vector
Total Acceleration Vector
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Trajectory
Trajectory
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Velocity Vector
Velocity Vector
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Position Vector (r(t))
Position Vector (r(t))
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Displacement Vector (Δr)
Displacement Vector (Δr)
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Average Velocity
Average Velocity
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Study Notes
Key Terms
- Dynamics: The study of how forces affect the motion of objects and systems.
- External Force: A force acting on an object or system originating outside the object or system.
- Force: A push or pull on an object, measured by magnitude and direction.
- Free Fall: A situation where the only force acting on an object is gravity.
- Free-Body Diagram: A sketch showing all external forces acting on an object or system.
- Hooke's Law: In a spring, the restoring force is proportional to and opposite the displacement.
- Inertia: The tendency of an object to resist changes in its motion.
- Inertial Reference Frame: A reference frame moving at a constant velocity relative to an inertial frame.
- Net External Force: The vector sum of all external forces acting on an object, causing mass to accelerate.
- Newton: SI unit of force, 1 N accelerates a 1 kg mass at 1 m/s².
- Newton's First Law: A body at rest stays at rest or, if in motion, stays in motion with constant velocity unless acted upon by a net external force (Law of Inertia).
- Newton's Second Law: The acceleration of a system is directly proportional to and in the same direction as the net external force acting on the system, and is inversely proportional to its mass.
- Newton's Third Law: For every action, there is an equal and opposite reaction.
- Normal Force: A supporting force perpendicular to the surface of contact.
- Tension: A pulling force acting along a stretched flexible object like a rope or cable.
- Thrust: A reaction force pushing a body forward in response to a backward force.
- Weight: Force due to gravity on an object with mass.
Key Equations
- Net External Force (Fnet): ∑F = F₁ + F₂ + …
- Newton's Second Law (Vector Form): ∑F = ma
- Newton's Second Law (Scalar Form): Fnet = ma
- Newton's Second Law (Component Form): ∑Fx = max, ∑Fy = may, ∑Fz = maz
- Newton's Second Law (Momentum Form): Fnet = dp/dt
- Weight Definition (Vector Form): w = mg
- Weight Definition (Scalar Form): w = mg
- Newton's Third Law Equation: FAB = -FBA
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Description
Test your knowledge on key concepts in Dynamics, including forces and motion. This quiz covers fundamental principles such as Newton's laws, inertia, and free-body diagrams. Challenge yourself with questions designed to reinforce your understanding of how external forces impact objects and systems.
