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Questions and Answers
The trajectory of a projectile can be described as being in the shape of a?
The trajectory of a projectile can be described as being in the shape of a?
parabola
While the ball is moving through air upward and rightward along its trajectory, the forces which act upon it are?
While the ball is moving through air upward and rightward along its trajectory, the forces which act upon it are?
the force of Earth's gravity pulling it downward
In which direction does the force of gravity on a projectile act?
In which direction does the force of gravity on a projectile act?
downward
The force of gravity always causes a projectile to?
The force of gravity always causes a projectile to?
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Which of the following are true statements about the horizontal motion of a projectile? (Select all that apply)
Which of the following are true statements about the horizontal motion of a projectile? (Select all that apply)
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Which of the following are true statements about the vertical motion of a projectile? (Select all that apply)
Which of the following are true statements about the vertical motion of a projectile? (Select all that apply)
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Both balls dropped from rest and launched horizontally from the same height will hit the ground at the same time.
Both balls dropped from rest and launched horizontally from the same height will hit the ground at the same time.
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The horizontal motion of a projectile affects its vertical motion.
The horizontal motion of a projectile affects its vertical motion.
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A softball is thrown at an angle to the horizontal. As the softball moves upward toward the peak of its trajectory, it ____________. As the softball falls downward from the peak of its trajectory, it __________.
A softball is thrown at an angle to the horizontal. As the softball moves upward toward the peak of its trajectory, it ____________. As the softball falls downward from the peak of its trajectory, it __________.
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Which of the following are true statements about the horizontal motion of an angle-launched projectile? (Select all that apply)
Which of the following are true statements about the horizontal motion of an angle-launched projectile? (Select all that apply)
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Which of the following are true statements about the vertical motion of an angle-launched projectile? (Select all that apply)
Which of the following are true statements about the vertical motion of an angle-launched projectile? (Select all that apply)
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True statement about the acceleration of a projectile launched at an angle to the horizontal?
True statement about the acceleration of a projectile launched at an angle to the horizontal?
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Which of the following are true statements about a projectile? (Select all that apply)
Which of the following are true statements about a projectile? (Select all that apply)
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Which of the following are true of a projectile at the moment it is at the peak of its trajectory? (Select all that apply)
Which of the following are true of a projectile at the moment it is at the peak of its trajectory? (Select all that apply)
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Study Notes
Horizontal Projectile Motion
- The path of a projectile follows a parabolic trajectory.
- During its flight, a projectile is influenced primarily by the force of Earth's gravity, acting downward.
- Gravity consistently directs its force downward on all projectiles.
- The downward acceleration caused by gravity affects all projectiles at a constant rate.
Horizontal Motion Characteristics
- Horizontal motion maintains a constant velocity throughout the projectile's flight.
- Horizontal acceleration is zero; thus, no horizontal forces act on the projectile.
- An object remains in continuous horizontal motion unless acted upon by an external force.
Vertical Motion Characteristics
- As a projectile descends, its vertical speed increases due to gravity.
- Vertical velocity is not constant and changes as the projectile moves upward and downward.
- The vertical acceleration is constant at approximately 9.8 m/s² directed downward.
Launch Comparisons
- Two projectiles, one dropped and one launched horizontally from the same height, will hit the ground simultaneously.
- The horizontal motion does not influence how long it takes for a projectile to fall or the nature of its vertical motion.
Insights on Angled Projectiles
- An angled projectile will slow down when moving upwards and will then speed up as it descends.
- Horizontal velocity remains constant regardless of the vertical motion; the projectile retains the same horizontal velocity at its peak as at launch.
- Vertical velocity decreases until the peak is reached and then increases as the projectile falls.
General Projectile Characteristics
- A projectile operates under the principle of free fall, solely affected by gravity.
- At the apex of its flight, a projectile has no vertical velocity (0 m/s), while horizontal acceleration remains zero.
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Description
Test your knowledge on horizontal projectile motion with these flashcards. Each card covers key concepts, definitions, and important forces acting on projectiles. Perfect for students learning about the dynamics of motion in physics.
