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Questions and Answers
What is projectile motion?
What is projectile motion?
Projectile motion is the combination of vertical and horizontal motions which are independent of each other.
Projectile motion is a combination of _____ and _____ motions which are independent of each other.
Projectile motion is a combination of _____ and _____ motions which are independent of each other.
vertical, horizontal
What is a projectile?
What is a projectile?
Any object thrown in the air, acted upon only by gravity, which follows a parabolic path.
A projectile follows a parabolic path called a _____.
A projectile follows a parabolic path called a _____.
A projectile has only vertical velocity.
A projectile has only vertical velocity.
Horizontal velocity is always constant in projectile motion (neglecting air resistance).
Horizontal velocity is always constant in projectile motion (neglecting air resistance).
Gravity affects the horizontal velocity of a projectile.
Gravity affects the horizontal velocity of a projectile.
What primarily determines the vertical velocity of a projectile?
What primarily determines the vertical velocity of a projectile?
Both the magnitude and direction of vertical velocity change during projectile motion.
Both the magnitude and direction of vertical velocity change during projectile motion.
What is the approximate value of acceleration due to gravity near the Earth's surface?
What is the approximate value of acceleration due to gravity near the Earth's surface?
What is the initial vertical velocity of a horizontally launched projectile?
What is the initial vertical velocity of a horizontally launched projectile?
In projectile motion (neglecting air resistance), horizontal acceleration is always _____.
In projectile motion (neglecting air resistance), horizontal acceleration is always _____.
In projectile motion, vertical acceleration is always equal to the acceleration due to _____, which is approximately _____ on Earth.
In projectile motion, vertical acceleration is always equal to the acceleration due to _____, which is approximately _____ on Earth.
What term describes the horizontal distance traveled by a projectile?
What term describes the horizontal distance traveled by a projectile?
What term describes the maximum vertical distance reached by a projectile?
What term describes the maximum vertical distance reached by a projectile?
For a horizontally launched projectile, the horizontal displacement $d_x$ can be calculated using the formula $d_x = _____$.
For a horizontally launched projectile, the horizontal displacement $d_x$ can be calculated using the formula $d_x = _____$.
For a horizontally launched projectile, the vertical displacement $d_y$ can be calculated using the formula $d_y = _____$.
For a horizontally launched projectile, the vertical displacement $d_y$ can be calculated using the formula $d_y = _____$.
Flashcards
Speed limits
Speed limits
The legal maximum or minimum speed at which road vehicles travel.
Projectile motion
Projectile motion
Motion in two dimensions, combining vertical and horizontal movements that are independent of each other.
Horizontal Velocity
Horizontal Velocity
The horizontal speed of a projectile. Gravity does not affect it and it remains constant.
Vertical velocity
Vertical velocity
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Horizontally launched projectile
Horizontally launched projectile
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Projectile
Projectile
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Trajectory
Trajectory
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Projectile motion
Projectile motion
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Horizontal velocity constancy
Horizontal velocity constancy
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Vertical velocity variation
Vertical velocity variation
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Horizontal acceleration
Horizontal acceleration
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Vertical acceleration
Vertical acceleration
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Range
Range
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Maximum height
Maximum height
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Study Notes
- Speed limits regulate the legal maximum or minimum speed at which road vehicles travel.
- They minimize accidents and ensure smooth traffic flow.
- Vehicles moving uniformly at an accelerated pace could pose danger without speed limits.
Projectile Motion
- Projectile motion is a combination of vertical and horizontal motions.
- These motions are independent of each other.
Parts of Projectile Motion
- Projectile: any object thrown in the air acted only by gravity.
- Projectiles follow a parabolic path called a trajectory.
- Projectiles have horizontal and vertical velocities.
- Projectile: an object undergoing projectile motion.
- Trajectory: the arc/curve-like motion path undergone by a projectile.
Horizontal Velocity
- Always constant.
- Gravity does not affect the horizontal velocity.
Vertical Velocity
- Depends on gravity.
- Both the magnitude and direction changes.
- Acceleration due to gravity is at -9.8 m/s².
Types of Projectile Motion
- Horizontally launched projectile.
- An object initially shot horizontally parallel to the ground.
- Horizontal velocity is constant.
- Initial vertical velocity is zero.
- There is a constant horizontal velocity and no initial vertical velocity.
Projectile Motion Explained
- Motion of an object that has an initial horizontal velocity and acted upon by gravity.
- Air resistance is neglected.
Velocity Details
- Horizontal velocity is always constant.
- Vertical velocity decreases as the projectile moves up and increases as it moves down.
- Vertical velocity changes along its trajectory.
Acceleration Details
- Horizontal acceleration is always zero.
- Vertical acceleration is always equal to the acceleration due to gravity (-9.8 m/s² on Earth).
Distance Details
- Horizontal distance is the range.
- Vertical distance is the maximum height.
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