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33 Cards in this Set
- Front
- Back
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What is the only force acting on a projectile?
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Gravity
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What type of force is gravity, a vertical or horizontal force?
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Vertical
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WHat is the vertical acceleration of a projectile?
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-9.8 m/s/s
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What is the horizontal acceleration of a projectile?
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0 m/s/s
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What happens to the vertical velocity of the projectile on the way up?
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Decreases
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What is the vertical velocity of a projectile at the highest point?
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0 m/s/s
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What is the acceleration of projectile at the highest point?
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-9.8 m/s/s
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What happens to thew vertical velocity of a projectile on the way down?
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Increases
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What happens to the horizontal velocity of a projectile the way across?
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Constant
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What happens to the vertical displacement of a projectile on the way up?
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Decrease
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What happens to the vertical displacement of a projectile on the way down?
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Increases
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What happens to the horizontal displacement of a projectile the way across?
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Constant
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If a bullet is shot horizontally with a speed of 100 mph, and another identical bullet is dropped from the same height, which bullet hits the ground first?
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Same
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What quantity determines how long a horizontally launched projectile will stay in the air?
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Launch Height
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Vertical and horizontal components are independent of each other, true or false?
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True
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What is the max horizontal distance?
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Range
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What is the max vertical distance?
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Height
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A projectile goes up and down in 20 seconds. At what time will it be at its max height?
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10 seconds
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A projectile goes up and down in 20 seconds. At what time will it cover its max range?
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20 seconds
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How do the initial and final vertical velocities of a projectile compare at the same height?
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Equal but opposite
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What is the overall vertical displacement of a projectile when it returns to its original height?
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0 Meters
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If a projectile is show with the same speed at an increasing angle what happens to the time a projectile stays in the air?
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Increases
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If a projectile is show with the same speed at an increasing angle what happens to the horizontal component of initial velocity?
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Decreases
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If a projectile is show with the same speed at an increasing angle what happens to the vertical components of initial velocity?
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Increases
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If a projectile is show with the same speed at an increasing angle what happens to the height?
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Increases
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At what angle should a projectile be shot to achieve max height?
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90 degrees
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At what angle should a projectile be shot to achieve max range?
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45 Degrees
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A projectile is launched with a speed of 50 m/s @ 30 NE. What different angle can we shoot a projectile with the same velocity to get the same range?
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60 degrees
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What do we call the path that a projectile takes?
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Trajectory
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What is the shape of a projectiles path (trajectory)?
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Parabolic
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What is the difference between horizontally launched projectiles and projectiles launched at an angle?
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Angle has an initial vertical velocity
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What do we call a fast moving horizontally launched projectile that falls around the earth rather than into it?
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Satellite
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A projectile is launched at an angle, and covers a range of 100 meters. What horizontal distance will the projectile cover when it gets to its max height?
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50 meters
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