Welcome to the Quiz!
This quiz contains 14 questions from a mix of 1 subtopics.
What is a projectile?
an object that moves only in a straight line
an object that is stationary
an object that moves only vertically
an object with an initial velocity that then moves freely under gravity
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What remains constant in a projectile's motion?
neither horizontal nor vertical velocities
both horizontal and vertical velocities
only horizontal velocity
only vertical velocity
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What is the vertical component of velocity at the highest point of a projectile's motion?
0 m/s
depends on the angle of projection
9.81 m/s
depends on the initial velocity
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In the context of projectile motion, what is meant by resolving velocities into horizontal and vertical vectors?
determining the angle between the horizontal and vertical velocities
combining the horizontal and vertical velocities into a single vector
calculating the total velocity from the horizontal and vertical components
separating the total velocity into its horizontal and vertical components
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How is the range of a projectile calculated?
by adding the horizontal and vertical velocities
by subtracting the initial velocity from the final velocity
by multiplying the horizontal velocity by the flight time
by dividing the total distance by the flight time
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What is the term for the curved path typical of projectile motion?
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What is the term for the horizontal distance a projectile travels?
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Explain how the horizontal and vertical components of a projectile's motion are independent.
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Explain why the vertical component of velocity is zero at the highest point of a projectile's motion.
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A football is kicked horizontally off a cliff that is 30 meters high with an initial speed of 15 m s-1. How long does it take for the football to hit the ground? Assume no air resistance.
3.53 s
4.18 s
1.52 s
2.47 s
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A stone is thrown at an angle of 30° to the horizontal with an initial speed of 20 m s-1. What is the initial horizontal velocity component of the stone?
10.03 m s-1
17.32 m s-1
15.45 m s-1
20.96 m s-1
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A ball is thrown vertically upwards with an initial velocity of 29.4 m s-1. Calculate the time taken to reach its maximum height.
6 s
2 s
5 s
3 s
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A projectile is launched at a speed of 50 m s-1 at an angle of 60° to the horizontal. What is the initial vertical velocity component of the projectile?
43.3 m/s
35.3 m/s
25.4 m/s
50.1 m/s
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A basketball player throws a ball with an initial speed of 12 m s-1 at an angle of 45° to the horizontal. What is the range of the throw, assuming no air resistance?
20.6 m
17.7 m
23.5 m
14.7 m
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