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Preview Assessment Lec 02 Quiz
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Lec 02 Quiz
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Question 1
16 points
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A projectile is launched from a cliff at a 42
degree angle above the horizontal. It eventually reaches the ground
below.
This question is exclusively about the projectile while it is in free fall.
It is in free fall from the instant after it
leaves the launcher until the instant before it hits the ground.
Where, along the trajectory of the projectile, is the
kinetic energy of the projectile at its minimum value?
Nowhere.
At the point where it leaves the launcher.
At the highest point of its motion.
At the lowest point in its motion, its location immediately prior to hitting the ground.
Question 2
16 points
Save
A projectile is launched from a cliff at a 42
degree angle above the horizontal.
It eventually reaches the ground
below.
This question is exclusively about the projectile while it is in free fall.
It is in free fall from the instant after it
leaves the launcher until the instant before it hits the ground.
Where, along the trajectory of the projectile, is the
kinetic energy of the projectile zero?
Nowhere.
At the point where it leaves the launcher.
At the highest point of its motion.
At the lowest point in its motion, its location immediately prior to hitting the ground.
Question 3
16 points
Save
A projectile is launched from a cliff at a 42
degree angle above the horizontal.
It eventually reaches the ground
below.
This question is exclusively about the projectile while it is in free fall.
It is in free fall from the instant after it
leaves the launcher until the instant before it hits the ground.
Where, along the trajectory of the projectile, is the
potential energy of the projectile at its maximum value?
Nowhere.
At the point where it leaves the launcher.
At the highest point in its trajectory.
At the lowest point in its motion, its location immediately prior to hitting the ground.
Question 4
16 points
Save
A projectile is launched from a cliff at a 42
degree angle above the horizontal.
It eventually reaches the ground
below.
This question is exclusively about the projectile while it is in free fall.
It is in free fall from the instant after it
leaves the launcher until the instant before it hits the ground.
Where, along the trajectory of the projectile, is the
kinetic energy of the projectile at its maximum value?
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Nowhere.
At the point where it leaves the launcher.
At the highest point of its motion.
At the lowest point in its motion, its location immediately prior to hitting the ground.
Question 5
16 points
Save
Consider a pendulum consisting of a metal ball on the end of a slender string.
A person pulls the ball to one side,
keeping the string taught.
The ball moves along an arc, increasing its height above the ground as it is moved to one
side.
Consider the reference level for potential energy of the ball to be the ball's lowest possible level.
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 Spring '09
 TANNY
 Calculus, Force, Friction, Mass, control panel

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