ch05_projective_motion NOT NEEDED FOR MR ROSEN CLASS.ppt
Presentation
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Physics
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11th Grade
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Practice Problem
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Hard
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30 Slides • 28 Questions
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2
Open Ended
Why is it important to study the horizontal and vertical components of projectile motion separately?
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Multiple Choice
When you throw a baseball, what type of motion does it follow?
It moves in a straight line at constant speed.
It moves in a curved path due to both horizontal and vertical motion.
It moves only vertically with increasing speed.
It remains stationary after being thrown.
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6
7
Multiple Select
Which of the following are vector quantities?
Velocity
Acceleration
Momentum
Mass
8
Multiple Choice
Which of the following best describes the difference between a vector quantity and a scalar quantity?
A vector quantity has both magnitude and direction, while a scalar quantity has only magnitude.
A vector quantity has only magnitude, while a scalar quantity has both magnitude and direction.
A vector quantity can only be positive, while a scalar quantity can be negative.
A vector quantity is always larger than a scalar quantity.
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Fill in the Blanks
Type answer...
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Open Ended
How does a scalar quantity differ from a vector quantity?
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Fill in the Blanks
Type answer...
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16
Multiple Choice
If you use a scale of 1 cm = 20 km/h, what velocity does a 3-cm-long vector pointing to the right represent?
60 km/h to the right (east)
20 km/h to the right (east)
40 km/h to the right (east)
80 km/h to the right (east)
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19
Open Ended
Explain how the velocity of an airplane relative to the ground is affected when it flies with the wind versus against the wind.
20
Multiple Choice
If an airplane is flying north at 80 km/h relative to the air and there is a tailwind blowing north at 20 km/h, what is the airplane's velocity relative to the ground?
100 km/h
80 km/h
60 km/h
20 km/h
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23
Multiple Choice
When an 80-km/h airplane is caught in a 60-km/h crosswind blowing from west to east, what is the resultant speed of the airplane relative to the ground?
100 km/h
140 km/h
80 km/h
60 km/h
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Multiple Select
Which of the following statements are true about the resultant vector when two vectors are at right angles?
The resultant is the diagonal of the rectangle formed by the two vectors.
The resultant is equal to the sum of the magnitudes of the two vectors.
The resultant is always greater than either of the original vectors.
The resultant is always perpendicular to both vectors.
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Open Ended
Describe how to determine the magnitude and direction of the resultant when two vectors are perpendicular to each other.
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Fill in the Blanks
Type answer...
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Open Ended
Suppose that an airplane normally flying at 80 km/h encounters wind at a right angle to its forward motion—a crosswind. Will the airplane fly faster or slower than 80 km/h?
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Open Ended
What is the resultant of two perpendicular vectors?
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35
Multiple Choice
Which of the following statements is true about the perpendicular components of a vector?
They are dependent on each other.
They are independent of each other.
They always have equal magnitudes.
They cannot be resolved.
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Fill in the Blanks
Type answer...
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Open Ended
Explain how the concept of vector components helps in understanding the motion of a projectile, such as a ball thrown at an angle.
40
Multiple Choice
A ball’s velocity can be resolved into which two components?
Horizontal and vertical
Horizontal and diagonal
Vertical and diagonal
Forward and backward
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Multiple Choice
Which of the following best describes the relationship between vectors X, Y, and V as shown in the diagram?
V is the sum of X and Y, which are perpendicular components.
X and Y are equal in magnitude to V.
V is the difference between X and Y.
X and Y are parallel to each other.
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Open Ended
How do components of a vector affect each other?
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Fill in the Blanks
Type answer...
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Fill in the Blanks
Type answer...
50
Multiple Choice
Which of the following statements about projectile motion is correct?
The horizontal component of a projectile's motion is unaffected by gravity.
The vertical component of a projectile's motion is constant.
Both horizontal and vertical components of a projectile's motion are affected equally by gravity.
The horizontal component of a projectile's motion is like a freely falling object.
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Open Ended
Explain why the velocity of a ball rolling along a horizontal surface remains constant, according to the concept of projectile motion.
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Open Ended
What questions do you still have about the relationship between horizontal and vertical components in projectile motion?
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Multiple Choice
How does projectile motion differ from simple straight-line (linear) motion?
Projectile motion involves both horizontal and vertical components, while linear motion involves only one direction.
Projectile motion is always faster than linear motion.
Linear motion involves acceleration in both directions, while projectile motion does not.
Projectile motion only occurs in space.
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