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Concept Test of a Falling Ball
All questions are based on kinematics of a falling ball.
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1 The following graph is obtained from a ball being tossed up and fell freely. What does the vertical and horizontal axis of this graph represent?
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A acceleration in y direction versus time
B displacement in y direction versus time
C velocity in y direction versus time
D time versus time
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2 The following graph is obtained from a ball being tossed up and fell freely. What does the vertical and horizontal axis of this graph represent?
*
A acceleration in y direction versus time
B displacement in y direction versus time
C velocity in y direction versus time
D time versus time
2
3 The following graph is obtained from a ball being tossed up and fell freely. What does the vertical and horizontal axis of this graph represent?
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A acceleration in y direction versus time
B displacement in y direction versus time
C velocity in y direction versus time
D time versus time
3
4 You are throwing a ball straight up in the air. At the highest point, the ball ’ s
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A velocity and acceleration are zero
B velocity is non zero but its acceleration is zero
C acceleration is non zero, but its velocity is zero
D velocity and acceleration are both non zero
5 When the ball is moving upwards, gradient of displacement-time graph is?
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A positive and increasing in magnitude
B positive and decreasing in magnitude
C negative and increasing in magnitude
D negative and decreasing in magnitude
6 When the ball is moving downwards, gradient of displacement-time graph is?
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A positive and increasing in magnitude
B positive and decreasing in magnitude
C negative and increasing in magnitude
D negative and decreasing in magnitude
7 The following GREEN graph is obtained from a falling ball on Earth. What is a likely cause for the BLUE graph if this is the velocity in y direction versus time graph?
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A due to higher air resistance
B due to lower air resistance
C due to higher initial velocity
D due to lower initial velocity
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8 The following GREEN graph is obtained from a falling ball on Earth. What is a likely cause for the TEAL graph if this is the velocity in y direction versus time graph?
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A due to higher mass with higher air resistance
B due to lower mass with higher air resistance
C due to a higher gravitational acceleration
D due to a lower gravitational acceleration
8
Q9 and Q10 are questions that are on general measurement.
9 In the case of a constant overestimation of the correct measurement will most likely result in what kind of error?
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For example in vernier caliper and micrometer
A no error
B random error
C positive systematic error
D negative systematic error
10 In taking measurements, it will most likely result in what kind of error?
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A no error
B random error
C systematic error
D all of the above
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