this is my physics lab... these are just some pre-lab questions that need to be
ID: 1406365 • Letter: T
Question
this is my physics lab... these are just some pre-lab questions that need to be answered and I am in a crunch! any help with the fill in the blank is appreciated :) THANKS!
Questions
Answer the following questions by: increasing, decreasing, constant, or when a value is known state the value and Label the units appropriately assuming constant acceleration.
What does a horizontal line mean on a displacement-time graph?
The distance to the sensor is __________
The value of the velocity is _____________
The value of acceleration is ____________
What does a horizontal line (above 0) mean on a velocity-time graph?
The distance to the sensor is __________
The velocity is _____________
The acceleration is ____________
What does a constant positive slope on a displacement-time graph mean?
The distance to the sensor is __________
The velocity is _____________
The acceleration is ____________
What does a constant negative slope on a displacement-time graph mean?
The distance to the sensor is __________
The velocity is _____________
The acceleration is ____________
What does a positive increasing slope (concave up) on a displacement-time graph mean?
The distance to the sensor is __________
The velocity is _____________
The speed is ______________
The acceleration is ____________
What does a negative increasing slope (concave up) on a displacement-time graph mean?
The distance to the sensor is __________
The velocity is _____________
The speed is ______________
The acceleration is ____________
What does a positive decreasing slope (concave down) on a displacement-time graph mean?
The distance to the sensor is __________
The velocity is _____________
The speed is ______________
The acceleration is ____________
What does a negative decreasing slope (concave down) on a displacement-time graph mean?
The distance to the sensor is __________
The velocity is _____________
The speed is ______________
The acceleration is ____________
Explanation / Answer
a) a horizontal distance - time graph mean that
the distance is not changing with time , and the object is at rest
hence , distance to the sensor is constant
the value of velocity is 0
value of accelration is 0
b)
for horozontal velocity graph mean
the object is moving with constant velocity
distance to the sensor is increasing
the value of velocity is constant
value of accelration is zero
c)
positive slope on displacement graph
as velocity = slope of displacement - time graph
distance to the sensor is increasing
the value of velocity is positive
value of accelration is zero
d)
negative slope on displacement graph
as velocity = slope of displacement - time graph
distance to the sensor is decreasing
the value of velocity is negative
value of accelration is zero
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