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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