Unit 2 Review - Retake

The slope of a velocity time graph tells us about the ___ of the object.

• elevation of the path

• velocity

• acceleration

• position

A horizontal line on a velocity time graph means the object ___.

• has a velocity of 0

• is not moving

• is moving at a constant velocity

• is moving on a flat path

On a velocity time graph a line with a positive slope above the x-axis means:

• the object is speeding up

• the object is slowing down

• the object is going up hill

• the object is getting farther away from the reference point

On a velocity time graph a line with a positive slope below the x-axis means:

• the object is speeding up

• the object is slowing down

• the object is going up hill

• the object is getting farther away from the reference point

On a velocity time graph a line with a negative slope below the x-axis means:

• the object is speeding up

• the object is slowing down

• the object is going down hill

• the object is getting farther away from the reference point

On a velocity time graph a line with a negative slope above the x-axis means:

• the object is speeding up

• the object is slowing down

• the object is going down hill

• the object is getting closer to the reference point

To get displacement from a velocity time graph you would find the

• slope of the tangent line at the final time

• area under the curve

• length of the line

• slope of the line

To find the slope of a graph you look at the

• y intercept

• x intercept

• rise divided by the run

• run divided by the rise

What is the initial velocity of the coin if you drop it at the top of the Empire state building?

• zero

• positive

• negative

• need more information

A baseball is thrown straight up into the air - what is the acceleration at its tallest point?

• -9.80 m/s²

• 9.80 m/s²

• 0 m/s²

• Need more information