You are clever at calculating speed :)

A pilot riding a plane says the following : the speed of the plane is 600 km/hr and we are heading toward the east. Speed and direction can be given another term, what is it?

• Acceleration

• Velocity

• Mass

• Nothing

In science anything that has direction and magnitude (or number), is known as :

• arrow

• slope

• vector

• horizon

In a distance time-graph, you can calculate the speed by calculating the ------------------------of the line.

• angle

• width

• height

• slope

To calculate the speed using a line in a distance-time graph you should pick----------------------on this line.

• one point

• two points

• three points

• No points

Tags

NGSS.MS-PS3-1

The equation for calculating the slope of a line is :

• (Y2-Y1)/(X2-X1)

• (Y1-X1)/(Y2-X2)

• (X2-X1)/(Y2-Y1)

• X2/X1

A point has an X and a Y, what does the "Y" of each point tell you about?

• Distance

• Time

• Mass

• nothing

What does the X of each point tell you about?

• Distance

• Time

• Mass

• Nothing

Do you know that you are cleaver and can solve any question on distance-time graphs

• Not really

• No

• I am very confident

  Yes i can

• Maybe

Look at the red line, we need to calculate the speed from this line only, two points were picked for you,

(4,40) ( 8,80), using the slope formula, which of the choices below is the right way for calculating the speed of this object? ( look at the red line only)

• (80-40)/(8-4)

• (8-4)/(80-40)

• (30-10)/(8-3)

• (8-3)/(80-40)

Tags

NGSS.MS-PS3-1

What would be the speed of the object in the red line? do it mentally , you are smart enough (units are km and hr)

• 5 km/hr

• 10 km/hr

• 2 km/hr

• 1 km/hr

Tags

NGSS.MS-PS3-1