Ch. 2 - Constant Velocity

Speed is different from velocity because

• Velocity has a direction
• Speed uses Distance /Time
• Velocity doesn't include time
• Velocity doesn't include distance

Tags

CCSS.HSN.VM.A.1

What is meant by "x" on the y axis?

• x stands for some random variable

• The author was to lazy to write position

• Since "x" stands for horizontal on a graph grid, it would stand for the position the object traveled horizonally.

Consider the position vs. time graph below for cyclists A and B.

Do the cyclists start at the same point?

• Yes

• No

At t= 7s, which cyclist is ahead?

• A

• B

Tags

NGSS.MS-PS3-1

Which cyclist is travelling faster at t = 3s?

• A

• B

Are their velocities equal at any time?

• Yes

• No

What is happening at the intersection of lines A and B?

• The cyclists stop

• The cyclists speeds are equal

• The cyclists are at the same position at the same time.

Tags

NGSS.MS-PS3-1

What is the velocity of the object that created the position vs. time graph?

• 10 m/s

• 8.3 cm/s

• 8.3 m/s

• 60 m

Tags

NGSS.MS-PS3-1

What is this graph representing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

Tags

NGSS.MS-PS3-1

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

Tags

CCSS.6.RP.A.3B