velocity & acceleration

Describe the velocity in this graph.

• constant and positive

• constant and negative

• decreasing

• increasing

Velocity is speed with...

• No friends
• A distance
• A direction

What happens after 6 seconds in this graph?

• The car speeds up
• The car has stopped
• The car reverses
• The car slows but is still moving

Which graph shows: A car travelling at a constant speed.

• A
• B
• C
• D

Which graph shows: a car slowing down and coming to a stop.

• A
• B
• C
• D

A train is travelling 10m/s accelerates to 20m/s in 5 seconds, what is it's acceleration? 
A = Change in Speed/Change in Time

• 1m/s/s
• 10m/s/s
• 5m/s/s
• 2m/s/s

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

What kind of quantity has both a magnitude and a direction?

• scalar
• vector
• frame of reference
• time

Which shows a velocity? 

• 10 m
• 10 m/s
• 10 m/s north 
• 10 m/s squared 

Acceleration is

• increasing speed
• decreasing speed
• changing direction
• all of the above