Speed Motion Force

Speed is different from velocity because...

• Velocity has a direction.

• Velocity does not include time.

• Velocity does not include distance.

• Speed does not include time.

What is the changing of position over time?

• motion

• reference point

• acceleration

• speed

What is the net force?

• 17 N Right

• 3 N Right

• 3 N Left

• 17 N Left

Tags

NGSS.MS-PS2-2

What is the net force?

• 65 N left

• 65 N right

• 35 N left

• 35 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What does this graph represent?

• Constant speed

• Acceleration

• Not moving

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

• Balanced

• Unbalanced

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 is the person doing from 5 seconds to 10 seconds?

• Walking at a constant speed

• Running fast

• Not moving

• Walking slow

Air resistance pushes against falling

objects and __________________.

• Speeds them up

• Keeps them afloat

• Slows them down

• Spins them

Tags

NGSS.MS-PS3-5

The up-arrow in this diagram is most-likely:

• gravity

• normal

• a push or pull

• friction

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2