The Need for Speed

What is speed?

• The rate at which an object changes position
• The direction an object is moving
• moving fast
• change in speed or direction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Objects that are moving really fast have a lot of ________.

• Energy
• velocity
• knowlege
• gravity

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the fastest land mammal?

• horse
• cheetah
• peregrine falcon
• mouse

How do we calculate speed?

• r = d / t
• d = s - p
• t = d x t
• r + d + t = s

Tags

NGSS.MS-PS3-1

A person walked 10 miles.  It took them 2 hours.  How fast were they walking?

• 8 mph
• 5 mph
• 2 mph
• 10 mph

What word describes direction?

• up
• now
• never
• 4 o'clock

When an object speeds up, slows down, stops, or starts is called?

• speed
• direction
• acceleration
• time

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What are the two things that must be measured in order to find an objects velocity?

• speed and direction
• acceleration and speed
• direction and time
• distance and rate

Tags

NGSS.MS-PS3-1

What happens to the energy of an object as its speed decreases?

• It stays the same
• It increases
• It decreases
• It first decreases then increases again

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is an example of velocity?

• running 20 mph
• running 20 miles
• running 20 mph quickly
• running 20 mph south