Motion

___ refers to how fast an object is moving.

• Speed

• Velocity

• Acceleration

• Motion

___ refers to the rate at which an object changes position.

• Speed

• Velocity

• Acceleration

• Motion

Which is an example of speed?

• A car driving 55 miles per hour south.

• A bicyclist traveling 10 meters per hour toward the next town.

• A roller coaster is traveling 10 meters per second.

• A rocket blasting off at 2,500 meters per second toward space.

Which is an example of velocity?

• A car driving 55 miles per hour south.

• A bicyclist traveling 10 meters per hour.

• A roller coaster is traveling 10 meters per second.

• A rocket blasting off at 2,500 meters per second.

Speed or Velocity?:

A turtle is crawling 34 cm/min.

• Speed

• Velocity

• Neither

• Both

Speed or Velocity?:

A train is travelling North 220 km/hr

• Speed

• Velocity

• Neither

• Both

Select the unit for speed

• m/s

• ms

• m/s^2

• ms^2

88 m/s north

• Speed
• Velocity
• Acceleration

What is acceleration?

• A change in speed

• Speed + Direction

• Traveling at a constant speed

• Only time

Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand