Motion

^{How fast an object moves; the distance traveled per unit of time}

• Motion
• Speed
• Velocity
• Acceleration

The speed at any instant

• Average speed
• Velocity
• Free fall
• Instantaneous speed

The total distance traveled divided by the time of travel

• Scalar quantity
• Free fall
• Acceleration
• Average speed

An object´s speed and direction of motion

• Vector
• Scalar quantity
• Velocity
• Free fall

A quantity that has both magnitude and direction

• Scalar quantity
• Vector quantity
• Free fall
• Accelaration 

A quantity that has only a magnitude, not a direction 

• vector quantity
• result
• speed
• scalar quantity

The rate at which velocity changes with time; the change in velocity may be in magnitude, or direction, or both. 

• free fall
• acceleration
• motion
• speed

formula describing speed?

• distance/acceleration

• distance/time

• time/acceleration

• distance/acceleration

What kind of speed is registered by an automobile speed-ometer: 

• average speed
• instanteneous speed 

What is the average speed in km/h of a horse that gallops a distance of 15 km in a time of 30 min?

• 30 km/h
• .5 km/h 
• 2 km/h
• 5 km/h