Physics Chapter 3 Linear motion

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

• Motion
• Speed
• Velocity
• Acceleration

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NGSS.MS-PS3-1

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

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NGSS.MS-PS3-1

A quantity that has both magnitude and direction

• Scalar quantity
• Vector quantity
• Free fall
• Accelaration 

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NGSS.MS-PS2-5

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

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NGSS.MS-PS2-2

Motion under the influence of gravity only 

• Free fall
• Motion
• Speed
• Weight

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NGSS.MS-PS2-4

What to units of measurement are necessary for 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