Motion in one dimension.

An increase or decrease in speed or change in direction is known as-

• acceleration

• time

• speed

• velocity

The distance an object moves per unit of time represents the-

• speed

• rate

• velocity

• acceleration

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NGSS.MS-PS3-1

Average speed is calculated by-

• Total time/Total distance

• Total speed/ Total acceleration

• Total distance/Total time

• Total velocity/Total distance

What is motion measured relative to?

• time

• distance

• reference point

• rate

If two speedboats pass each other going opposite directions and each are moving 10Km/hour, they have the same-

• distance

• velocity

• length

• speed

If a runner is increasing her speed, would her initial speed be more or less than her final speed?

• It would be the same

• It would be more

• It would be less

• It would depend on what speed she started at and what speed she ended at

Velocity is determined by

• distance the object has traveled

• average speed of the object

• knowing the speed and direction of the object's motion

• instantaneous speed of the object

7. A car traveling at 90 kilometers/hour when it suddenly stops. The passengers in the car will

• continue to move in a straight line and will slide forward in the car.

• come to a stop at the same time the car stops

• be pushed against the door on the passenger side

• be pushed against the door on the driver's side

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NGSS.MS-PS2-2

Final position minus the initial position is called 

• displacement
• distance
• magnitude
• time interval

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

Tags

NGSS.MS-PS2-2