Position Velocity Acceleration

the difference between the initial, or starting, position and the final position

• reference point

• motion

• position

• displacement

a measure of the distance an object travels in a given amount of time.

• velocity

• motion

• speed

• vector

Tags

NGSS.MS-PS3-1

the speed and the direction of a moving object

• velocity

• acceleration

• speed

• vector

a measure of the change in velocity during a period of time

• velocity

• acceleration

• speed

• vector

Shona cycles at an average speed of 8 km per hour. How far has she travelled if she cycles for 4 hours?

• 55km

• 32km

• 43km

• 12km

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

A girl is pedaling her bicycle at a speed of 0.10 km/min.  How far will she travel in two hours? (pay attention to units) 

• 20 km 
• .2 km
• 3 km 
• 12 km 

The graph shows Ashley riding her bike to Maria's house.

What was occurring from point B to point C?

• She was increasing her speed.

• She stopped for 4 minutes

• She was decreasing in speed

• She was moving forward at a steady 800 m/s

Tags

NGSS.MS-PS3-1

For the third part of Red's graph, what is it doing when the line is going downward?

• Moving away from its starting position

• Staying still

• Returning to its starting position

Tags

NGSS.MS-PS3-1

The graph represents the motion of an object. According to the graph, as time increases, the velocity of the object

• decreases

• increases

• remains the same

Answer explanation

Velocity is the slope of the line. Since the slope does not change, the velocity is constant.

Tags

NGSS.MS-PS3-1