8th grade STAAR WARS: Physics

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

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

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

• 55km
• 32km
• 43km
• 32miles

What would the d-t graph look like for an object travelling at a constant velocity? 

• Horizontal line
• Straight line
• Curved line

What would the v-t graph look like for an object travelling at a constant velocity? 

• Curved line
• Straight line
• Horizontal line

when happened during the last second?

• slowing down
• moving backward and slowing down
• moving backward at a constant speed
• none of these

which one is increasing?

• speed
• position
• time and speed
• time and distance

At what time the object made a U-turn?

• 5th second
• 10th second
• 25th second
• 5th and 25th second

when did the object stayed still?

• first 10 seconds
• first 20 seconds
• 20th ~30th seconds
• 30th~40th seconds

Acceleration is

• increasing speed
• decreasing speed
• changing direction
• all of the above

Tags

NGSS.MS-PS2-2