MOTION, SPEED (s), DISTANCE (d) and TIME (t)

What is the formula to calculate speed?

• S = t/d

• S = d x t

• S = d/t

Tags

NGSS.MS-PS3-1

Bob ran the 50 meter dash. It took him 6.3 seconds. What was his average speed in meters/second?

• 7.9 m/s

• 315 m/s

• 50 m/s

Tags

NGSS.MS-PS3-1

A snowboarder was in a competition. It took her 53 seconds to ride down a 75m hill. What was her average speed in meters per second?

• 0.7 m/s

• 53 m/s

• 1.4 m/s

If a cyclist rides for 45 km in 3 hrs what is his average speed?

• 0.06 km/hr

• 15 km/hr

• 15 hr/km

Tags

NGSS.MS-PS3-1

The ice skaters are in motion. What is a good reference point to describe their motion. 

• Their ice skates
• The wall behind them
• The people in the crowd

What is the formula used to calculate distance if you know the speed and the time?

• D = S X T

• D = S/T

• D = T/S

If it takes Ashley 3 seconds to run from the batters box to first base at an average speed of 6.5 meters per second, what is the distance she covers in that time? 

• 19.5 s
• 2.2 m
• 19.5 m
• 2.2 m/s

What is the formula used to calculate time, if you know the speed and the distance?

• T= S/D

• T= S X D

• T = D/S

Every summer I drive to Michigan. It is 500 miles to get there. If I average 60 mi/hr, how much time will I spend driving? 

• 8.3 hr
• 0.12 hr
• 30,000 hr

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

Tags

NGSS.MS-PS3-1