Motion Equation practice 11

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

Tags

NGSS.MS-PS3-1

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

• 55km
• 32km
• 43km
• 32miles

Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?

• 400 minutes
• 100 minutes
• 100 seconds 
• .25 seconds 

Scott travels north 5 miles and then goes west 3 miles before coming straight back south 2 miles. What is his distance?

• 10
• 7
• 8
• 6

David walks 3 km north, and then turns east and walks 4 km. What is the distance?

• 7 km
• 3 km
• 4 km
• 1 km

An dog runs 35 m right then 45 m left in a total time of 20s. What was its velocity?

• +0.5 m/s

• -0.5 m/s

• +4 m/s

• -4 m/s

An bug flies runs 3.5 m left then 4.5 m left in a total time of 20s. What was its speed?

• 0.05 m/s

• +8 m/s

• 15.75 m/s

• 0.4 m/s

Tags

NGSS.MS-PS3-1

Orande rides his bike 130 m North then 240 m South and finally 90 m North in a total time of 80 s. What was his velocity?

• -0.25 m/s

• -20 m/s

• 23 m/s

• -46 m/s

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction