Average Speed

The correct equation to calculate speed is

• distance ÷ time
• time/distance
• distance x time
• distance/time²

Which of the following best describes the velocity of an object?

• 100 miles/hour south
• 65 miles
• 20 miles east
• 40 meters per second

Tags

NGSS.MS-PS3-1

What is the difference between the velocity and the speed of an object?

• Velocity is a change in distance over time, speed is the change in direction over time
• Velocity has a direction associated with it, while speed has no specific direction
• Velocity has no direction associated with it, while speed has a specific direction.
• Velocity is the change in speed over time, while speed is the change in distance over time.

Tags

NGSS.MS-PS3-1

What is the speed of a car that travels 400 meters in 20 minutes? (6.8C)

• 20 miles/hr

• 20 m/min

• 800 m/min

• 200 miles/hr

Tags

NGSS.MS-PS3-1

A block pulled 0.90 m to the right 2.5 s

• 0.36

• 2.78

• 3.4

• 1.6

Tags

NGSS.MS-PS3-1

A bus travels 20 km in 30 minutes. What is the average speed of the bus.

• 20km/h

• 30km/h

• 40km/h

• 50km/h

What was the average speed of the toy car during the two trials to the nearest tenth of a m/s?

• 1.4 m/s

• 0.7

• 14

• 113.4

Tags

NGSS.MS-PS3-1

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Tags

NGSS.MS-PS3-1

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s
• 15 m/s
• 0.067 m/s
• 15 mph

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