Distance, Displacement, Speed & Velocity

An airplane is flying at 635 km per hour at an altitude of 35,000 m. It is currently over Kansas and is approximately 16 minutes ahead of its scheduled arrival time. What is its velocity?

• 635 km/h

• 16 m/min

• 35 000 m/s

• This cannot be determined without further information about its direction.

When measuring the speed of a car, the standard unit used is

• mph.

• ft/s².

• m/s.

• Δv / t.

Tags

NGSS.MS-PS3-1

On a speed-time graph, a car moving on a straight road shows a line with a negative slope. This indicates that the car is

• speeding up.

• slowing down.

• not moving.

• traveling at a constant speed.

Tags

NGSS.MS-PS3-1

A car is considered to be moving when

• you see the car change lanes on the highway.

• the car's speedometer shows an increase in speed.

• the car's odometer reading is greater than the actual distance traveled.

• the car changes its position relative to a fixed traffic light.

Which straight-line acceleration indicates a car increasing its speed?

• 0 m/s²

• −15 m/s²

• 4 m/s²

• All of the above

Which of the following speeds is the most accurate for a commercial airplane?

• 500 miles per day

• 500 miles per hour

• 500 miles per minute

• 500 miles per second

If John travels 300 kilometers in 5 hours, his average speed can be calculated using the formula

• distance/time.

• distance × time.

• time − distance.

• time + distance.

When a car moves northward with a constant speed, the ____ of the car consists of its speed and direction.

• velocity

• instantaneous speed

• average speed

• displacement

Imagine a courier delivery person who needs to deliver a package across a 500.0 m distance within a city. If they manage to do it in 1.6 min, what would be their average speed?

• 0.19 m/s.

• 5.2 m/s.

• 96 m/s.

• 312 m/s.

During a road trip, a family travels at an average speed of 55.0 mi/h for 4.25 h. How far have they traveled?

• 0.08 mi.

• 13 mi.

• 55 mi.

• 234 mi.