Motion Review

What is motion?

• When an object remains in the same position.

• When an object changes its position.

• When an object is not visible.

• When an object changes its color.

Tags

NGSS.K-PS2-1

NGSS.K-PS2-2

What is a reference point?

• A point that remains in motion.

• A point that changes its position.

• An indicator that orients you and is the place from where you measure, record, or witness an event.

• A point that has no relevance to an object's position.

How is distance defined in the context of motion?

• The change in direction of an object

• The speed at which an object moves

• How far an object has moved

• The time it takes for an object to move

Which of the following is a correct example of displacement?

• A car travels 100 km north and then 100 km south, resulting in a displacement of 200 km.

• A runner completes a 400 m track and ends where they started, resulting in a displacement of 0 m.

• A ball is thrown upwards and lands in the same spot, resulting in a displacement of twice the height reached.

• A person walks around their neighborhood and returns home, resulting in a displacement equal to the total distance walked.

If you ran 2 km in 10 minutes, what would be your speed in km/min?

• 0.2 km/min

• 2 km/min

• 5 km/min

• 0.5 km/min

What is the speed of sound in dry air as given in the example?

• 200 m/s

• 343 m/s

• 2 km/s

• 1000 m/s

Tags

NGSS.HS-PS4-1

If a lightning bolt strikes the ground 2 km away, how long will it take for the sound to reach you according to the example?

• 2 seconds

• 5.8 seconds

• 10 seconds

• 343 seconds

Tags

NGSS.MS-PS3-1

What is average speed defined as?

• The speed of a vehicle at a specific point in time

• The maximum speed reached during a trip

• The total distance traveled divided by the total time traveled

• The speed shown on the speedometer

According to the example provided, if you are driving to Clemson to watch the National Championship football team play, and it is a total distance of 300 miles from your house which takes 5 hours to get there, what would be your average speed?

• 60 mi/hr

• 70 mi/hr

• 5 mi/hr

• 300 mi/hr

What does instantaneous speed refer to?

• The speed of a vehicle averaged over the entire trip

• The speed of a vehicle at a specific point in time

• The total distance traveled without considering time

• The minimum speed reached during a trip