Midterm Review

How do you know an object is in motion?

• You must see it

• You can hear it

• It changes position

What is a reference point used for?

• To look up a definiton

• To describe the location of an object

• To apply force on an object

If a man walks 200 meters down the street, stops at McDonald's for from fries, then walks 50 m more to his destination, what is his total distance traveled?

• 150m

• 250m

• More information is needed

What is speed?

• How far an object moves in a given amount of time

• The ability to do work

• A push or pull on an object

Tags

NGSS.MS-PS3-1

In the equation for speed, what does the variables "d" stand for?

Tags

NGSS.MS-PS3-1

In the equation for speed, what does "t" stand for?

If an object is traveling at constant speed, what is true?

• It is traveling the same amount of distance every second

• It is traveling a varying, or changing, amount of distance every second

• It is speeding up and slowing down

Choose all of the correct units of measurement for distance:

• meters (m)

• miles (mi)

• Newtons (N)

• seconds (s)

• kilometers (km)

Choose all of the correct units of measurement for speed:

• m/s

• kg/N

• m/s/s

• km/hr

• mi/hr

Tags

NGSS.MS-PS3-1

On a distance vs. time graph, distance and time are plotted on the x and y axis. What is true about a positive slope line on this type of graph?

• The object's distance is increasing as time passes

• The line shows the speed of the object

• Steeper lines shows faster speeds

• All of the above

Tags

NGSS.MS-PS3-1