DOL - 7.7 (A+C) - 3/26 - STAAR Review

The Valdez family traveled from New York City to Washington, DC. They left at 12:00 p.m., traveled 95 miles, and stopped to eat in Philadelphia. They continued driving another 135 miles and arrived in Washington, DC, at 5:00 p.m. What was the family’s average speed?

• 19 mph

• 27 mph

• 46 mph

• 230 mph

What is the speed of a marble that traveled a distance of 20 cm in a time of 0.32 seconds?

• 62.5 cm/s

• 50.0 cm/s

• 40.0 cm/s

• 70.0 cm/s

Tags

NGSS.MS-PS3-1

Which object travels at the greater average speed?

• Object 1, because it travels the greater distance per unit of time

• Object 1, because it travels the longer amount of time

• Object 2, because it travels the shorter amount of time

• Object 2, because it travels the shorter distance per unit of time

Tags

NGSS.MS-PS3-1

Which runner stopped for a rest?

• Albert
• Bob
• Charlie

Tags

NGSS.MS-PS3-1

Which best describes this motion in the graph?

• stopped, walking, running home

• running, walking, stopped, walking home

• walking, stopped, walking, running home

• walking, running, running, stopped

Tags

NGSS.MS-PS3-1

During which interval is the object not moving? Select all answers that apply.

• B to C
• C to D
• D to E
• only at point A

Choose the graph that matches the following scenario:

A student walked to his locker at a constant speed, stopped for a few seconds and then continued on the same path to class but a little faster than before.

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