Motion practice

What kind of acceleration occurs when an object speeds up?

• positive

• negative

• neutral

• zero

Xander reached a final velocity of 4.5 m/s for 3.5 seconds. Finley reached a final velocity of 3.6 m/s for 4.2 seconds. Max reached a final velocity of 7.3 m/s for 1.2 seconds. They all started at the same location from rest.

Which lists them from least to most acceleration?

• Max Finley Xander

• Max Xander Finley

• Xander Finley Max

• Finley Xander Max

Tags

NGSS.MS-PS2-2

The table represents the speed of a car in a northern direction over several seconds.

Column 1 would be on the x-axis, and Column 2 would be on the y-axis. Which best lists the titles of each column?

• Column 1 should be titled “Time,” and Column 2 should be titled “Velocity.”

• Column 1 should be titled “Velocity,” and Column 2 should be titled “Time.”

• Column 1 should be titled “Time,” and Column 2 should be titled “Acceleration.”

• Column 1 should be titled “Acceleration,” and Column 2 should be titled “Time.”

The graph represents velocity vs. time for Carla.

Which best describes the graph?

• Carla sped up in the beginning of her trip, stopped, and then slowed down.

• Carla had a greater acceleration in the beginning than in the end.

• Carla slowed down in the beginning of her trip, stopped, and then sped up.

• Carla had a continuous acceleration throughout the entire trip.

Tags

NGSS.MS-PS3-1

_____ is the distance traveled during a specific unit of time.

• Speed

• Momentum

• Displacement

• Acceleration

Koto’s average velocity along her route was 4.5 m/s. She started at her house and traveled 15,000 meters north, 5,000 meters east, 20,000 meters south, and then 5,000 meters west.

What was the time of her trip? (There are 60 seconds in 1 minute.)

• 18.5 minutes

• 20.4 minutes

• 2 hours

• 3 hours

Kai was 200 meters north of the library when he remembered he had to return some books to the library. It took him 200 seconds to do the round trip.

Which best describes Kai’s roundtrip?

• His speed was 1 m/s, and his velocity was 0.

• His speed was 2 m/s, and his velocity was 0.

• His speed was 1 m/s, and his velocity was 1 m/s north.

• His speed was 2 m/s, and his velocity was 2 m/s south.

What is determined by calculating the slope of the position vs time graph?

• position

• velocity

• distance

• displacement

The diagram shows organisms a diver observed during an ocean dive.

What did the diver most likely use as a reference point to describe the position of the squid?

• the ocean surface

• the ocean floor

• the position of the clownfish

• the position of the seaweed

Tyler and his family drove from Atlanta to Baltimore. They traveled a total of 678 miles over 2 days.

What is the reference point in this scenario?

• Atlanta

• Baltimore

• 678 miles

• 2 days