Physical Science Cumulative A Part 5

Which scenario best describes an object with a displacement of zero?

• A train moves uphill as it travels in a straight path.

• A person walks 2 miles north and 2 miles west.

• A ball rolls from the top to the bottom of a hill.

• A race car starts and ends at the same point on a track.

Sonya is playing a board game, and each space on the board game measures 1 centimeter. She moves her game token 5 spaces up from the start position. Then she moves it 5 spaces to the left. Finally, Sonya moves her token 2 spaces down.

What is the total distance the token moved?

• 2 cm

• 8 cm

• 12 cm

• 15 cm

An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the right. What is the displacement of the object?

• 1

• 5

• 7

• 13

Which scenario best describes motion?

• a toy train in position 4 on a number line

• a race track that is 100 meters long

• a ball rolling from point A to point B

• a student living 150 miles from Chicago

A linear track begins at 0 meters and has a total distance of 100 meters to the finish line. Juliet starts at the 10-meter mark while practicing for a race.

After running 45 meters, how far is she from the beginning of the track?

• 10 meters

• 35 meters

• 45 meters

• 55 meters

An object starts at position 12 on a horizontal line with a reference point of 0. What is the position of the object if it moves 14 units to the left?

–26

• -26

• -2

• 2

• 26

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mark on the sidewalk next to the snail.

What will Julie use the mark for initially?

• acting as a reference point for detecting motion

• determining the displacement of the snail

• acting as a standard unit of measure

• determining how fast the snail moves

The diagram shows a vertical number line.

What is the position of point X?

• -16

• -12

• 12

• 16

Keisha told her friend that she can get to the town library by walking one mile east, turning left, and then walking a half a mile north.

Which best describes how Keisha can improve these instructions to better help her friend find the library?

• using meters as the unit instead of miles

• drawing a picture of the library on a line diagram

• estimating the amount of time to get to the library

• providing a reference point

Four different objects are placed on a number line at 0. The chart describes the motion of each object.

Using the information in the chart, the distance and displacement of each object can be determined. Which object has a distance that is three times as great as its displacement?

• W

• X

• Y

• Z