6.1 Describing Motion

Which is the best reason for not using a moving car as a reference point?

• It is difficult to determine which direction motion is occurring.

• The car will get out of sight too quickly

• It is difficult to tell other people which car you are using

• The car has moving parts, like rolling tires, that can be distracting.

_______ is the length of the path between two points.

• distance

• reference

• statistic

• law

The SI unit for measuring distance is the ______.

• Meter

• liter

• gram

• foot

An object is in ____ if its position changes relative to another object.

• motion

• reference

• gravity

• stationary

Tags

NGSS.MS-PS2-2

1,000m - ______km

• 1

• 1,000

• 10

• .01

1,000cm = _______meters

• 10

• 100

• 1

• 1,000

Jeff is in a stationary school bus. Which is the best reference point for him to use to determine when the bus starts to move?

• the front entrance of the school

• the school bus sitting next to him

• a car waiting to pick up another student

• a student walking on the sidewalk

A ______ is a place or object used for comparison to determine if something is in motion.

• reference point

• potent potable

• cross interestion

• slope

Which of the following is the best reference point for describing the motion of the planets in our solar system?

• The sun

• Mars

• Jupiter

• The Moon

Tags

NGSS.MS-ESS1-2

Suppose you are in a train. What objects would make good reference points to determine whether or not the train is moving?

• Signs on streets

• Parked cars

• Trees

• the seat next to you