Reference Point

We can describe a moving object by using anything that stays in place as _______________.

• position

• motion

• reference point

It can be used as ___________ to describe a moving object?

• compass

• reference point

• direction

A reference point helps you describe the position of a moving object.

• true

• false

Street science bridges traffic lights and buildings are example of reference point.

• true

• false

Tags

NGSS.MS-PS2-2

Define reference point

• A moving point used to determine the position of an object

• A place or object that changes its position constantly

• A place or object that has no significance in determining the position of an object

• A place or object used for comparison to see if something is in motion

An object is in motion if it changes position relative to

• a reference point

• speed

• the distance traveled

• constant speed

The position of a runner in a race changes as time passes. What could a reference point to describe the change in position? 

• the starting line

• the runner’s speed

• the runner’s right foot

• another runner

​ (a)   is any change in the position or location of an object. A ​ (b)   is a point in space used to compare the position of things. ​ (c)   is how far an object travels as it moves from one position to another (total).

• Motion

• reference point

• Distance

• Speed

• Density

A moving car can be used as a reference point to describe the position of a moving motorcycle.

• true

• false

Determine the reference point for each situation below:

Chloe is two meters to the left of the shop