Describing motion

A place or object used for comparison to determine if another object is in motion is called a

• comparison point
• reference point
• point of view
• motion detector

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

_____ is the process of changing position

• direction
• displacement
• speed
• motion

What is a reference point?

• an object or point you use to describe the location of other objects.

• an object

• a position

• a point of reference

What is a position?

• where a person is

• where an object is

• where you see something

• where the reference point is

Which animal is the reference point?

• Dog

• Cat

• Rabbit

• Rat

• Bird

Which animal is 2 points west of the reference point?

• Dog

• Cat

• Rabbit

• Rat

• Bird

Which direction on the number line would represent East?

• Zero

• Positive direction

• Negative direction

Which direction on the number line represents WEST?

• Zero

• The positive direction

• The negative direction

The starting point you use to describe motion of an object is ____________

• Motion

• Reference point

• Position

• None of the above