Position and motion Grade 9

• physics, science
• Secondary Education

Describe where you right now?

How far are you from the nearest hospital?

How far are you from the neraest market?

What do all these descriptions have in common?

OBJECTIVES 

1. Describe a refernce point
2. analyze the dependance of object's position on a reference point

Where is the alphabet K ?

Reference point

A reference point is the starting point you choose to describe the location, or position, of an object.

Analyze 

1.What is the object in motion?

2. Which is the reference point?

3. which direction is the bird moving?

Visual learning

Where is the bicycle positioned?

Position 

A position is an objects distance and direction from a reference point.

Describe the position of any object in the figure given

Position includes

• distance
• direction
• reference point 

If you tell someone that the swing set in this park is about 10 meters from the dead tree in the direction of the oak tree, which is the reference point?

1. the oak tree
2. the swing set
3. the dead tree
4. ten meters

If the library is 2 blocks east of the park and 3 blocks west of the school, where is the school relative to the park?

1. 1 block east
2. 1 block west
3. 5 blocks west
4. 5 blocks east

Which of the following requires knowing only distance, direction, and a reference point?

1. speed
2. position
3. acceleration
4. velocity

Something is in motion if it __________.

1. changes the position
2. changes state
3. changes properties
4. changes distance

Find each building’s reference direction and distance. West is the
specified reference direction.Then use a reference point and the
distance to give directions from the post office to the mall.

	reference direction	distance (km)
mall to post office
library to coffee shop

Describe the words learnt today