reference position Sept 21, 2020

• Science
• Secondary Education

Reference position 

Grade-9

Sept 21, 2020

Ms.Famin

INSTRUCTIONS 

Mute your mics do not on unless instructed

No discussions with each other only with teacher unless instructed

Write your names in the chat section 

Raise your hands before talking 

unscramble THE WORDS

objectives

1. Describe the reference direction in two dimensions

2. Compare distance and displacement

Sometimes direction is described using the words positive

or negative. The reference direction is the positive (+) direction.

The opposite direction is the negative (-) direction.

Locate your classmate's home [use directions ]

If East is the reference direction, the museum is in _________ direction from the bus stop

1. positive
2. up
3. down
4. negative

If East is the reference direction, the library is in _________ direction from the bus stop

1. up
2. positive
3. negative
4. down

Observe the image 

Which line represents distance and which represents displacement?

Give reason 

ANALYZE

The boy wants to move from point A to Point C.

How much is the displacement?

How much is the distance? 

https:

From 6:35 to 7:15, the tip of which hand of the clock experiences greater displacement?

1. the hour hand
2. the minute hand
3. both experience the same displacement
4. it depends on the reference point