Graphs - Grade8

• Science
• Secondary Education

Science 

Grade-9

Sept 23, 2020

Ms.Famin

INSTRUCTIONS 

Do not on the mic unless instructed to

write your names in the Chat section

Do react when called for or facing any issues let the teacher know through chat.

Only discussion with teacher unless asked for

Raise your hand before talk 

OBJECTIVES

1. Describe displacement-time  graphs 

2. Analyze displacement-time  graphs

3. Solve for speed from D-T graphs

DISTANCE-TIME GRAPH 

Two quantities are measured here while studying motion.

comparing SPEEDS-Horse A ,B

The graph below represents the motion of a swimmer. Which statement best describes the swimmer's motion?

1. The swimmer is at rest
2. The swimmer is in constant motion
3. The swimmer's velocity is changing
4. The swimmer is accelerating

During which time period did the object slow down?

1. 0-3 seconds
2. 3-5 seconds
3. 5-8 seconds
4. 8-10 seconds

Which term describes the motion in the time period from 3 to 5 seconds?

1. at rest
2. constant speed
3. slowing down
4. speeding down

During which time period is the walker at a constant speed

1. 5-1 5 seconds
2. 20-30 seconds
3. 15-20 seconds
4. 0-5 seconds

During which time did the walker slow down

1. 20-30 seconds
2. 0-5 seconds
3. 15-20 seconds
4. 5-15 seconds

What is the distance traveled by mouse at 15 s?

1. 2 m
2. 0 m
3. 4 m
4. 7 m

calculate speed from graph

CHALLENGE
Analyze- Whether you could have a vertical line on a displacement- time graph. why or why not ?