Lesson on Graphing Speed and Velocity

Motion, Displacement-Time, Velocity-Time Graphs

by SciDept Twenty Twenty-One

​Objectives

​1. To correctly interpret displacement-time and velocity-time graphs

​

​2. To patiently watch and learn from the inserted videos to answer the test items correctly

​

​3. To take mandatory screen breaks seriously

Multiple Choice

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes

• It doesn't

• It slows down

• Its speeds up  

Multiple Choice

In each of the following cases, determine where the car has no acceleration?

• A car speeds up after a stoplight turns green.

• A car slows down as it approaches a red light

• A car with the cruise control set at 80 km/h going down a straight highway

• A car turning a curve at a constant speed

Multiple Choice

The SI unit for acceleration is

• mph

• ft/sec

• m/s²

• m/s

Multiple Select

When are you undergoing an acceleration in a car? (Choose all that are correct)

• speed up

• slow down

• make turns

• constant speed

Multiple Choice

A negative acceleration means that your object is _____. 

• not accelerating

• not moving

• speeding up 

• slowing down 

Multiple Choice

A positive acceleration means that your object is _____.

• not accelerating

• not moving

• speeding up

• slowing down

Multiple Choice

The equation for acceleration is...

Multiple Choice

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest.  Find the acceleration.

• 30 m/s

• 24 m/s²

• 9 m/s²

• 81 km/hr

Multiple Choice

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Multiple Choice

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

• 2.2m/s²

• 7.0m/s²

• 5.7m/s²

• 70m/s²

​Please take a 3-minute screen break now.

​You may walk around the house, jog in place, close your eyes, drink water etc.

Multiple Choice

Which of the graphs shows that one of runners started 10 yards further ahead of the other?

Multiple Choice

In which of the following graphs below are both runners moving at the same speed?

Multiple Choice

Match the description to the graph:

"The car stopped."

Multiple Choice

Match the description to the graph:

"The car is traveling at a constant speed."

Multiple Choice

Match the description to the graph:

"The speed of the car is increasing but its acceleration is not constant."

Multiple Choice

Match the description to the graph:

"The car is coming to a stop."

Multiple Choice

Segment O-A The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Multiple Choice

Segment A-B The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Multiple Choice

Segment B-C The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Multiple Choice

Segment C-D The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Multiple Choice

Segment D-E The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Multiple Choice

Segment E-F The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Multiple Choice

Which runner won the race?

• Albert

• Bob

• Charlie

Multiple Choice

Which runner stopped for a rest?

• Albert

• Bob

• Charlie

Multiple Choice

How long did Charlie stop for a rest?

• 2.5 seconds

• 2 seconds

• 3 seconds

• 5 seconds

Multiple Choice

How long did Bob take to complete the race?

• 17 seconds

• 12 seconds

• 14 seconds

• 15 seconds

​Please take a 3-minute screen break now.

​You may walk around the house, jog in place, close your eyes, drink water etc.

Multiple Choice

A deer running 15 meters per second due west.Vector or scalar?

• Scalar

• Vector

Multiple Choice

Wind blowing at 20 mph.Vector or scalar?

• Scalar

• Vector

Multiple Choice

Distance and direction of an object's change in position from a starting point

• displacement

• distance

• motion

• reference point

Multiple Choice

What is happening at D?

• Stationary

• Accelerating

• Fast steady speed; moving away from the starting position

• Slower steady speed; moving away from the starting position

Multiple Choice

What does this graph represent?

• Constant speed

• Acceleration

• Not moving

Multiple Choice

What is speed?

• how far you go

• how much distance is covered over a period of time

• how fast you accelerate

• the change in the location of a object

​Please take a 3-minute screen break now.

Multiple Choice

The correct equation to calculate speed is

• distance/time

• time/distance

• distance x time

• distance/time²

Multiple Choice

What is velocity?

• the quickness of an object

• the location of an object

• acceleration

• speed in a specific direction

Multiple Choice

Find the velocity of a truck that travels 75 miles north in 2.5 hours.

• 187.5 mph north

• 30 mph north

• 300 mph north

• 200 mph north

Multiple Choice

Polar bears are extremely good swimmers.  If a polar bear is swimming with an average of 2.6 m/s, how far will it have traveled after 120 seconds?

• 46.2 m

• 120 m

• 312 m

• 456.3 m

Multiple Choice

What is the speed of a car that traveled 32 m in 2 seconds?

• 64 m/s
• 34 m/s
• 16 m/s
• 0.0625 m/s

Multiple Choice

Joe was able to travel 300 m in 19 seconds. What was his average velocity?

• 15.8 m/s

• 0.063 m/s

Multiple Choice

Billy was traveling at 25 m/s for 23 seconds. How far did he travel?

• 1.09 m

• 575 m

• 0.92 m

Multiple Choice

Andres travelled at a speed of 4 m/s. How long did it take him to travel 724 m?

• 0.006 s

• 181 s

• 2896 s

Multiple Choice

Find the velocity of a plane that traveled 3000 miles west in 5 hours.

• 65 mph west

• 6 mph west

• 600 mph west

• 6000 mph west 

Multiple Choice

Find the average speed of a train that traveled 540 km in 6 hours?

• 80 km/h

• 100 km/h

• 90 km/h

• 3240 km/h

Multiple Choice

How far will a person go if they jog for 2 hours at a speed of 12 km/hr?

• 6 km

• 0.5 km

• 10 km

• 24 km

Multiple Choice

It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles/hr.  How many miles lie between the two cities? 

• 34 miles 

• 420 miles

• 120 miles 

• 360 miles 

Multiple Choice

What does this graph represent?

• Constant Speed

• Acceleration

• Not moving

Multiple Choice

How long did it take this object to travel back to its reference/starting point?

• 20 s

• 30 s

• 60 s

• 100 s

Multiple Choice

At 60 seconds, how far had this object traveled? 

• 0 m

• 10 m

• 20 m

• 40 m

​Please take a 3-minute screen break now.

​You may walk around the house, jog in place, close your eyes, drink water etc.

Fill in the Blank

The gradient of a velocity-time graph represents __________.

Fill in the Blank

The area under a velocity-time graph represents __________.

Fill in the Blank

A flat section of a velocity-time graph represents __________.

Fill in the Blank

Describe the motion in section D.

Multiple Choice

Explain the motion from 0-1s

• Stationary

• Constant speed

• Constant acceleration

• Non-constant acceleration

Multiple Choice

Explain the motion from 1-3s

• Stationary

• Constant speed

• Constant acceleration

• Non-constant acceleration

Multiple Choice

Explain the motion from 3-5s

• Stationary

• Constant speed

• Constant acceleration

• Non-constant acceleration

Multiple Choice

Explain the motion from 5-7s

• Stationary

• Constant speed

• Constant acceleration

• Constant deceleration

Multiple Choice

Explain the motion from 7-8s

• Stationary

• Constant speed

• Constant acceleration

• Constant deceleration

Multiple Choice

Explain the motion from 8s onwards. The blue line runs along the x-axis. Hint: What is the velocity from 8s onwards.

• Stationary

• Constant speed

• Constant acceleration

• Constant deceleration

Multiple Choice

Where is the acceleration the highest?

• 0-1s

• 1-3s

• 3-5s

Multiple Choice

Where is the deceleration the highest?

• 5-7s

• 7-8s

Multiple Choice

Explain the motion

• Stationary

• Constant speed

• Constant acceleration

• Non-constant acceleration

​Please take a 3-minute screen break now.

​You may walk around the house, jog in place, close your eyes, drink water etc.

​Let us reflect on the following points:

Open Ended

​1. With the fast-paced lives we are living(slower maybe because we are at home), what is the importance of deliberately "slowing down"?

Open Ended

How can we maintain the forces that drive us to live, love and push on?