Module 2 Review

Module 2
Review

Lesson 2.1

• Motion

• Reference Points

• Directions and signs

• Change in position over time

• If position does not change, object is not moving

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mOTION

• Helps identify if an object is moving

• Point of comparison

• Tells you the position, location, and distance of the object

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Reference Points

Left is negative and right is positive

North and East are positive

South and West are negative

Signs and Directions

Multiple Choice

I'm going to the left. What sign will this be?

• Positive

• Negative

Multiple Choice

An object does not change its position. Is the object moving?

• NO

• YES

Lesson 2.2

• Analyzing a distance VS time graph

Multiple Choice

Which line is the fastest?

• A

• B

• C

• D

Multiple Choice

Which line is slowest?

• A

• B

• C

• D

Multiple Choice

Which line indicates that the object is not moving?

• A

• B

• C

• D

Multiple Choice

How many meters did the object move from 12:30-14:00?

• 20

• 40

• 60

• 70

Lesson 2.3

• total distance

• Displacement

• SUM of all distance an object travels

• direction not involved

Total distance

• distance between start point and end point

• direction is involved

​​displacement

Multiple Choice

Jerry walked from home to school, then from the school to the park. What is his total distance?

• 2 km

• 5 km

• 8 km

• 10 km

Multiple Choice

Jerry walked from home to school, then from the school to the park. Finally he returned home. What is his displacement?

• 0 km

• 5 km

• 8 km

• 10 km

Lesson 2.4

• Scalar

• Vector

• Speed

• Velocity

• has magnitude

• no direction

​​Scalar

• has magnitude

• has direction

vector

• vector

• amount of displacement an object travels over time

• has magnitude and direction

velocity

• scalar

• amount of distance an object travels over time

• has magnitude but no direction

speed

speed vs velocity

velocity is speed with direction

speed vs velocity

Multiple Choice

While going to school, a student walks an average of 5 km/hr west for 12 blocks.

• Speed
• Acceleration
• Velocity

Multiple Choice

A quantity that needs both magnitude and direction to be fully described.

• Vector

• Scalar

Multiple Choice

A quantity described by magnitude and does not need direction

• Vector

• Scalar

Multiple Choice

While going to school, a student walks an average of 5 km/hr for 12 blocks.

• Speed
• Acceleration
• Velocity

Lesson 2.5

• Calculating speed

• Calculating velocity

• relationships

Allison drives 15 km in 2 hours. What is her speed?

calculating speed

Allison drive 15 km east in 2 hours. What is her velocity?

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Calculating Velocity

Direct - X goes up, Y goes up

Inverse - X goes up, Y goes down

Relationships

Writing the unit of measurement

• take the unit of the distance

• take the unit of the time

• place them as distance/time

Multiple Choice

What is the speed of an object that travels 20 meters in 4 seconds?

• 80 m/s
• 0.2 m/s
• 5 m/s
• 24 m/s

Multiple Choice

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Multiple Choice

Calculate the velocity of a car that travels 556 kilometers northeast in 3.4 hours.

• 163.52 km/hr northeast

• 163.52 km/hr

• 0.006 km/hr

• 0.006 km/hr northeast

Multiple Choice

What is the velocity of a car that traveled a total of 75 kilometers north in 1.5 hours?

• 50 km/hr north

• 50 km/hr south

• 112.5 km/hr

• 112.5 km/hr north

Multiple Choice

What is the velocity of a plane that traveled 3,000 miles from New York to California in 5.0 hours?

• 600 mi/hr west

• 600 mi/hr east

• 300 mi/hr west

• 300 mi/hr east

Multiple Choice

If a jogger runs for 2,541 meters in a time of 43.6 minutes, what would be the unit of measurement of their speed?

• km/hr

• km/min

• m/hr

• m/min

Match

Match the relationships

• Speed and Distance

• Speed and Time

• Distance and Time

Direct

Inverse

Direct

• Direct

• Inverse

• Direct

Lesson 2.6

• acceleration

• explaining acceleration

• calculating acceleration

• Change in direction

• Change in speed

• Change in velocity

• How much time it takes for object to change its motion

• Positive - speeding up

• Negative - slowing down

Acceleration

Acceleration

-20 m/s²

• Each second, the object's speed is decreasing by 20 m/s

20 m/s²

• Each second, the object's speed is increasing by 20 m/s

Milton goes from 15m/s to 3 m/s in 4 s. What is his acceleration?

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Calculating Acceleration

I

​i

Writing the unit of measurement

• identify the unit of velocity

• identify the unit of time

• place them as: distance/time²

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 dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

Multiple Choice

How fast is the car traveling at 30 seconds?

• 5m/s
• 10m/s
• 20m/s
• 30m/s

Multiple Choice

Which graph shows the object standing still?

• A
• B
• C
• D

Multiple Choice

Which graph demonstrates the greatest positive speed?

• A
• B
• C
• D

Multiple Choice

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D