describing motion

Types of motion - فرز المجموعات

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Multiple Choice

What does a motion diagram represent?

• The path of an object

• The speed of an object

• The direction of an object

• The time taken by an object

Multiple Choice

What does the length of the arrows in the coordinate system represent?

• Time

• Distance

• Speed

• Direction

Multiple Choice

What is the difference between vectors and scalars?

• Vectors have size and direction, scalars do not

• Scalars have size and direction, vectors do not

• Both vectors and scalars have size and direction

• Vectors are always larger than scalars

Scalar quantities or Vector quantities - Group sort

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Multiple Choice

What is the mathematical definition of the time interval?

• Δt = tf - ti

• Δt = ti - tf

• Δt = tf + ti

• Δt = ti + tf

Multiple Choice

What does the symbol x represent in the context of position vectors?

• Position at the tree

• Position at the lamppost

• Change in position

• Displacement

Fill in the Blanks

Multiple Choice

A position-time graph of an athlete winning the 100-m run is shown. Estimate the time taken by the athlete to reach 65 m.

• 6.0 s

• 6.5 s

• 5.5 s

• 7.0 s

Open Ended

In the graph, when and where does runner B pass runner A?

Multiple Choice

What is the position of both runners A and B at the intersection point on the graph?

• 150 m

• 190 m

• 200 m

• 100 m

Multiple Choice

What is the formula for average velocity as represented in the image?

• v = Δx/Δt

• v = (xf - xi)/(tf - ti)

• Both A and B

• None of the above

Multiple Choice

What does the slope of the position-time graph indicate about the object's motion?

• It indicates the object's speed

• It indicates the object's average velocity

• It indicates the object's direction

• It indicates the object's acceleration

Multiple Choice

What does the sign of the slope indicate about the direction of an object's movement?

• It indicates the speed of the object

• It indicates the direction of the object's movement

• It indicates the object's displacement

• It indicates the object's acceleration

Multiple Choice

What should be true about the motion of an object in order for you to treat that object as if it were a particle?

• The object should be no smaller than your fist.

• The object should be small compared to its motion.

• The object should be no larger than you can lift.

• The object should not be moving faster than the speed of sound.

Multiple Choice

This graph shows a map of a town with different points of interest. The line represents John’s trip through town.

Considering each block measures 1 km, what is the total displacement for John’s trip?

• 4 km north and 8 km west

• 8 km north and 8 km west

• 10 km west

• 12 km west

Multiple Choice

Which runner had a head start?

• A
• B
• C

Fill in the Blanks

Multiple Choice

Which is an example of VELOCITY?

• A dog running at 3 m/s
• A deer sprinting at 4 m/s
• A migrating bird headed south for the winter at 3 m/s
• A person not moving at all

Multiple Choice

What is the average speed of a sprinter who completes a 55-m dash in 6.2 s?

• 6.2 m/s

• 7.1 m/s

• 8.9 m/s

• 11 m/s

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident