Test Review

Week 3 CCA2013-2014

What is the average velocity during the 6 s to 8 s interval?a. 12 m/s b. 13 m/s c. 0 m/s d. 14 m/s

Question: The table below represents the position of a dog as a function of time

Time (s) Position (m)0 22 54 7

6 88 8

10 9

Question: Observe the diagram below. Mr. and Mrs. Jones travels from point A to point B at a constant 35 km/hour. Which of the following changes?

A. Speed and velocity B. VelocityC. Speed D. None of the above

Justify your answer: _________________________________________________

A

B

Question: A ladybug walks 10 cm in 2 s. The ladybug stops for 10 s to eat on a leaf and then walks 15 cm farther in 20 s to get to her favorite flower. What the average speed of the ladybugs entire walk?

a. 1.14 cm/sb. 0.78 cm/sc. 1.28 cm/sd. 0.88 cm/s

Velo

city

(m/m

in)

Time (min)

What is the velocity of the truck at t = 20min?

A. 8 m/min B. 35 m/min C. 40 m/min D. 0 m/min

Question

0

Label the following as S- Scalar quantity or V- Vector quantity

1. Speed- __________2. Time- __________3. 47 Celsius- __________4. 165 grams- __________5. Velocity- __________6. 50 mph east- __________7. 25 km/hr- __________8. 16 mL- __________9. distance- __________10. displacement- ________

Question: What does the slope of the line for a displacement vs. time graph represent? ___________

Dis

plac

emen

t (m

)Displacement vs. Time

Directions: Calculate the average velocity of the object from 0 to 10 minutes.

Dis

plac

emen

t (m

)

Time (min)

0 10 20 30

Questions

Observe the diagram of the car below and answer the questions that follow.

Question: Calculate the average speed of the car from 0 seconds to 5 seconds in the space below.

Question: Calculate the instantaneous speed of the car at 3 seconds in the space below.

Question: How does the average speed compare to the instantaneous speed of the car?___________ Explain why: __________________________________________________

The graph shows Marie’s distance from home (A) to work (F) at various times during her drive.

Question: Which section of the graph represents Marie waiting at a traffic light? _________Question: Which section of the graph represents Marie going back home to pick up her lunch? _______

The graph below represents the motion of an object.

Time (s)

Dist

ance

(m)

Question: Which word best describes the velocity of the object over the 10 seconds.

A. constantB. increasingC. decreasingD. changing

Question: Luis is riding a horse at a velocity of 35 km/hr. He reaches the stable in 15 hours. How many kilometers did he travel?

Given Formula Substitution Answer &Unit

v =d =t =

Describe Motion of

object Graph 1 Graph 2Describe

Motion of object

Explain how the apple on the table is at rest and moving 107,000 km/h at the same time. _______________________

Question

Question: What did you use as your frame of reference to describe the apple at rest? ___________________________

Question: What did you use as your frame of reference to describe the apple moving at 107,000 km/h?_____________________

Question: Calculate the average speed of car A over the duration of its motion. ________

Question: Calculate the average speed of car B over the duration of its motion. ________

Observe the distance vs time graph below.