2011 physics exam question booklet

Physics Examination — 553-504

Secondary Cycle Two Year Three (Secondary 5)

June 2011

Physics

Question Booklet

http://www.wqsb.qc.ca/%00%E5%A1%B9%EF%92%81%E1%B4%BB%E4%A1%BF%E2%B2%AF%E5%B6%82%E8%97%84%E6%8C%A7%00%00%EA%AE%A5

Instructions

1. Write the required information on the title page of the Answer Booklet.

2. Answer all questions in the Answer Booklet.

3. This examination is made up of 13 questions and is worth 55 marks.

4. You may use drawing instruments, and a scientific calculator with or without graphic display.

5. You may refer to the Table of Trigonometric Ratios and lists of Formulas and Quantities included in the Appendix of the Question Booklet. The use of any other reference material is strictly forbidden.

Note: Figures are not necessarily drawn to scale.

TIME: 3 hours

Physics – 553-504 (Sec 5)Secondary Cycle Two Year Three

Question Booklet –June 2011 Page 1

Evaluation Situation Context

Community Service Project

A group of high school students have decided to travel to Togo, West Africa as part of a community service project. They plan to help build a well next to an elementary school in a rural area near the town of Dapaong, in the Northern part of Togo. During their service project they encounter several physics problems that need to be resolved.

All people and situations mentioned in this examination are fictional.

Gook luck!

Question 1

The students depart for Togo from the Pierre Elliot Trudeau Airport in Dorval. They decide to use the moving sidewalk to get to their departure gate. It takes the sidewalk 24.0 s to move the students its entire 45.0 m length.

What is the average speed of the moving sidewalk in km/h?



Question 2

At the Lomé-Tokoin International Airport in Togo, luggage is weighed using a spring scale illustrated below. The maximum allowance for each passenger is 23 kg (50 lbs).

The diagram below shows how much the spring is deformed when Alex’s luggage is weighed. The force constant for the spring is 4.6 X 103 N/m.

a) What is the spring deformation?

Observe the conventions regarding significant figures and give the uncertainty of the measurement.

b) Does Alex’s luggage exceed the maximum allowance permitted per passenger?Justify your answer.



Question 3

Arriving at the Lomé-Tokoin International Airport, the students are surveyed by a security officer using three mirrors: one convex and two plane mirrors. The security officer and students are positioned as shown in the diagram below.

a) Which student(s) is/are NOT visible in the security officer’s field of vision?

b) Justify your answer by drawing ray diagrams in your Answer Booklet.

Field of Vision



Question 4

When the students arrive at the Lomé-Tokoin International Airport in Lomé (A), in the south, they must travel by bus to their final destination of Dapaong (B), which is located in the northern part of the country.

Use the map in your Answer Booklet and the given scale to answer the following questions.

A ruler is provided for you in Appendix 2.

a) What is the total distance travelled by the bus?

b) What is the displacement from Lomé to Dapaong?

Justify your answer by drawing the displacement on the map in your Answer Booklet.



Question 5

On the route from Lomé to Sokode, the mini bus transporting the students experiences a flat tire. The mini bus is elevated using a car jack (shown below). The graph illustrates the force applied, by the driver on the jack, as a function of distance for one complete push down on the jack’s lever. The driver executes 15 complete push downs on the lever of the jack in 30 seconds.

How much power was needed to elevate the mini bus?

Record your answer using two significant figures.



Question 6

Lea is preparing to throw a rope toy to a dog. As such, she is spinning the toy in a circular motion above her head. The motion of the toy is represented in the diagram below.

Top view of the trajectory of the rope toy

The toy is released from Lea’s hand at the exact position represented in the diagram.

a) What will be the trajectory of the toy?

Draw and describe the trajectory.

b) If Lea spins the toy twice as fast, what effect will that have on the centripetal force?



Question 7

After arriving in the city of Dapaong, Naudira and Marco start work on locating a suitable site to dig a well for water. They discover a transparent colourless solid in the water. When they shine a flashlight into the water at an angle of 43.0°, they find that the angle of refraction in the transparent solid is 25.0°.

What is the nature of the unknown transparent solid found in the water?

Naudira and Marco happen to be carrying the following chart with them on their travels.

INDICES OF REFRACTION

SubstanceIndex of

Refraction

Air 1.00

Water 1.33

Quartz (fused) 1.46

Flint Glass 1.65

Zircon 1.92

Diamond 2.42



Question 8

The students in Dapaong are studying a red effect in water caused by the presence of algae, possibly dinoflagellata. A magnifying glass with a focal distance of 4.0 cm is used to observe an upright image that is five times larger than the algae.

What distance separates the algae sample from the lens of the magnifying glass?

Question 9

Manpreet and Chloé explore the village of Dapaong. They find a store that sells stamps. The store has a sign suspended from a horizontal pole that is attached to the wall of the store, as shown below.

The sign has a mass of 2.9 kg.

EMBED Word.Picture.8

Marché Maria

Ro

pe

Ro

pe

Horizontal pole

a) Draw a Free Body Diagram of the sign, to represent this situation.

b) What is the tension in each rope?



Question 10

Sasha pushes a 15 kg cart full of donated books through a 5.0 m long starting area. The cart is then released and must reach the loading dock at the top of the hill 2.5 m in height, as shown in the diagram below. He must apply enough force on the cart so that the cart is able to travel along the 8.0 m path and reach the top of the hill. The force of friction between the 8.0 m path and the cart is 11.0 N.

What minimum force on the cart in the starting area is required to get it to the top of the hill?



Question 11

Tarik and Sondus notice the children playing with a toy car on a ramp. The children have a board elevated at one end, forming a 1.5 m long ramp at an angle of 35°. The toy car which has a mass of 275 g is place at the top of the ramp and released. Using his stopwatch, Tarik finds that it takes 1.25 s for the toy car to reach the bottom of the ramp.

What is the force of friction between the toy car and the ramp?



Question 12

A game played with the local villagers involves propelling a 50.0 g disk along a polished surface, and having it land on the ground in various scoring areas as illustrated below. The height of the platform is 1.5 m. Your disk leaves the platform with a velocity of 8.0 m/s.

How many points will you score?

Justify your answer.(Assume the polished surface is frictionless, and neglect air resistance.)



Question 13

While on the bus heading to the nearby village of Kara, the bus driver spots a boulder obstructing the road 90.0 m ahead. The following graph illustrates the bus’s maximum deceleration capability. The bus is travelling 25 m/s when the driver notices the boulder.

What is the maximum amount of time the driver can delay before applying the brakes to avoid hitting the fallen boulder?



Appendix 2

FORMULAS AND QUANTITIES

EQUATIONS

OPTICS MECHANICS

M =

MATHEMATICS

x =

PHYSICAL CONSTANTS

SYMBOL QUANTITY VALUE

c

g

Speed of light in a vacuum

Acceleration due to gravity (earth)

3.00 108 m/s

9.8 m/s2



2011 physics exam question booklet

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