PHYSICS exam -June 2007s3.amazonaws.com/prealliance_oneclass_sample/9eA3vbAg85.pdf ·...

PHYSICS554-534

Summative Examination

June 2007

Question Booklet

Secondary 5

Mathematics and Science & Technology Committee

3 hours

Physics 554-534 Question Booklet Page 1

INSTRUCTIONS

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

2. Answer all 25 questions in the Answer Booklet. Each question is worth four marks.

3. You may use drawing instruments, graph paper, and a scientific calculator with orwithout a graphic display.

4. You may refer to the lists of formulas and quantities included in the appendix to thisQuestion Booklet. The use of any other reference material is strictly forbidden.

5. Hand in both the Question Booklet and the Answer Booklet at the end of the examsession.

Note: Figures are NOT necessarily drawn to scale.

Time allotted

3 hours


1

2

Part A Questions 1 to 15

Blacken the letter that corresponds to your answer in the Answer Booklet.

Below is the virtual image created in a plane mirror.

image

mirror

Which of the following shows the orientation of the original object?

A) C)

B) D)

On July 8, 2006, the world’s largest photograph was taken using a “pinhole” camera set up insidean abandoned air force hangar in El Toro, California.

The photographic film measured 9.63 m high by 33.8 m wide. The distance from the pinhole tothe film was 24.4 m. An object is located 325 m from the front of the camera.

What is the maximum height of the object that could be captured by this camera?

A) 0.723 m C) 128 m

B) 2.54 m D) 450 m


3 A ray of light is directed at a spherical convex mirror.

C F

Which of the following shows the correct reflected ray?

A)

C F C)

C F

B)

C F D)

C F


5

4 A parallel beam of light is projected through a box that has a lens positioned to alter the beam.

Box Beam of light

New beam

Based on the diagram above, which of the following lenses has been placed inside the box?

A) C)

B) D)

A student is using a spherical concave mirror to project an image of a candle on a small screen.He finds that the image is too large for the screen.

Which of the following adjustments would create a new image that would fit on the screen?

A) Move the candle and the screen toward the mirror.

B) Move the candle and the screen away from the mirror.

C) Move the candle away from the mirror and move the screen towards the mirror.

D) Move the candle towards the mirror and move the screen away from the mirror.


6

7

Standing on a stage, a singer is illuminated by three lights, each emitting a different colour.When the first light is used, he appears to be wearing black shoes, red pants, and a red shirt.

When the second light is used, he appears to be wearing blue shoes, black pants, and a blue shirt.

Under the third light, he appears to be wearing black shoes, black pants, and a green shirt.

What are the colours of the singer’s shoes, pants, and shirt?

Shoes Pants Shirt

A) Black Black Red

B) Black Red White

C) Blue Black Red

D) Blue Red White

Which of the following graphs represent non-uniform motion?

t

d v v

3 4 1 2

a

t t t

A) 1 and 2 C) 2 and 3

B) 1 and 4 D) 3 and 4


8

9

On her trip to school, Danielle makes several stops as illustrated in the diagram below.

Home School

Store

Coffee shop

Friend’s house

Which vector represents her resultant displacement?

A) C)

B) D)

Which of the following simple machines can be considered as modifications of the lever?

1. Pulley2. Screw3. Inclined plane4. Wheel and axle5. Wedge

A) 1 and 2 C) 3 and 4

B) 1 and 4 D) 3 and 5


10

11

12

Which of the following characteristics can be used to describe the energy of a movingobject?

1. Measured in Newtons2. Measured in joules3. Varies directly with the speed of the object4. Varies as the square of the speed of the object5. Varies directly with the mass of the object6. Varies inversely with the mass of the object

A) 1, 3 and 5 C) 2, 3 and 6

B) 1, 4 and 6 D) 2, 4 and 5

Serge and Archie were discussing how to increase their speed during a ski race. They identifiedsome factors that will influence speed by reducing the force of friction.

1. The weight of the skier2. The length of the skis3. The wax applied to the bottom of the skis4. The sharpening of the edges.

Which of these factors have the greatest influence on friction?

A) 1 and 2 C) 2 and 4

B) 1 and 3 D) 3 and 4

While standing at the top of the Grand Canyon, Heather throws a rock with an upward velocityof 35.0 m/s. The rock hits the bottom of the canyon 22.5 s later.

How deep is the canyon at this point?

A) 677 m C) 2480 m

B) 1690 m D) 3270 m


13

14

To reduce injuries at the playground, a spring has been installed under the seesaw halfway alongits length.

It is adjusted so that when a child of 50.0 kg sits by himself on the seesaw, he will be graduallylowered to the ground without the usual need for a second person. The spring is compressed50.0 cm in the process.

What is the spring’s constant?A) 200 N/m C) 980 N/m

B) 490 N/m D) 1960 N/m

A cart, which is initially at rest, moves down an inclined plane. The effects of friction arenegligible. The mass of the cart is 500 g, the incline is 40.0 cm high and 60.0 cm long.

40.0

cm

What is the speed of the cart when it has gone half way down the incline?A) 1.98 m/s C) 3.92 m/s

B) 2.80 m/s D) 19.8 m/s


15 A hot air balloon whose weight is 1000 N is ready to lift off. It is tethered by 2 ropes at 30° tothe vertical. The hot air’s lifting force is 4000 N.

30° 30°

weight = 1000 N

FLIFTING = 4000 N

What is the tension in each rope?

A) 1732 N C) 3000 N

B) 2864 N D) 3464 N


17

16

In Part B of the examination you must show all your work. Answer all these questions inthe answer booklet. Show all the work needed to solve the problem: data given,explanations, formulas and calculations. Then write your answer in the space provided.You will be given no marks if you provide the right answer without showing your work.However, you will be given part marks for work that is partially correct. Where necessary,corrections will take into account the units of measurement.

Part B Questions 16 to 25

Answer all these questions in the answer booklet provided.

Peter wants to produce a ghostly image on his garage door for Halloween. He puts a slide of aninverted ghost, 3.20 cm in height, into the projector. The slide is 12.0 cm from the lens. Theheight of the image must be 1.60 m.

What focal length should the converging lens have?

Jamal and Danika were given a substance having a critical angle of 32.1°. They arranged a raybox such that a ray of light left the substance travelling into air with an angle of refraction of 17°.

What is the angle of incidence?


18

19

A laser is beamed across the bottom of a water-filled fish tank to point A (Diagram 1).

laser

Diagram 1

nwater = 1.33

Diagram 2

1.75 cm A

B

20.0 cm A

45°

B

20.0

1.75

A

Top view

45°

A plastic right-angled isosceles triangle is placed on the bottom of the tank so that the short sidesare parallel to the tank’s walls. The laser’s beam is refracted to point B, a 1.75 cm deviation frompoint A (Diagram 2).

The beam leaves the triangle from a point 20.0 cm away from point A.

What is the index of refraction of the plastic triangle?

Patsy places an object 20.0 cm from a lens. A focused real image appears 20.0 cm from the lens.She wants to add a second lens in order to move the image 60.0 cm farther from the lenscombination.

What must be the optical power of the second lens?


20

21

A magnifying glass is used to observe a stamp. When the lens is placed 4 cm from the stamp, theimage has a magnification of +2.

How far from the stamp must the lens be placed to produce a magnification of +4?

The following situation is being studied.

Adrian and Irwin conducted the investigation shown below. A 10-kg mass was suspended by astring and attached to a 5.0-kg block. The force of friction on the system was 40 N.

Mass = 5 kg

Friction = 40 N

Mass = 10 kg

What was the acceleration of the system shown?


22

24

23

To move a 2000-N air conditioning unit to the roof of a building 10 m high, a winch is used. It isset up to move the air conditioner along a frictionless ramp with a mechanical advantage of 4. Toreduce the stress on the cable, the winch is set to move the air conditioner at 2 m/s.

What is the power of the winch?

A force of 16 N is applied to a 400-g mass, starting at rest, over a distance of 5 m.

How long does it take the mass to move 5 m?

A police officer was sitting in his stationary patrol car waiting to catch a speeding vehicle. A carpassed the officer at a speed of 72 km/h. The instant it passed, the officer accelerated uniformlyto 90 km/hour in 10 seconds and continued at that speed until he caught the speeding vehicle.

How far had both vehicles travelled when the officer caught up with the speeding car?


25 Yue is investigating the physics involved in her brother’s track-toy, a portion of which isillustrated below:

A

B

0.15 kg Slider

1.2 m

Ff = 0.11 N Fapplied = 6.6 N

Δd = ?

The top of the "hump" is 1.2 m above the level of the slider at the beginning of the track. Theaverage force of friction between the 0.15 kg slider and the track is 0.11 N. The distance frompoint A to point B along the track is 2.3 m.

Yue’s brother propels the slider by applying a constant force of 6.6 N hoping to get it over the"hump".

How far must he push the slider to ensure that it makes it over the "hump"

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