1

The figure below shows various lunar positions. (Not drawn to scale)

In which position(s) is the moon in the Earth's penumbra?

A) / Positions 1, 2 and 4 only / C) / Positions 2 and 3 only
B) / Position 2 only / D) / Position 3 only

2

A light ray travels from medium 2 (whose index of refraction is n2) to medium 1 (whose index of refraction is n1).

The index of refraction n2 of medium 2 is greater than the index of refraction n1 of medium 1.

Which diagram(s) below correctly represent(s) what could occur to the light ray?

A) / Diagram 2 only / C) / Diagrams 1 and 2 only
B) / Diagram 3 only / D) / Diagrams 1, 2 and 4 only

3

A nightclub manager successively shines three spotlights on his dance floor, one at a time. When the manager tests his lights, he notices the following:

 Spotlight 1, on its own, makes his shirt appear black and his pants appear blue.

 Spotlight 2, on its own, makes his shirt appear yellow and his pants appear blue.

 Spotlight 3, on its own, makes his shirt appear yellow and his pants appear black.

What is the colour of light coming from each spotlight?

Spotlight 1
/ Spotlight 2 / Spotlight 3
A) / yellow / white / blue
B) / white / blue / yellow
C) / blue / yellow / white
D) / blue / white / yellow

4

Carl notices that the back window of Jasmine's car is dusty on the outside. He writes the word

/ on the back window. When Jasmine sits behind the wheel of her car, she sees

the message in her rear view mirror.

What does the message look like to her?

A) /
B) /
C) /
D) /

5

A pinhole camera is used to show the image of a turtle on its screen as shown below.

Which of the following is the image of the turtle that will appear on the screen of the pinhole camera?

A) / / C) /
B) / / D) /

6

An object is placed 7.5 cm in front of a concave mirror.

What is the radius of curvature of the mirror if the image size is the same as the object?

A) / 3.75 cm / C) / 8.5 cm
B) / 7.5 cm / D) / 15 cm

7

An object placed 20 cm from a lens produces a virtual image that is 3 times larger than the object.

What is the focal length of this lens?

A) / 15 cm / C) / 40 cm
B) / 30 cm / D) / 60 cm

8

An object is placed between the principal focus, F, and the centre of curvature, C, of a concave mirror.

Which of the following correctly identifies the location and characteristics of the image?

A) / Image located at F, smaller and real
B) / Image located between F and C, smaller and real
C) / Image located behind the mirror, larger and virtual
D) / Image located beyond C, larger and real

9

In the laboratory storage room, you discover a box of lenses with the following focal lengths: 0.105m, -0.075 m and 0.05 m. To conduct an experiment, you place the lenses in contact.

What is the power of this lens system?

A) / 0.08 diopters / C) / 16 diopters
B) / 0.23 diopters / D) / 43 diopters

10

The following 4 springs are available for placement in the set-up shown below. They have the same initial length.

Springs
1 / 2 / 3 / 4
Spring constant
(N/m) / 0.5 / 1.5 / 2.5 / 4.5

The mass is hooked onto the spring, which is then hooked onto the wall.

For which spring(s) will the mass rest on the ground?

A) / 1 only / C) / 3 and 4 only
B) / 1 and 2 only / D) / 4 only

11

A customer in a grocery store picks up a can from a display and places it in his cart. After following the path indicated in the diagram below, the can is placed on another shelf elsewhere in the store.

(Not drawn to scale).

Overhead View of Floor Plan of a Grocery Store

What is the magnitude of the displacement of the can from its original display location?

A) / 4.6 m / C) / 6.0 m
B) / 5.3 m / D) / 8.1 m

12

In an experiment, a student applies different constant forces to pull a brick across a rough floor. The various rates of acceleration were calculated and plotted on the graph, as shown. /

According to the data, what is the mass of the brick?

A) / 0.80 kg / C) / 1.00 kg
B) / 0.90 kg / D) / 1.25 kg

13

The following diagrams depict two different forces, F and 2F, acting on two different masses. (Force 2F is twice force F.) The mass of object 3M is 3 times the mass of object M. The acceleration of the first is 3.0 m/s2. Neglect the effect of friction.

What is the acceleration of the object labelled ''3M'' in the second set-up?

A) / 0.75 m/s2 / C) / 2.0 m/s2
B) / 1.5 m/s2 / D) / 6.0 m/s2

14

Two dynamometers (or spring scales) are used to suspend a mass as shown on the diagram below. The suspended mass has a weight of 2.5 N. The dynamometer on the left has a reading of 1.25 N.

What is the reading of the dynamometer on the right, if it is set at 60°, as shown?

A) / 3.75 N / C) / 2.17 N
B) / 2.80 N / D) / 1.25 N

15

A cart rolls on a frictionless surface according to the diagram.

Which of the following is the correct choice for the corresponding distance-time and speed-time graphs?

A) /
B) /
C) /
D) /

16

A small, very dense sphere is in freefall toward the ground.

Which of the following variables is directly proportional to the elapsed time?

A) / The distance it covers from the start
B) / The position from the start
C) / The acceleration at every instant
D) / The speed at every instant

17

A student tows two children sitting on a sleigh by pulling on a rope with a force of 100 N.

The rope makes an angle of 30° with the horizontal.

If the sleigh moves 2 m across a flat, icy surface, how much work has the student done?

A) / 87 J / C) / 173 J
B) / 100 J / D) / 200 J

18

A baseball with a mass of 275 g is pitched and reaches the catcher with a speed of 25 m/s. In stopping the ball, the catcher's hand moves back 0.30 m.

What is the average stopping force exerted on the baseball?

A) / 1.14  101 N / C) / 5.73  102 N
B) / 2.86  102 N / D) / 2.86  105 N

19

In an experiment, two students use an apparatus to launch a metal ball vertically upward into the air.
The apparatus exerts an average net force of 73.5 N over a vertical distance of 0.40 m. The mass of the ball is 105 g. /

To what height, above the starting position, will the ball rise, if there is no air resistance?

A) / 5.60  101 m / C) / 2.80  102 m
B) / 2.86  101 m / D) / 2.74  103 m

20

A wheel and axle is used to raise a bucket of cement.
The diameter of the axle is 6.0 cm. The diameter of the wheel is 30.0 cm. /

What effort force is required to raise a bucket of cement with a total mass of 95 kg?

A) / 4.66  103 N / C) / 1.86  102 N
B) / 4.75  102 N / D) / 1.9  101 N

21

A cat is situated 0.5 m away from a 1.0 m long plane mirror. A mouse is slowly sneaking behind the cat in a path parallel to the mirror and 1.0 m away from it, as shown below. Diagram NOT to scale.

How far, from its initial position, can the mouse travel without being seen in the mirror by the cat?

22

A pelican is flying above sea level in search of its next snack. It sees a fish at an angle of 40° to the horizontal, as shown below. The fish is located 1.0 m away, horizontally, from the buoy. The height of the pelican above the water is equal to the depth of the fish.

What is the height of the pelican above sea level?

23

A 2.0 cm tall object is placed 5.0 cm in front of a convex mirror with a focal length of – 4.0 cm.

Show the image of this object using a ray diagram to scale.

State the type and attitude of this image.

24

A student wishes to draw a picture of an insect for a project. The insect is 2 cm long and its image must have a magnification of 5. He uses a converging lens (f = 15 cm) as a magnifying glass.

How far away from the insect is its image?

25

A ski lift moves up and down along a hill according to the following V-t graph. Unfortunately, it stalls on the way down at t = 200 s.
At this point, the rescue team must decide whether the skiers are closer to the top or the bottom of the hill.
Using the V-t graph, determine whether the ski lift is closer to the top or to the bottom of the hill and by how much. /

Ski Lift Velocity Graph

26

From rest, a ball rolls down a 1.0 m long hill accelerating at a rate of 4.0 m/s2. It then continues smoothly at a constant speed over a flat surface for 5.0 seconds. Ignore the effects of friction.

How far does the ball travel along the flat surface?

27

A 3.0 N cart, initially at rest, is allowed to roll down an incline set at an angle of 30° with a table top. The incline is 1.2 m long and the cart begins at an elevation of 60 cm above the table.

Ignoring frictional forces, at what speed is the cart going when it reaches the bottom?

28

A cart, attached to a mass, is pulled along the table as shown in the diagram below.

The system is considered frictionless.

Determine the acceleration of the system, towards the right.

29

A 750 kg car is accelerated from an initial speed of 10 m/s to a final speed of 25 m/s.

How much work is done on the car?

30

Ellen walks up the 14 steps to the second floor of her house in 12 seconds.

Each step has a vertical rise of 0.19 m. She has a mass of 55 kg.

Later she runs up these steps in 4 seconds.

How many more watts of power does Ellen generate in running as she does in walking?