1. AST416 – Applied Science and Technology
Mid-Year
Mr. Boushel
Mr. Davis
Ms. Drummond
D’Arcy McGee High School
Time: 2 hours
Instructions:
Answer ALL questions directly on the ANSWER SHEET.
Show all your work for the long answer questions. Showing work is not required for the multiple choice questions.
There are 35 questions.
You may use a calculator (graphing calculators permitted), ruler, pen or pencil & eraser.
A formula sheet is attached to the Answer Sheet.

2. 1
Two charged spheres (A and B) are suspended from a wire as shown in the diagram below. Sphere A is negatively charged, but we do not know the charge on sphere B. A B
A student carries out the following steps to see how the spheres will behave.
Step 1 – She brings a charged rod close to sphere A. A
Step 2 – She brings the same rod close to sphere B. B
Which statement correctly describes the charge on the rod and the behaviour of spheres A and B
If they are brought close to each other?
The rod is negatively charged , and spheres A and B will attract each other.
The rod is negatively charged , and spheres A and B will repel each other.
The rod is positively charged , and spheres A and B will attract each other.
The rod is positively charged , and spheres A and B will repel each other. 2
A 20 Ω resistor is connected to a power source with a voltage (potential difference) of 50 V.
What is the current intensity?
A) 0.4 A b) 2.5 A c) 70 A d) A

3. I 3 4 Which statement explains the direction of the compass needle?
The wire is not covered by an insulating substance.
The compasses are attracted by the metal used to make the wire.
The current flowing through the wire generates a magnetic field.
The Earth’s magnetic field is the main reason for the direction of the compass needles. 4
An electrical circuit consists of two light bulbs positioned so that if one of them stops working, the other one goes out. In this circuit, we want to measure the voltage across the terminals of one light bulb and the current intensity of the other light bulb.
Which of the following diagrams shows the measuring instruments correctly connected to provide the measurements? A) B) C) D)

4. 5
A nut and bolt is used to attach two pieces of metal. The bolt MUST pass through both pieces in
order to attach the nut.
What is minimum length for the bolt?
12 mm
13 mm
14 mm
15 mm
5.0 mm ± 0.5
8.0 mm ± 0.5 6
During a violent storm, the windows of the “Three Little Pigs” boutique were broken by
flying debris, nearly injuring its customers. As a result, the owners want to replace the glass in their windows with a transparent material that is more resistant.
What mechanical properties must this transparent material have?
Elasticity – Hardness
Elasticity – Malleability
Resilience – Hardness
Resilience - Malleability
An assembly line has two motors. To activate either motor, you simply change the position of the switch. The electrical circuit for this system is represented in the diagram below. 7
What type of switch is represented in this circuit?
A single-pole, single-throw switch
A single-pole, double-throw switch
A double-pole, single-throw switch
A double-pole, double-throw switch

5. 8

6. 9

7. 10 11 The diagram below shows the handlebars and frame of a bicycle.
What freedom of movement do the handlebars have when they are used?
Freedom of rotational movement along the X axis.
Freedom of rotational movement along the Y axis.
Freedom of translational movement along the X axis.
Freedom of translational movement along the Y axis. 11
A compass is placed in the magnetic field of an electromagnet.
Which of the following diagrams shows the compass needle pointing in the correct direction?

8. 12 13 Consider the following isometric:
Which diagram corresponds to the multiview orthagonal projection of this part? A) B) C) D) 13
Which circuit diagram below shows the correct connections for the measuring instruments
and the correct instrument readings given the resistance value indicated?

9. 14
Static electricity can make hair stand up straight in the air as shown in the picture below.
Which statement explains the behaviour of hair in this situation?
The strands of hair have opposite charges and therefore repel one another.
The strands of hair and the air have opposite charges, so the hair is attracted by the air.
The strands of hair have like charges and therefore repel one another.
The strands of hair and the air have like charges, so the hair is attracted by the air. 15
The electrical circuit in a device seems to be defective. A student was asked to check the value of resistor 1 (R1) in this circuit. The student took different measurements.
The following diagram shows the measurements taken by the student.
Given the measurements taken by the student and knowing that the current flowing through the circuit is 5 A, what is the value of resistor 1 (R1) in this electrical circuit?
The value of the resistor is 0.5 Ω.
The value of the resistor is 2.0 Ω.
The value of the resistor is 3.0 Ω.
The value of the resistor is 50 Ω.

10. 16
Which one of the following electromagnets will produce the strongest magnetic field? 17
The following diagram shows a straight current-bearing wire that runs through a surface on which a compass has been placed.
Which of the following compass needles is pointing in the direction of the magnetic field produced by the current lowing through the wire?

11. 18
Technicians are working on a device that includes an electrical circuit that must be built with the best electrical conductor.
The following table gives the characteristics of four wires. One of these wires must be chosen to build this circuit.
Which of these wires should the technician use?
A) Wire 1 B) Wire 2 C) Wire 3 D) Wire 4 19
What mechanical constraint is illustrated below?
A) Compression B) Deflection C) Torsion D) Tension

12. 20 21 22 Give the notation for the link of the stovetop knob. Rx b) Rz
c) TX d) Tz 21
Outlet plate covers are screwed onto the wall to cover electrical outlets.
The characteristics for the link between the outlet and the wall are:
Direct, rigid, non-removable, partial
Direct, flexible, removable, complete
Indirect, flexible, non-removable, partial
Indirect, rigid, removable, complete 22
Felt pads are usually added under the legs of dining room chairs. If there is a plastic piece at the base, it must be removed first. Which factor of adhesion is being adjusted?
The amount of perpendicular force.
B) The state of the surfaces in contact.
C) The presence of a lubricant.
D) The nature of the materials in contact.

13. 23 24 25 26 Which of the following is not a use of a diode?
Rectification B) Control
C) Amplification of current D) Produces light 24
Which of the following machining techniques involves the act of giving a material its
desired shape?
A) Annealing B) Bending
C) Tapping D) Shearing 25
What factor, affecting the strength of adhesion, is affected when wood is sanded before painting?
The state of the surface in contact.
The nature of materials in contact.
The presence of a lubricant.
Perpendicular force. 26
The rating plate below indicates the characteristics of Jasmine’s hair dyer.
MODEL - J45 – TX2
110 V W
Jasmine took 15 minutes to dry her hair.
How much electrical energy did Jasmine use to dry her hair?
300 J B) J
C) J D) J

14. 27
This type of material, made from petroleum, requires resilience. It cannot be heated and reshaped.
A) Ceramic
B) Thermosetting plastic
C) Alloys
D) Thermoplastic 28
This form of switch is used on most power bars:
A) Toggle B) Rocker
C) Push button D) Magnetic contact 29
A basketball player like to hang from the rim. After bending, it returns to its original position. A D’Arcy student, against school rules, decided to try the same manoeuver in the gym. Instead of returning to its position, it stayed bent. Identify the constraint and deformation for the D’Arcy student:
Deflection and Plastic
Tension and Plastic
Deflection and Fracture
Tension and Fracture 30
Pigments are added to a plastic countertop . These were added to protect against:
Water
Oxidation
Heat
Ultraviolet Rays

15. Answer Sheet Name: _________________________ __________ 11. __________
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A contact lens solution holder has two compartments that unscrew and can be removed. Each compartment contains a cleaning solution.
Give the four characteristics for the link between the hard plastic contact case and its hard plastic lid.
Give the number of degrees of freedom.
Give the appropriate notation (if applicable).
Name the type of guide. (Use the way it functions)
Name the guiding component.
Name the guided component.

16. Activity Energy Consumed (W●h) 3600 2400 2590 24032
This morning, Julie did the following:
She turned on a 40-W lamp and left it on for 1 hour and 18 minutes.
For 54 minutes, she listens to a radio with a power of 5 W.
She took a shower.
She did her laundry in warm water.
The following table indicates the amount of electrical energy consumed during certain activities.
Activity
Energy Consumed
(W●h)
Bath
3600
Shower
2400
Warm water laundry
2590
Cold water laundry
240
Using the information, determine the total amount of electrical energy Julie used this morning.

17. Electrical component used to transform energy 33
Fill in the following table.
Electrical component used to transform energy
Type of energy that electricity is converted into
Light Bulb
Thermal
Piezo Electric Crystal
Magnetic 34
Fill in the missing information in the following table
Power Supply
Advantage
Disadvantage
Battery
Has to be replaced
Electrical Outlet
Has long-lasting power
Does not work in the dark.

18. objects action 35 A and B attract A and D no attraction C and B
Use the table below to classify each of the objects:
objects
action
A and B
attract
A and D
no attraction
C and B
B and D
Label each of the objects as : Magnetic, ferromagnetic or non-magnetic.
A: ____________________________
B: ____________________________
C: ____________________________
D: ____________________________ 36
Classify each of the following as Friction, Conduction or Induction.
A) A charged comb attracts hair without touching it. ___________________________
B) Children sliding down a plastic slide. ______________________________________
C) A driver gets a shock exiting her car. ______________________________________
D) A dry cloth is used to polish the wine glass. ________________________________
A Vitamix blender uses 47 kJ oif energy over a 4 minute period. If the potential difference is 120 V, find the current intensity. 37

19. 38
Complete the three views of the Multiview orthogonal projection of the object illustrated below.
Use a scale of 1:10

20. Formulas
I = q I = current intensity
∆t ∆t = time interval
q = charge
V = E V = potential difference
q E = energy
R = V R = resistance
I V = potential difference
I = current intensity
Pe = W Pe = electrical power ∆t W = work
∆t = time interval
Pe = VI Pe = electrical power
V = potential difference
E = Pe∆t E = electrical energy
Pe = electrical power
1 C = 6.25 * 1018 electrons