Diagnostic assessment Student Version

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Diagnostic Assessment

Student Version

The CrickSat Mission

Diagnostic Assessment

Directions: Choose the best answer for each of the following questions. Use the attached reference sheet for assistance.

1. What value of resistor will be needed to produce a current of .1 A when a voltage of 12V is applied across a resistor?

A. 120 A B. 120 Ω C. .01 V D. 1.20 Ω

2. What would be the resistor color code for the resistor needed in the above circuit if it had to have a +/- 5% tolerance?

A. Black Red Black Gold

B. Red Black Yellow Silver

C. Brown Red Brown Gold

D. Brown Green Black Silver

3. A circuit needs a resistor that is 220 Ω. However when you used a multimeter to measure across the resistor the measurement reading is 115 Ω. Which of the following statements about the resistor is correct?

A.

The resistor is good because it is within a +/- 5% tolerance rating and can be used in the circuit.

B.

The resistor cannot be used in the circuit because it has the incorrect meter reading.

C.

The resistor is within the +/- 1 % tolerance rating and can be used in the circuit.

D.

The resistor color bands have been labeled incorrectly and the resistor should be thrown away

Diagnostic Assessment

Student Version

4. To maintain a charge flow in an electric circuit, at least two requirements must be met:

#1: An external energy supply (e.g., battery, wall outlet, generator, etc.) to pump the charge through the internal circuit and establish a potential difference across the circuit.

#2: The external circuit must make up a "closed conducting loop" between the + and - terminal.

Utilize your understanding of these requirements to decide which statement below is true of the following situation. Decide whether charge would flow through the following circuits or if there is no charge flow and then why not.

A. The electric charge will flow through the circuit because the battery is connect with conducting wires from the + terminal to the – terminal.

Figure 1

B. The electric charge will not flow because it is an open circuit.

C. The electric charge will flow because the external energy supply has produced a potential difference across the circuit.

D. The electric charge will not flow because the light bulb is incorrectly linked in the series circuit.

Figure 2

5. In Figure 2 the wavelength is represented by

A.

A B. B C. C D. D E. E

Diagnostic Assessment

Student Version

6. What is it called when a certain number of waves pass a given point per a certain number of seconds?

A.

wavelength

B.

frequency

C.

amplitude

D.

origin

7. As frequency increases, wavelength _______________________.

A.

Increases

B.

Remains constant

C.

Decreases

D.

Becomes faster

8. In telecommunications and signal processing the information signal can rarely be transmitted as is, it must go through a process of encoding of information in a carrier wave by varying the instantaneous frequency of the wave. This process is called

A.

frequency transmission

B.

frequency receiving

C.

frequency oscillation

D.

frequency modulation

9. What layer or layers of the atmosphere are within 5 km above the earth’s surface?

A.

Thermosphere

B.

Thermosphere and Troposphere

C.

Troposphere

D.

Troposphere and stratosphere

10. Predict the expected outcome of the temperature as altitude increases to a maximum of 5km from the earth’s surface on a typical July day.

A.

The temperature would increase steadily up to 5km.

B.

The temperature would decrease steadily up to 5km.

C.

The temperature would increase the first 3 km and then level off with no change.

D.

The temperature would decrease the first 3 km and then increase up to 5 km.

11. Predict the expected outcome of the atmospheric pressure as altitude increases to a maximum of 5 km from the earth’s surface on a typical July day.

A.

The atmospheric pressure would increase steadily up to 5km.

B.

The atmospheric pressure would decrease steadily up to 5km.

C.

The atmospheric pressure would increase the first 3 km and then level off with no change.

D.

The atmospheric pressure would decrease the first 3 km and then increase up to 5 km.

Diagnostic Assessment

Student Version

40

Temperature v Frequency

30

20

10

Ряд1

0

0

-10

500 1000 1500 2000 2500

-20

Frequency (KHz)

Figure 3

12. Analyze the graph in Figure 3. Which of the following statements best explains an analysis of the data?

A.

The temperature and frequency data has a negative correlation.

B.

Temperature and frequency do not have a mathematical relationship.

C.

The temperature and frequency data has a positive correlation.

D.

The temperature and frequency data can be used to estimate altitude.

13. The most likely reason for a helium filed balloon to rise in the atmosphere is

A.

the gas inside of the balloon is less dense than the gas it's displacing around it(air).

B.

the gas on the outside of the balloon has less atmospheric pressure.

C.

the gas inside the balloon is more dense than the gas it’s displacing around it

(air).

D.

the helium gas has more particles of helium per square inch than does the surrounding air.

Figure 4

Diagnostic Assessment

Student Version

14. Predict the expected outcome of a high altitude helium balloon as it increases in altitude from the surface of the earth up to 5 km.

A.

The helium filled high altitude balloon would not be affected by the increase in altitude.

B.

The helium filled high altitude balloon would shrink in size due to the decrease of temperature.

C.

The helium filled high altitude balloon would increase in size and burst due to the increase of temperature.

D.

The helium filled high altitude balloon would increase in size and burst due to the decrease in atmospheric pressure on the out side of the balloon.

15. When soldering sometimes a “cold” solder joint is created. What is a “cold” solder joint?

A.

Solder that was not heated adequately to make a strong bond with the board.

B.

A piece of solder lain across two parts without heating.

C.

Solder that has cooled to room temperature

D.

A refrigerated solder connection.

16. What are common names for some primary discrete components used on a circuit board?

A.

Fuse clamp, chassis, probe

B.

Header, receptacle, via

C.

Resistors, capacitors, diodes

D.

Silicon, ceramic, conformal coating

17. What is the electrical component in figure 4?

A.

High frequency multiplexer

B.

50 watt resistor

C.

555 timer

D.

light emitting diode (LED)

Diagnostic Assessment

Student Version

Figure 5

18. What is the electrical component in figure 5?

A.

High frequency multiplexer

B.

Resistor

C.

555 timer

D.

light emitting diode (LED)

Figure 6

19. The schematic symbol in Figure 6 represents a _____________.

A.

Battery

B.

Resistor

C.

LED

D.

Motor

Figure 7

20. The two schematic symbols in Figure 7 represent a _________________________.

A.

Battery

B.

Resistor

C.

LED

D.

Motor

Diagnostic Assessment

Student Version

Reference Page

The Electromagnetic Spectrum

Mr Calaski.. “Science, news, and class information” Web. 08 July 2013

Resistor Color Code Chart

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