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Science 8 3 Summative Test: Schools Division of Surigao Del Sur Cortes District Burgos National High School RD

The document appears to be a science test for 8th grade students covering basic concepts of electricity and circuits. It contains 15 multiple choice questions testing knowledge of: 1) Ohm's law and how to calculate current, voltage, and resistance in a simple circuit. 2) Key physicists who contributed to the study and understanding of electricity such as Ampere, Volta, and Ohm. 3) Basic circuit components like resistors, batteries, light bulbs, and ammeters. 4) The definitions of voltage, current, and resistance.

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joan t.turaja
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62 views2 pages

Science 8 3 Summative Test: Schools Division of Surigao Del Sur Cortes District Burgos National High School RD

The document appears to be a science test for 8th grade students covering basic concepts of electricity and circuits. It contains 15 multiple choice questions testing knowledge of: 1) Ohm's law and how to calculate current, voltage, and resistance in a simple circuit. 2) Key physicists who contributed to the study and understanding of electricity such as Ampere, Volta, and Ohm. 3) Basic circuit components like resistors, batteries, light bulbs, and ammeters. 4) The definitions of voltage, current, and resistance.

Uploaded by

joan t.turaja
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Republic of the Philippines

Department of Education
Caraga Region
SCHOOLS DIVISION OF SURIGAO DEL SUR
CORTES DISTRICT
BURGOS NATIONAL HIGH SCHOOL

SCIENCE 8
3rd Summative Test

Multiple Choice. Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper.

1. A simple circuit has a 20 volts source and a resistance of 4 ohms. What is its electric current?

a. 5 amps b. 24 amps

c. 80 amps d. 16 amps

2. A French physicist who discovered electric current and made a great contribution to the
development of electricity and magnetism.

a. Georg Simon Ohm b. Alessandro Volta

c. Andre-marie Ampere d. Alexander Grahambell

3. A factor that affects the flow of electrical charges.

a. Resistance b. Current

c. Voltage d. Watts

4. A law that state that the flowing current is directly proportional to the applied energy or voltage
and is inversely proportional to the resistance of the circuit.

a. Charles Law b. Ohms Law

c. Newtons Law d. Guy lussac Law

5. The rate of electrical charges flows in a point of circuit.

a. Voltage b. Electric current

c. Resistance d. None of the above

6. If the resistance decrease and the voltage stay the same the current will __________?

a. Stay the same b. Increase

c. Decrease d. None of the above

7. A light bulb is connected to a 120V battery and draws 10A of current. What is the net resistance of
the bulb?

a. 1200Ω b. 12Ω

c. 110Ω d. 130Ω

8. A resistance of 5 Ω was connected across a 60 V source. What is the resulting current?

a. 12 A b. 65 A

c. 55 A d. 360 A

9. A ammeter is a device used to measure____________

a. Resistance b. Voltage

c. Current d. Ampere
10. He formulated Ohms Law.

a. Andre-marie Ampere b. Georg simon Ohm

c. Alexander Grahambell d. Alessandro Volta

11. What is the unit of resistance?

a. Kilowatt/hour b. Ohms

c. Volts d. Ampere

12. According to Ohm’s law, Resistance equals the voltage divided by the_____.

a. Resistance b. Voltage

c. Current d. None of the above

13. A light bulb is connected to a 15V battery and draws 3A of current. What is the net resistance of
the bulb?

a. 4Ω b. 3Ω c. 5Ω d. 2Ω

14. What is the resistance of the circuit when 10 A are applied across 120 V source?
a. 12 Ω b. 11Ω
c. 20Ω d. 130Ω

15. What is the symbol for resistance?


a. R b. I c. V d. Q

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