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WorksheetsUnderstanding Electricity and Atoms Quiz
Total questions: 20
Worksheet time: 10mins
Which of the following correctly represents Ohm's Law?
V=IR
I=RV
R=IV
All of the above
If a circuit has a voltage of 12V and a resistance of 4Ω, what is the current flowing through the circuit?
2A
3A
4A
6A
Identify the part of an atom that has a positive charge.
Electron
Neutron
Proton
Nucleus
Which of the following statements is true about elements and compounds?
Elements are made up of two or more types of atoms.
Compounds are made up of only one type of atom.
Elements cannot be broken down into simpler substances.
Compounds cannot be broken down into simpler substances.
Calculate the atomic number of an atom with 6 protons.
6
12
18
24
If a resistor has a resistance of 10Ω and the current flowing through it is 2A, what is the voltage across the resistor?
5V
10V
20V
40V
Which of the following is the correct unit for measuring electrical resistance?
Volt
Ampere
Ohm
Watt
What is the atomic weight of an atom with 6 protons and 6 neutrons?
6
12
18
24
Which part of an atom is located in the nucleus and has no charge?
Electron
Neutron
Proton
Quark
If a circuit has a resistance of 5Ω and a current of 2A, what is the power dissipated in the circuit?
5W
10W
20W
40W
Which of the following is a compound?
Oxygen (O₂)
Hydrogen (H₂)
Water (H₂O)
Nitrogen (N₂)
What is the current flowing through a 15Ω resistor if the voltage across it is 45V?
1A
2A
3A
4A
Which of the following particles is found outside the nucleus of an atom?
Proton
Neutron
Electron
Quark
What is the voltage across a 10Ω resistor if the current flowing through it is 0.5A?
2V
5V
10V
20V
Which of the following is true about the relationship between voltage, current, and resistance?
Voltage is directly proportional to current.
Current is inversely proportional to resistance.
Voltage is directly proportional to resistance.
All of the above
Calculate the atomic weight of an atom with 8 protons and 8 neutrons.
8
16
24
32
Which of the following is an element?
Carbon dioxide (CO₂)
Sodium chloride (NaCl)
Iron (Fe)
Water (H₂O)
If a circuit has a voltage of 24V and a current of 3A, what is the resistance in the circuit?
4Ω
6Ω
8Ω
12Ω
Which of the following particles determines the atomic number of an element?
Electron
Neutron
Proton
Quark
What is the current flowing through a 20Ω resistor if the voltage across it is 100V?
2A
3A
4A
5A
