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Worksheetsphysics quiz
Total questions: 10
Worksheet time: 7mins
What is the primary carrier of electric current in a copper wire?
A. Protons
B. Neutrons
C. Electrons
D. Ions
What is the unit used to measure electric current?
A. Volt (V)
B. Ohm (Ω)
C. Ampere (A)
D. Joule (J)
What is the main difference between direct current (DC) and alternating current (AC)?
A. DC flows in a loop, and AC does not.
B. DC flows in one direction, while AC changes direction periodically.
C. AC is used in batteries, while DC powers homes.
D. AC involves electron flow, while DC does not.
What is the effect of increasing resistance in a circuit on the current flow?
A. Current increases
B. Current decreases
D. Current fluctuates
C. Current remains the same
In a circuit, what causes electrons to move and create a current?
A. The resistance of the circuit
B. The voltage provided by the power source
C. The capacitance of the circuit
D. The length of the wire
Which of the following devices typically uses alternating current (AC)?
A. A smartphone
B. A laptop battery
C. A refrigerator
D. A flashlight
Which of the following is a common use of direct current (DC)?
D. Lighting street lamps
B. Charging batteries
C. Running electric motors
A. Powering household appliances
Which of the following best describes the term 'voltage'?
C. The opposition to current flow
B. The potential difference between two points in a circuit
D. The energy consumed by a device
A. The rate of flow of electric charge
What property of a material affects how easily electrons can flow through it?
A. Voltage
B. Resistance
C. Capacitance
D. Power
Which of the following describes the term 'circuit'?
A. A closed loop that allows current to flow
B. A device that stores electrical energy
C. A measure of electrical power
D. A type of electrical resistance
