WorksheetsT6 L1 Circuits
Total questions: 20
Worksheet time: 11mins
What are the components of a circuit?
Resistor, Battery, Wire
Light bulb, Switch, Water
Magnet, Nail, String
Paper, Pencil, Eraser
What is the role of a resistor in a circuit?
To limit the flow of current
To increase the speed of current
To store energy
To convert energy to light
What happens to electrical energy in a table lamp?
It is stored as potential energy
It is transformed into light and heat
It is used up completely
It is converted into sound energy
What is the purpose of a circuit switch?
To increase the voltage
To open and close the circuit
To decrease the current
To store electrical energy
What does a circuit sometimes contain to control the flow of charges?
Batteries
Motors
Switches
Light bulbs
What causes current to flow in a circuit?
Resistance
Voltage
Power
Capacitance
What is the direction of electric current in relation to electron flow?
Same direction
Opposite direction
Perpendicular direction
Random direction
What is the main cause of electric current flow in a circuit?
Resistance
Electric potential energy difference
Capacitance
Inductance
What is the purpose of using symbols in circuit diagrams?
To make them colorful
To show the parts of a circuit
To confuse the reader
To decorate the page
Who discovered the relationship between voltage, current, and resistance?
Isaac Newton
Albert Einstein
Georg Ohm
Nikola Tesla
What is the effect of increased resistance in a series circuit?
Increased current
Decreased current
Increased voltage
Decreased voltage
What happens to the brightness of bulbs in a series circuit as more are added?
Brightness increases
Brightness decreases
Brightness remains the same
Bulbs explode
Which parts are necessary for a circuit to work?
battery or other power source
an outlet to plug in
light bulb or other resistor
wires to connect
An electrical circuit contains, at minimum, a(n) _____.
voltage source, load, and conductors
voltage source, load, and overcurrent device
ammeter, load, and voltage source
resistor, conductors, and load
As voltage increases, current (a) .
As Voltage Increases, Current _____
Increases
Decreases
Remains the same
A resistor is a device that controls current in electric circuits.
True
False
Adding more resistors in parallel will...
increase the total resistance in the circuit
have no effect on the total resistance
decrease the total resistance in the circuit
