WorksheetsElectric Charge and Circuits
Total questions: 15
Worksheet time: 8mins
What are the two types of electric charge?
Positive and magnetic
Positive and negative
Static and current
High and low
What happens when two objects with like charges are brought close together?
They attract
They repel
They neutralize
They explode
What occurs when a charged object is brought near a neutral object?
The neutral object gains heat
The neutral object is attracted to the charged one
Nothing happens
They both repel
Which material is a good conductor of electricity?
Plastic
Rubber
Copper
Wood
Which of the following is an insulator?
Glass
Aluminum
Steel
Salt water
What does the law of conservation of charge state?
Charge disappears during transfer
Total charge remains constant in a system
Charge changes form during a reaction
Charge cannot be measured
What is the main purpose of a lightning rod?
To attract lightning
To safely direct electrical charge to the ground
To store static electricity
To power a circuit
How does a paint sprayer use static electricity?
It charges paint particles so they stick evenly
It uses magnets to attract paint
It heats paint to increase flow
It sprays using compressed air only
What is resistance?
The amount of current in a circuit
The opposition to the flow of electric current
The number of electrons in a wire
The power used in a circuit
What happens when a second identical lightbulb is added in series?
The total resistance increases
The current increases
Each bulb gets brighter
Voltage across each bulb increases
What happens when a second identical lightbulb is added in parallel?
Resistance increases
Total current increases
Each bulb gets dimmer
Voltage across each bulb decreases
What does a voltmeter measure?
Electric current
Potential difference (voltage)
Resistance
Power
How should an ammeter be connected in a circuit?
In parallel with the load
In series with the load
Across the power supply
Outside the circuit
If a current of 2 A flows through a resistor with a voltage of 10 V, what is the resistance?
0.2 Ω
5 Ω
12 Ω
20 Ω
What type of energy transformation occurs in a lightbulb?
Electrical energy to light and heat
Light energy to electrical energy
Sound energy to light energy
Mechanical energy to chemical energy
