WorksheetsScience: Electricity and Magnetism
Total questions: 42
Worksheet time: 1hrs 10mins
Q.1. Which of the following statements is false?
Electricity is a form of energy
Electricity is the movement of electrons between atoms.
Like charges attract each other; unlike charges repel each other
Atoms are made up of subatomic particles; namely, electrons, protons, and neutrons.
The object shown has what type of charge?
positive
negative
neutral
(a) electricity is the result of an imbalance between negative and positive charges in an object. (capitalize the word)
(a) are substances that allow electricity to pass easily through them.
Which of the following are conductors?
Metal Paper Clips
Gold
Copper
Plastic
Which of the following is NOT an example of an insulator?
Porcelain
Rubber
Sea water
Paper
When there are more negative charges than positive charges, the charge is ________.
negative
positive
neutral
When there are more positive charges than negative charges, the charge is ________
neutral
positive
negative
When there is the same number of positive and negative charges, the charge is ____.
positive
negative
neutral
Sphere K is positively charged, and the charges on spheres L and M are unknown. The following diagrams show the positions of these spheres when they are suspended two by two side by side. What are the charges on spheres L and M?
Sphere L is negatively charged and sphere M is negatively charged.
Sphere L is positively charged and sphere M is positively charged.
Sphere L is negatively charged and sphere M is positively charged.
Sphere L is positively charged and sphere M is negatively charged.
When the neutral rubber rod and neutral wool are rubbed together, electrons on the wool are transferred to the rubber rod, and the rubber rod is charged ______________.
neutrally
positively
negatively
What will occur when the two spheres shown here come in contact with each other?
Electrons will move from the red sphere to the blue sphere.
Electrons will move from the blue sphere to the red sphere.
Protons will move from the red sphere to the blue sphere.
Protons will move from the blue sphere to the red sphere.
What device is used to measure electrical charge?
Thermometer
Electroscope
Telescope
Stethoscope
Which of the following is a positively charged particle?
Nucleus
Electron
Proton
Neutron
Which of the following is a negatively charged particle?
Nucleus
Neutron
Electron
Proton
Which of the following atoms is considered negative?
An atom with seven protons, seven neutrons, and seven electrons
An atom with seven protons, seven neutrons, and eight electrons
An atom with eight protons, seven neutrons, and seven electrons
An atom with seven protons, eight neutrons, and seven electrons
As shown, a neutral electroscope is touched with a positively charged rod, and then the rod is removed. According to this case, the charge of the electroscope is ________.
positive
neutral
negative
What is the unit of electric charge?
Volt (V)
Coulomb (C)
Ampere (A)
Ohm (Ω)
Lightning is caused by ______________ electricity.
Conductor
Current
Insulator
Static
After being rubbed through the hair, a plastic comb can attract small pieces of paper.
friction
current
conduction
conduction
Which switch or switches must be closed for the lamps to light up?
Switch 1
Switch 2
Switch 3
None
Which of the following statements is false?
In a series circuit, electricity has only one path to follow.
In a parallel circuit, electricity has more than one path to follow.
Electric current can flow through an open circuit.
Ammeter measures the electric current and it is connected in series in the circuit.
If bulb X is removed in the circuit, what will happen to bulb Y?
It will get brighter
It will get dimmer
It will turn off
It will stay the same
If bulb A is removed in the circuit, what will happen to bulb B?
It will get brighter
It will get dimmer
It will turn off
It will stay the same
In which of the following circuits are the bulbs NOT connected in series?
__________ are tools used to measure the current in a circuit and they are connected in series in the circuit.
Ammeters
Voltmeters
Batteries
Switches
A ___________ measures the electric potential difference and it is connected in parallel in the circuit.
Ammeter
Voltmeter
Battery
Switch
______________ is the opposition to the movement of electric charges through a material.
Current
Potential difference
Ammeters
Resistance
What is the SI unit of current?
Ampere (A)
Coulomb (C)
Ohm (Ω)
Volt (V)
What is the SI unit of resistance?
Coulomb (C)
Ampere (A)
Ohm (Ω)
Volt (V)
Where V stands for voltage, I stands for current, and R stands for resistance, which is the correct formula for Ohm's Law?
I = R/V
V = R/I
V = I/R
V = IR
If a voltage of 8V is applied to a 4Ω resistor, what is the current?
0.5 A
2 A
16 A
32 A
If 10 amperes of electric current flows through a conductor having potential difference between two points is equal to 40 volts, what is the resistance?
400 Ω
10 Ω
4 Ω
40 Ω
If a current of 3 amperes flows through a resistance of 15 ohms, what is the potential difference?
30 V
45 V
5 V
15 V
Identify the type of magnet shown in the picture.
Disc magnet
Horseshoe magnet
Bar magnet
Ring magnet
Batteries convert ___________ to electrical energy.
nuclear
light
sound
chemical
Which material will not be attracted to a magnet?
Iron
Copper
Nickel
Cobalt
Which of these correctly indicates what happens when two magnets are placed side by side?
a)
b)
c)
d)
Which of the following statements is false?
All magnets are surrounded by a magnetic field.
The magnetic field is the invisible region around a magnet where the magnetic force works.
The Earth has a magnetic field.
Some magnets have only one pole.
At which of the labeled points in the diagram is the magnetic field the strongest?
A
B
C
D
What creates the Earth’s magnetic field?
The spinning of the Earth on its axis
The Earth's core
Tides
Gravity
A __________ is a tool that has a magnet on a needle, and its needle points to the north.
Electromagnet
Compass
Thermometer
Barometer
