WorksheetsElectricity and Magnetism
Total questions: 40
Worksheet time: 20mins
Which of the following correctly defines electric charge?
A physical property of matter.
A physical property of electrons.
A physical property of protons.
A physical property of atoms.
Upon what types of objects does the electric force act?
Objects with mass.
Objects with charge.
Magnetic materials.
Objects with inertia.
Two charged objects exert an attractive force on each other as shown. This means..
the two objects are both negatively charged.
the two objects are both positively charged.
the two objects are oppositely charged.
electricity is always an attractive force.
After going down a slide, a child becomes charged. Which of the following best explains why this child's hair stands up on end?
The hairs are oppositely charged and attract each other.
The hairs all have the same charge and repel each other.
The hairs point the direction a positive charge would move.
A negative electric field is created around the child's head.
The image shows the particles found inside an atom. Which of the following correctly identifies the charge of each object.
positive protons, negative neutrons, and neutral electrons.
positive protons, neutral neutrons, and negative electrons.
negative protons, neutral neutrons, and positive electrons.
neutral protons, positive neutrons, and negative electrons.
Which of the following statements about protons and electrons is FALSE?
The charge of a proton is about 1000 times more than an electron.
Electrons have negative charge and protons have positive charge.
They both possess an equal magnitude of charge equal to the elementary charge (e).
An electron is an elementary particle but a proton is not.
The animation shows the free movement of electrons through a material at room temperature. What can we conclude about this material?
This material is a conductor.
This material is an insulator.
This material is neither a conductor nor an insulator.
We cannot know what type of material this is.
The picture shows three charges (A, B, and C) equally spaced from each other. Which of the following correctly gives the direction of the electric force on A from B and C?
B pushes A to the left and C pulls A to the right.
B pushes A to the left and C pushes A to the left.
B pulls A to the right and C pulls A to the right.
B pulls A to the right and C pushes A to the left.
The picture shows three unequal charges spaced an equal distance apart. Which charge exerts a stronger force on charge B?
charge A
charge C
Charges A and C exert an equal force on B
cannot be determined
The graph shows the force exerted between two charges for two configurations of charge (A and B). Based on this graph, which of the following conclusions can be made?
A has a greater amount of charge than B.
B has a greater amount of charge than A.
The charges in A are closer together than in B.
The charges in A are farther apart than in B.
Which particles in an atom create electric fields?
only the electrons
only the protons
protons and electrons, but not the neutrons
all of the particles
The picture shows an electric field in a region of space. Which of the following correctly explains the meaning of the arrows?
The arrows indicate the direction of the electric field.
The arrows show the direction a positive charge will move.
The arrows indicate the direction of the force the field will exert on a positive test charge.
All of the above are true.
Three objects are placed in the electric field. Objects A and C are charged, but object B is neutral. Upon which of these objects does the electric field exert a force?
only A
only C
A and C, but not B
A, B, and C
Suppose each object is released from rest. In what direction will object C move?
to the right
to the left
remain stationary
cannot be determined
The picture shows the electric field surrounding a spherical charge. What is the charge of this object?
positively charged
negatively charged
north pole
south pole
The picture shows the electric field between two parallel plates in three configurations (A, B, and C). In which configuration is the electric field the strongest?
A
B
C
equal for all
A negatively charged ball is placed in an electric field, as shown in the picture. If the ball is released from rest at the position shown, into which container will it land?
A
B
C
D
E
An electric field is created in a conducting wire by placing both ends of the wire across the terminals of a battery. In which direction does the electric field point inside the conductor?
to the left
to the right
there is no field inside the conductor
cannot be determined
What is the name of this circuit element?
an ammeter
resistance
a resistor
ohms
Which of the following correctly shows the direction of the current flow in this simple circuit?
A 3-volt battery is connected to a 12-ohm resistor. What is the current drawn from the battery?
0.25 amperes
0.75 amperes
4 amperes
12 amperes
A resistor draws a 0.2 amperes of current when connected across a 6-volt battery. What is the resistance of this resistor?
1.2 ohms
3 ohms
12 ohms
30 ohms
Which of the following configurations shows how to connect a voltmeter and an ammeter to correctly measure the voltage across and the current through the resistor?
What voltage will this voltmeter measure?
2 V
4 V
6 V
10 V
What is the current in the 2-ohm resistor?
2 A
3 A
5 A
7 A
The picture shows two configurations of identical circuit components (batteries and resistors). Which of the following correctly identifies the circuit configurations?
ABC in series and DEF in series
ABC in series and DEF in parallel
ABC in parallel and DEF in series
ABC in parallel and DEF in parallel
The picture shows two configurations of identical circuit components (batteries and resistors). Select ALL the circuit components that have the same voltage across it as E.
A
B
C
D
F
The picture shows two configurations of identical circuit components (batteries and resistors). Select ALL the circuit components that have the same current through it as B.
A
C
D
E
F
Using Ohm's Law and the circuit rules, determine which voltmeter measures a higher voltage.
voltmeter 1
voltmeter 2
same for both
cannot be determined
Using Ohm's Law and the circuit rules, determine which ammeter measures a greater current.
ammeter 1
ammeter 2
same for both
cannot be determined
Two compasses are placed near the poles of two bar magnets. Which picture shows the compasses in the correct orientation?
The picture shows the magnetic field surrounding two bar magnets. In what direction would a compass needle point at point P?
up
down
left
right
Which of these is the best reason why the compass from the previous question points up at point P?
compasses point away from north poles
the north poles of the magnets repel the compass
the magnetic field lines point up at point P
compasses always point up
Identify the magnetic pole in question.
north
south
positive
negative
Four particles are placed in a magnetic field. Particles A and D are moving, the rest are stationary. Which particle will feel a force from this magnetic field?
A
B
C
D
None of them feel a force
The pictures show the magnetic field surrounding a current-carrying wire. In which picture is the current shown flowing in the WRONG direction?
The animation shows a coil gun, a type of projectile accelerator consisting of one or more coils used as electromagnets that accelerate a ferromagnetic projectile to high velocity. Upon which law of electromagnetism does this mechanism primarily rely upon?
Ørsted's Law
Faraday's Law
Lenz's Law
Maxwell's Law
In each of the following situations a conductor is placed in a magnetic field. Identify the situation in which a current will NOT be induced in the conductor.
A bar magnet is moved towards a coil of wire. In which of the following pictures is the direction of the induced current correctly indicated?
The picture shows an increasing current flowing through a conducting coil which induces a clockwise current in a loop of wire inside the coil. In which direction does the current flow through the conducting coil?
clockwise
counterclockwise
out of the page
into the page
