WorksheetsElectromagnetism Quiz
Total questions: 10
Worksheet time: 5mins
Which statement best explains how iron can become a magnet?
Electrons are easily removed.
Electrons spin in a unique direction.
Atoms are strongly bonded together
Atoms have smaller nuclei.
Two parallel copper wires are each carrying the same electrical current in the same direction. Which statement explains how they respond to each other?
They repel each other, because they have similar magnetic fields.
They repel each other, because they have opposite magnetic fields.
They strengthen each other, because they have similar magnetic fields.
They strengthen each other, because they have opposite magnetic fields.
Which of the following electromagnets would have the greatest magnetic field?
A balloon has a negative charge. A glass rod has a positive charge. What will happen when the glass rod is brought near the balloon?
The balloon will be attracted to the rod.
The balloon will be repelled by the rod.
The balloon will remain in place.
The balloon will spin in circles.
A coil with a current is shown above. In the center of the coil, a magnetic field points-
to the right
to the left
upward
downward
The diagram above shows the current flow through a wire. Which of the following represents the magnetic field resulting from the current?
The figure shown here shows a neutral glass rod and a positively charged metal sphere. Which of the following BEST describes the movement of charges as this glass rod touches the sphere?
Negative charges move from the sphere to the glass rod.
Negative charges move from the glass rod to the sphere.
Positive charges move from the sphere to the glass rod.
Positive charges move from the glass rod to the sphere.
Precise measuring instruments require shock absorbers to eliminate small vibrations that can affect the results of an experiment. One type of shock absorber that can be used is an electromagnet that repels a magnetic platform placed above it. Which of the following setups would provide the greatest lift to the platform?
Which of the following groups of materials would most likely be used to build an electromagnet?
bare wire, plastic rod, battery
bare wire, iron rod, light bulb
insulated wire, iron rod, battery
insulated wire, plastic rod, light bulb
An electric circuit is shown here. Why does the compass needle move when the compass is placed near the wire?
because electric current makes the light bulb give off thermal energy
because electric current produces magnetic forces
because the plastic coating on the wires
because of the light bulb
