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WorksheetsT5 L 3 Electromagnetic Force
Total questions: 15
Worksheet time: 8mins
What are the properties of electromagnets?
They are permanent magnets.
They can be turned on and off.
They do not require electricity.
They are made of wood.
What conclusion did Ørsted reach about electric current?
It produces heat
It produces a magnetic field
It produces light
It produces sound
What is the effect of an electric current on a nearby compass needle?
It makes the needle glow
It changes the needle's direction
It breaks the needle
It heats the needle
What scientific principle is demonstrated by the crane's magnet lifting heavy metal beams?
Electromagnetism
Gravity
Friction
Inertia
What did Ørsted conclude about the relationship between electricity and magnetism?
They are unrelated
They are the same
They are related
They cancel each other out
What rule is used to determine the direction of a magnetic field around a straight wire?
Left-Hand Rule
Right-Hand Rule
Thumb Rule
Index Finger Rule
What is the main topic Lesson 3?
Electric circuits
Magnetic fields and current
Electromagnetic force
Electric resistance
What is the relationship between the current and the magnetic field strength?
No relationship
Inversely proportional
Directly proportional
Exponentially related
What effect does winding the coils closer together have on a solenoid?
It weakens the magnetic field
It has no effect
It strengthens the magnetic field
It decreases the current
What advantage does an electromagnet have over a solenoid in an MRI machine?
A) It is cheaper to produce.
B) It provides a stronger magnetic field.
C) It requires no electricity.
D) It is smaller in size.
What letter represents where an iron nail would feel the greatest attractive attractive pull?
A
B
C
D
Electric currents produce _____________
electron clouds
magnetic fields
sound waves
What are the ways to find a magnetic field?
Using compass
By the help of electromagnets
By iron filings
