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WorksheetsMagnetism Quiz Review
Total questions: 25
Worksheet time: 27mins
You would use your left hand for a ______ charge.
Negative
Positive
Fb- used to show direction of magnetic force.
palm
fingers
thumb
B representing magnetic field is shown by
palm
finger
thumb
The _____ are used to determine the direction of magnetic force, current, or magnetic field.
reflection rules
magnetic indexes
right hand rules
magnetic coefficients
x
out
in
.
out
in
When a charged particle moves left to right relative to a magnetic field, it will experience a force. This force is always in a direction that is _____ to both the magnetic field and the particle's direction of travel.
parallel
30 degrees up
60 degrees down
perpendicular
If a positive charge is moving relative to a magnetic field, it will experience a force, unless it is traveling _____ to the field.
perpendicular
parallel
60 degrees down
30 degrees up
The direction of the force experienced by a charged particle moving relative to a magnetic field is affected by all of these, EXCEPT:
The sign of the charge
The friction experienced by the magnetic field
The direction of the magnetic field
The direction of the charged particle
You would use the Right Hand Rule for a ______ charge
Negative
Positive
A 0.55 C charge moves at 5 m/s in an electric field of 4 N/C. There is a magnetic field of 0.0013 T at a 30-degree angle. What is the magnitude of the Lorentz force felt by the charge?
1.27 N
2.20 N
0.68 N
5.12 N
All of the following are true about magnetic fields, EXCEPT
Permanent magnets rely on the magnetic properties of the atoms to create a magnetic field.
Using more turns of wire increases the strength of the magnetic field in an electromagnet.
Magnetics fields are generated by stationary charged particles.
An electromagnet is a magnet that relies on an electric current to produce the magnetic field.
A speaker uses a(n) _____ to function
electromagnet
positively charged metal
conductor
negatively charged metal
How strong is the magnetic field 48 cm away from a wire carrying 4 amps of current? (permeability of free space = 1.26 × 10-6 Tm/A)
0.47 × 10-6 T
2.54 × 10-6 T
1.67 × 10-6 T
3.98 × 10-6 T
V or I- is shown as the direction of force
palm
finger
thumb
What happens when we put ferromagnetic materials in a magnetic field?
An ion is created.
A magnet is created.
The strength of the ion decreases.
The strength of the magnet decreases.
When the secondary coil has twice the number of turns as the primary coil, the voltage will be _____ and the current will be _____ of that in the primary coil.
double, half
triple, double
half, triple
triple, half
Cordless charging of devices uses _____.
static
induction
gravity
friction
North and North magnets.....
Repeal
Attract
In the second right hand rule, if your thumb is pointing up, then what do the directions of your curved fingers indicate?
The direction of the current
The direction of the south pole
The direction of your wrist
The direction of the magnetic field
In the first right hand rule, what basic gesture are you making?
Like you're about to shake someone's hand
Like you're shaking a closed fist
Like you're giving an OK sign
Like you're giving a thumbs up
A magnetic field exerts a force on a charged particle:
that is perpendicular to both the magnetic field and the particle's direction of travel.
that is in the same direction as the magnetic field.
that is perpendicular to the magnetic field only.
that is parallel to both the magnetic field and the particle's direction of travel.
that is in the same direction as the particle's direction of travel.
The direction of the force on a charged particle is dependent on:
the speed of the particle relative to the field.
the magnitude of relative motion between the particle and the magnetic field.
the source of the magnetic field.
the sign of the charge on the particle.
the amount of charge on the particle.
What direction does a magnetic field go in?
South to North
North to South
The geographic south is magnetic......
North
South
