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WorksheetsElectricity and Magnetism Review
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
A magnet broke in 3 small pieces. Which statement is correct about the fragments?
a)
X does not have a south-seeking pole.
b)
Y has both a north-seeking pole and a south seeking pole
c)
Z does not have a north-seeking pole
d)
all statements are correct
2.
A nail is made into a temporary magnet as shown. When placed near a compass....
a)
The sharp end attracts the NORTH end of the compass
b)
The sharp end attracts the SOUTH end of the compass
c)
Neither end has an effect on the compass
d)
The nail head will will attract the NORTH end of the compass
3.
Which diagrams shows the proper way to make a magnet by using the "stroke" method?
a)
A
b)
B
c)
C
d)
D
4.
The image shows where each magnet attracted the pin. What conclusion can be drawn?
a)
The pin is not a magnetic object.
b)
Magnetic force can act from a distance.
c)
Magnet M has a stronger magnetic force than Magnet N.
d)
The SOUTH poles of the magnet are stronger than the NORTH.
5.
Which one of the following mixture of objects can we use a magnet to separate?
a)
Nickel pins and iron nails
b)
Iron pins and copper nails
c)
Iron pins and steel needles
d)
Copper nails and wooden toothpicks
6.
Which one of the above materials has been classified wrongly?
a)
Gold
b)
Silver
c)
Nickel
d)
Copper
7.
The diagram below shows three bar magnets and a U-shaped magnet. Which is/are true?
a)
Poles R and Y are opposite poles.
b)
Pole U will repel poles W and R.
c)
Pole Z will repel pole U and be attracted to pole R.
d)
Pole X will repel pole T and be attracted to pole V.
8.
The diagram below shows magnet A, magnet B and magnet C. What are the poles of X and Y?
a)
X=north, Y=north
b)
X=south, Y=north
c)
X=north, Y=south
d)
X=south, Y=south
9.
When magnet X is brought near to the basin, the styrofoam board will__________.
a)
remain still
b)
move away from magnet X
c)
move towards magnet X
d)
sink to the base of the basin
10.
A U-shaped magnet is put into a box of iron pins then removed. Which points have the most pins
a)
A and B
b)
A and D
c)
B and C
d)
C and D
11.
Which of the following diagram shows the property that unlike poles attract?
a)
A
b)
C
c)
B
d)
D
12.
Which of the following can be done to increase the strength of the electromagnet?
a)
Use a copper nail.
b)
Use more batteries.
c)
Use a thicker wire.
d)
Have less coils around the nail.
13.
Which light bulb will NOT light up?
a)
A
b)
B
c)
C
d)
D
14.
Which two points must be connected for the light bulb to light up?
a)
A and D
b)
A and C
c)
E and H
d)
F and D
15.
Which circuit is in parallel?
a)
A
b)
B
16.
A circuit has 3 bulbs & 2 batteries, however not all three bulbs light up equally bright, why?
a)
They are wired in parallel
b)
There are not enough batteries to power 3 bulbs
c)
They are wired in series
d)
Your bulbs should never outnumber your batteries
17.
What was the aim of the experiment?
a)
Do the number of batteries affect the brightness of the bulb
b)
Does the arrangement of the switches affect bulb brightness
c)
Do the length of the metal rods affect bulb brightness
d)
Does arrangement of the metal rods affect bulb brightness
18.
An electric train requires 25 Volts. The track has 45 ohms of resistance, what is the current?
a)
1125 ohms
b)
0.56 amps
c)
0.56 ohms
d)
1.8 amps
19.
How much voltage is in a circuit with 2.5 amps of current and a total resistance of 65 ohms?
a)
26 volts
b)
26 amps
c)
0.0385 ohms
d)
162.5 volts
20.
How much resistance is in a circuit that had 120 V of electricity and had a current of .85 A?
a)
102 ohms
b)
0.00708 volts
c)
141.2 ohms
d)
102 ohms
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