PRE-TEST FOR 4TH QUARTER
Quiz by Charmaine Perio
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- Q1
Which of the following is a good conductor of electricity?
A. copper
C. cotton
B. cloth
D. plastic
60s - Q2
You want to have equal distribution of electricity in your house. Which of the following are you going to do?
B. Ask a qualified electrician to install extension wires.
A. Ask a qualified electrician to install octopus wiring.
D. Ask a qualified electrician to install parallel connection.
C. Ask a qualified electrician to install series connection.
60s - Q3
Which refers to a change in position with respect to a reference point?
A. distance
D. energy
B. Motion
C. meter
60s - Q4
What do you think is the reason why a speed of 10 km/h is required at school zones?
A. to save on fuel
D. to prevent vehicles from bumping into one another
C. to keep the children safe from vehicular accidents
B. to prevent damage to vehicles
60s - Q5
What happens to the current in a series if one bulb is removed?
A. decreases
D. stops
B. increases
C. remains the same
60s - Q6
How can we increase the strength of the magnetic field of an electromagnet?
D. put more paper clips to pick up
A. add more copper wire to coil
B. clip on the alligator clips
C. expose to more light
60s - Q7
Which material should we use to construct an electromagnet?
C. Use abaca rope as wire.
A. Use a black crayon as core.
D. Use yarn as wire.
B. Use a silver spoon as core.
60s - Q8
How can you increase the strength of an electromagnet?
B. Use a metal part of the screwdriver
C. Use a tempered glass as the core.
D. Use an expensive gel pen as core.
A. Use a long pencil as core.
60s - Q9
The relationship between the strength of an electromagnet and the number of coils is directly proportional. This means that _____.
C. As the number of coil decreases, the strength of the electromagnet increases.
B. As the number of coil increases, the strength of the electromagnet is still the same.
D. As the number of coil increases, the strength of the electromagnet decreases.
A. As the number of coil increases, the strength of the electromagnet increases.
60s - Q10
Which statement is true about electromagnet?
D. They are permanent magnets.
A. It is a magnet made when electrical charges move through a coil of wire wrapped around an iron core or center.
C. A magnet that can prevent an electric shock.
B. A device that produces electric current from energy stored from chemicals
60s - Q11
What happens to the current in a series if one bulb is removed?
B. increases
D. stops
C. remains the same
A. decreases
60s - Q12
Where does an electric current flow?
C. closed circuit D. busted bulb
A. open circuit
D. busted bulb
B. broken circuit
60s - Q13
What is the effect of changing the wire in a circuit from a straight short wire to a
longer coiled thick wire.?
C. The bulbs become dimmer.
B. The bulbs become brighter.
D. The bulbs stay at the same level of brightness.
A. Nothing has changed.
60s - Q14
Imagine a circuit with a 1.5 volts battery, a bulb and a similar circuit with 3 volts
battery and 2 bulbs. Which has the brighter glow?
A. The bulbs in both circuits will not lit.
C. The circuit with 3 volts battery and 2 bulbs.
D. The bulbs in both circuits are of similar brightness levels
B. The circuit with 1.5 volts battery and one bulb.
60s - Q15
Imagine a simple circuit with one 1.5 volts battery and a bulb. When the 1.5 volts
battery is replaced with a 3 volts battery, what will happen?
B. The bulb gets dimmer.
D. The bulb stays at the same level of brightness.
A. The bulb gets brighter.
C. Nothing has changed.
60s