
EoC Exam, static electricity and elect. Quantities
Quiz
•
Physics
•
9th Grade
•
Practice Problem
•
Easy
Mohannad Bosta
Used 3+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A wire has a certain electrical resistance.
The diameter and length of the wire may be changed.
Which pair of changes must cause the resistance of the wire to decrease?
decreasing the diameter and decreasing the length
increasing the diameter and decreasing the length
increasing the diameter and increasing the length
decreasing the diameter and increasing the length
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Four students separately measure the electromotive force (e.m.f.) of the battery, the current in the resistors, and the potential difference (p.d.) across resistor R.
Which student shows values with their correct units?
Sardor
e.m.f.= 3 V
current = 0.3 A
p.d. = 3 V
Sam
e.m.f.= 3 A
current = 0.3 A
p.d. = 3 V
Tom
e.m.f.= 3 V
current = 0.3 A
p.d. = 3 ohm
Jim
e.m.f.= 3 V
current = 0.3 C
p.d. = 3 V
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A polythene rod repels an inflated balloon hanging from a nylon thread.
Why do the rod and balloon repel?
The rod and the balloon have opposite charges.
The rod and the balloon have like charges.
The rod is charged but the balloon is not.
The balloon is charged but the rod is not.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Four students are each given an identical resistor and asked to find its resistance. They each measure the potential difference across the resistor and the current in it.
The results are shown below. One student makes a mistake.
Who is this student?
Tom
p.d. = 1.9 V
current = 0.20 A
Jim
p.d. = 3.1 V
current = 0.29 A
Lim
p.d. = 4.5 V
current = 0.46 A
Kim
p.d. = 4.9 V
current = 0.94 A
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a complete circuit, the conventional current flows through the wire from
positive to negative battery terminals
negative to positive battery terminals
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If 40 C of charge pass a point in a circuit in 2.0 s, what current is flowing?
20 A
16 A
26 A
6 A
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