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Grade 4_Lesson 4.2-Circuits
Test Description: Test review questions on Lesson 4.2
Instructions: Answer all questions to get your test result.
1) What are the tiny building blocks of EVERYTHING?
A
Elements
B
Cotton
C
Atoms
D
Molecules
2) Which of the following is not one of the three types of particles?
A
wires
B
protons
C
electrons
D
neutrons
3) What type of charge do neutrons have?
A
positive
B
neutral
C
negagive
D
electro-negative
4) Static electricity builds up when ______ and ______ charges are no longer balanced.
A
positive and neutral
B
neutral and negative
C
electronegative and negative
D
positive and negative
5) What does 'balanced charges' mean?
A
There are less negative particles than positive charges.
B
There are the same number of positive and negative particles.
C
There are more positive particles than neutral particles.
D
There are more negative particles than positive particles.
6) A ___________ is a type of material through which an electric charge can flow through easily.
A
Insulator
B
Element
C
Rubber
D
Conductor
7) One example of a insulator is a ________.
A
Gold
B
Water
C
Pencil Eraser
D
Lead of a pencil (grapite)
8) A material through which an electric charge moves with difficulty (does not flow through easily) is called?
A
Molecules
B
Conductor
C
Insulator
D
Atoms
9) Suppose you have a set of lights that are wired in a parallel circuit. What will happen to the circuit if one of the bulbs burn out (stops working)?
A
All the other bulbs will still light up.
B
The circuit will not work.
10) A circuit with at least one break is called a ______ circuit.
A
Detached
B
Closed
C
Complete
D
Open
11) A circuit with no break is called a ______ circuit.
A
Broken
B
Faulty
C
Open
D
Complete
12) Name the four parts of a circuit.
A
think carefully
B
think carefully
C
think carefully
D
think carefully
13) What is the difference between an open circuit and an open circuit?
A
think carefully
B
think carefully
C
think carefully
D
think carefully
14) In a _____________ circuit, the electric charge can flow in only one circular path.
A
parallel
B
series
C
closed
D
open
*select an answer for all questions
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