WorksheetsChapter 7 Electrical Energy
Total questions: 25
Worksheet time: 2hrs 46mins
Name
Class
Date
1.
A path followed by an electric current
a)
open circuit
b)
flow
c)
current
d)
circuit
2.
A complete electrical circuit or path through which electricity or current can pass or flow
a)
open circuit
b)
circuit
c)
closed circuit
d)
current
3.
Material that allows electric current or thermal energy to pass through easily
a)
conductor
b)
insulator
c)
flow
d)
circuit
4.
Flow of electricty in a wire or other conductor
a)
closed circuit
b)
current
c)
open circuit
d)
conductor
5.
Material that slows down or stops electric current or thermal energy from passing through
a)
flow
b)
open circuit
c)
insulator
d)
conductor
6.
A circuit or electrical path that is broken or incomplete so electricity cannot flow through it.
a)open circuit
b)conductor
c)insulator
d)closed circuit
7.
Which material would make the best conductor?
a)
paper
b)
copper
c)
glass
d)
wood
8.
When plugged in, these lights will either be all on or all off. Why?
a)
the bulbs will wear out all at once
b)
the electric current flows separately to each color bulb
c)
the electric current flows from one light bulb to the next
d)
the electric current flows cannot flow very easily through the bulbs
9.
This image represents what type of circuit?
a)
open
b)
closed
c)
series
d)
parallel
10.
What type of circuit is represented by the diagram?
a)
closed
b)
series
c)
open
d)
parallel
11.
Which of the following is an insulator?
a)
aluminum foil
b)
copper wire
c)
wood block
d)
paper clip
12.
A circuit must be closed for electrons to travel.
a)
true
b)
false
13.
Which sub-particle has a negative charge?
a)
proton
b)
neutron
c)
electron
d)
both a neutron and an electron
14.
How is static electricity produced?
a)
magnetic fields
b)
friction
c)
electrical current
d)
electrical discharge
15.
An example of a conductor is :
a)
a glass paperweight
b)
a plastic cap
c)
a metal nail
d)
a wooden handle
16.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
17.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
18.
Voltage is measured in __.
a)
volts.
b)
watts.
c)
coulombs.
19.
a device that converts chemical energy into electrical energy and is made of two or more cells
a)
battery
b)
cell
c)
electrolyte
d)
electrode
20.
what causes lightning
a)
Mr.B
b)
discharge of electrical energy
c)
rain
d)
thunder
21.
A giant electric discharge occurring when negative charges jump between the cloud and the ground.
a)
static electricity
b)
electric current
c)
lightning
d)
electric discharge
22.
A switch that opens a circuit by turning itself off is a
a)
circuit breaker
b)
motor
c)
electromagnet
d)
insulator
23.
two objects with opposite charges will move towards each other
a)
attract
b)
repel (repulsion)
c)
conduct
d)
insulate
24.
the charging of an object by the contact of a charged object to a neutral object (like touching a door knob)
a)
induction
b)
conduction
c)
friction
25.
When socks get stuck to towels in your dryer, this is an example of________________
a)
current electricity
b)
static electricity
100 %
