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WorksheetsKozian Physics Circuit Basics
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
2.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
3.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
4.
this is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
5.
When creating a circuit, what type of energy flows out of the battery?
a)
heat energy
b)
electrical energy
c)
light energy
d)
mechanical energy
6.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
chris barton
7.
The flow of electricity
a)
current
b)
energy
c)
electricity
8.
Electric current can only flow through...
a)
an open circuit
b)
a closed circuit
9.
Why are electrical wires made from metal?
a)
Metal is cheap.
b)
To conduct electricity.
c)
So they can bend easily.
d)
To insulate.
10.
A __________________ is the flow of electrons through a material.
a)
circuit
b)
current
c)
switch
d)
load
11.
A device that uses electricity is called a _________________.
a)
switch
b)
load
c)
current
d)
conductor
12.
Voltage is measured in __.
a)
volts.
b)
watts.
c)
coulombs.
13.
What is the formula for resistance?
a)
V x I = R
b)
R = V/I
14.
Resistance is measured in ___.
a)
watts.
b)
amps.
c)
ohms.
15.
What are the two factors that influence resistance?
a)
power and energy
b)
current and volts
16.
the tendency for a material to oppose the flow of electrons
a)
current
b)
circuit
c)
resistance
d)
difference
17.
Current is measured in....
a)
Amps
b)
Volts
c)
Ohms
d)
Coulombs
18.
Resistance is a measure of....
a)
the energy per unit charge in a circuit
b)
how hard it is for electrons to move through the circuit
c)
how hard it is for electrons to move through the battery
d)
the number of charge carriers in a circuit
19.
Ohm's law states that:
a)
V=IR
b)
V=I/R
c)
V=R/I
d)
V=I+R
20.
How do you calculate voltage?
a)
Current X Resistance
b)
Resistance ÷ Current
c)
Current ÷ Resistance
d)
Measure it with a ruler
21.
How do you calculate current
a)
Resistance X Voltage
b)
Voltage X Resistance
c)
Resistance ÷ Voltage
d)
Voltage ÷ Resistance
22.
How do you calculate resistance?
a)
Voltage X Current
b)
Current ÷ Voltage
c)
Voltage ÷ Current
d)
Current X Amps
23.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
24.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
25.
What word means how hard it is for electrons to flow through.
a)
Current
b)
Voltage
c)
Resistance
d)
Power
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