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Electricity and Electrical Symbols Worksheet

Total questions: 21

Worksheet time: 16mins

Name
Class
Date
1.

What is the symbol for current?

a)

I

b)

V

c)

R

d)

Q

2.

What type of energy is current?

a)

Electrical energy

b)

Thermal energy

c)

Chemical energy

d)

Sound energy

3.

Define electricity.

a)

Electricity is the flow of electric charge, typically carried by electrons in a conductor.

b)

Electricity is the process of photosynthesis in plants.

c)

Electricity is the movement of tectonic plates beneath the Earth's surface.

d)

Electricity is the evaporation of water from oceans.

4.

What is the unit of measurement for current?

a)

Ampere (A)

b)

Volt (V)

c)

Ohm (Ω)

d)

Watt (W)

5.

What type of energy is voltage?

4 lines
6.

What is the symbol for potential difference?

a)

V

b)

P

c)

I

d)

R

7.

What is an ion?

4 lines
8.

In what direction does current flow?

a)

From positive to negative (conventional current), or from negative to positive (electron flow).

b)

From negative to negative only.

c)

From positive to positive only.

d)

In a circular loop with no defined direction.

9.

What electrical part does this schematic symbol represent?

a)

Resistor

b)

Capacitor

c)

Inductor

d)

Diode

10.

Draw the symbol for a cell.

a)

The symbol for a cell is two parallel lines, one longer (positive) and one shorter (negative), with a plus sign near the longer line.

b)

The symbol for a cell is a circle with a plus and minus sign inside it.

c)

The symbol for a cell is a triangle pointing upwards with a line through it.

d)

The symbol for a cell is a rectangle with a zigzag line inside.

11.

What electrical part does this schematic symbol represent?

a)

Resistor

b)

Capacitor

c)

Inductor

d)

Diode

12.

Current needs a ____________________ path to follow.

a)

complete or closed

b)

open or broken

c)

short or direct

d)

random or scattered

13.

To increase voltage, a group of cells should be connected:

a)

in series

b)

in parallel

c)

with a resistor

d)

with a capacitor

14.

How would you connect a group of cells to increase current?

a)

Connect them in series

b)

Connect them in parallel

c)

Connect them end to end

d)

Do not connect them

15.

A circuit is connected in series when:

a)

all components are connected end-to-end in a single path

b)

there are multiple paths for current to flow

c)

each component has its own separate circuit

d)

the voltage is the same across all components

16.

According to Kirchhoff's Law for Current in a Series Circuit, current is the ________ at all points of a series circuit.

a)

same

b)

different

c)

zero

d)

maximum

17.

For an ion to be negative, what sub-atomic particle must be in the majority?

a)

Proton

b)

Neutron

c)

Electron

d)

Positron

18.

Ionization means:

a)

the process of gaining or losing electrons to form ions

b)

the process of breaking down molecules into atoms

c)

the process of combining atoms to form molecules

d)

the process of changing a solid to a liquid

19.

For an ion to be positive, what sub-atomic particle must be in the majority?

a)

Proton

b)

Neutron

c)

Electron

d)

Photon

20.

If current in a circuit has a complete path to follow, what type of circuit is it called? It is called a ________.

a)

closed circuit

b)

open circuit

c)

short circuit

d)

broken circuit

21.

If current in a circuit does not have a complete path to follow, what type of circuit is it called? It is called an ________.

a)

open circuit

b)

closed circuit

c)

short circuit

d)

parallel circuit