Electricity Vocabulary

1.

Multiple Choice

30 sec

1 pt

An atom is

the smallest unit into which matter can be divided that still has the properties of an element (e.g. hydrogen, oxygen, carbon, etc.)

the smallest thing in the world

the same as a molecule (e.g. water which is made of hydrogen and oxygen)

the movement of many electrons

2.

Multiple Choice

30 sec

1 pt

An electron is...

the centre of an atom

a negatively-charged subatomic particle that orbits an atom's nucleus

electricity

where protons and neutrons are

3.

Multiple Choice

30 sec

1 pt

The nucleus of an atom...

is negatively charged

contains electrons

contains protons and neutrons

surrounds the atom

4.

Multiple Choice

30 sec

1 pt

Electricity is...

the co-ordinated movement of many electrons

the random movement of electrons

always safe

a device that gives energy to electrons

5.

Multiple Choice

30 sec

1 pt

Static electricity is...

the flow of electrons in a circuit

the random movement of electrons

a flow of electrons that pulsates back and forth many times per second

the sudden movement of many electrons from one object to another

6.

Multiple Choice

30 sec

1 pt

Current electricity is...

the flow of electrons in a circuit

the random movement of electrons

a flow of electrons that pulsates back and forth many times per second

the sudden movement of many electrons from one object to another

7.

Multiple Choice

30 sec

1 pt

A circuit is...

a path for transmitting electricity that always includes a battery, light bulb and wire

a path for transmitting electricity that includes a power source, load and conductor

the flow of electrons

the flow of electrons in only one direction (e.g. away from a battery)

8.

Multiple Choice

30 sec

1 pt

A power source is...

a material that allows electrons to easily move through it

a device that needs current electricity to function (e.g. lights, motors, computers, appliances)

a device that gives energy to electrons (e.g. a battery or generator)

a material that resists the flow of electrons

9.

Multiple Choice

30 sec

1 pt

A conductor is...

a material that resists the flow of electrons

a material that allows electrons to easily move through it

a device that needs current electricity to function (e.g. lights, motors, computers, appliances)

a machine that creates an electrical output

10.

Multiple Choice

30 sec

1 pt

An insulator is...

a material that resists the flow of electrons

a material that allows electrons to easily move through it

a device that needs current electricity to function (e.g. lights, motors, computers, appliances)

a machine that creates an electrical output

11.

Multiple Choice

30 sec

1 pt

An generator is...

a machine that uses electricity to create motion

a motor that requires electricity to work

a machine that creates electricity often by turning a copper coil in a magnetic field

all generators run on gasoline

12.

Multiple Choice

30 sec

1 pt

Direct current is...

the flow of electrons in a circuit

the sudden movement of electrons from one object to another

a flow of electrons that pulsates back and forth many times per second (e.g. from a generator)

a flow of electrons in only one direction (e.g. away from a battery)

13.

Multiple Choice

30 sec

1 pt

Alternating current is...

the flow of electrons in a circuit

the sudden movement of electrons from one object to another

a flow of electrons that pulsates back and forth many times per second (e.g. from a generator)

a flow of electrons in only one direction (e.g. away from a battery)

14.

Multiple Choice

30 sec

1 pt

A series circuit is...

the flow of electrons in only one direction

a flow of electrons that pulsates back and forth many times per second

a path for transmitting electricity in which the whole current flows through each load

a branching path for transmitting electricity in which the current divides and only part of it flows along any branch

15.

Multiple Choice

30 sec

1 pt

A parallel circuit is...

the flow of electrons in only one direction

a flow of electrons that pulsates back and forth many times per second

a path for transmitting electricity in which the whole current flows through each load

a branching path for transmitting electricity in which the current divides and only part of it flows along any branch

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