Science (3)

Science (3)

Answer the questions listed below to the best of your ability. If you do not understsnd the following please ask questions.

published on October 24, 20134 responses 0 5.0★ / 5

What two things does every circuit have?

Negative Charge
Positive Charge
An unbroken path and a power source.

What are two ways magnets can be used to produce electricity?

By moving a magnet through a coil of wire and by moving a coil of wire you can use wires through a magnetic field.
By moving a magnet current through a coil of wire and by moving a coil of wire you can use wires through a electric current.
By moving a field through a coil of wire and by moving a coil of wire you can use wires through a water current.

As a (BLANK) flows through a circuit, it causes a magnetic field T

Current
Electric current
flow
water

The continuous flow of negative charges through a material is called (BLANK) electricity.

current
series
attract

Name two things that use electromagnets?

They could be stronger or weaker
Fire alarms and telephones
Cats and Dogs

A material that allows electricity to flow through it easily

resistor
conductor
force

Which is more useful-current electricity or static electricity?

Current
Static
Both

Reduces the amount of electricity that can flow through a material

resistor
insulator
circuit

Magnetism and (BLANK) are related

magnet
electric
current
electricity

When can negative charges move from one object to another?

Anytime two objects rub together or touch
Anytime they touch they stick together
Never

Objects with opposite charges (BLANK) each other

Repel
Attract
Neutral

Where is a magnet's magnetism the strongest?

Towards the North and South parts of the poles.
Between the electrical current
At the poles of the magnets.

Name two things that are not attracted to a magnet?

Select the two correct answers
Paper
Sand
Wood
Metal
Coins

A circuit that has only one path is a (BLANK) circuit

Series
static
current

Push or pull

conductor
force
insulator

A material that does not allow electricity to flow through it

force
resistor
circuit
insulator

An unbroken path through path through which negative charges can flow

insulator
conductor
circuit

Objects with the same kind of charge (BLANK) each other

Repel
Attract
Neutral

The area around a magnet where the force of a magnet can act

Select the two correct answers
magnetism
magnetic field
magnet
electromagnet
magnetisms
magnetic fields
magnets
electromagnets

An object that is able to attract iron

magnet
electromagnet
magnetic field

A circuit that has more than one path is a (BLANK) circuit

Neutral
Parallel
horizontal

Magnets have a (BLANK) pole and a (BLANK) pole

South and North
West and East
North and South
East and West

The pushing or pulling force caused by a magnet

Select the two correct answers
magnetic flow
magnetic field
electromagnet
magnetism
magnetic flows
magnetic fields
electromagnets
magnetisms

When electrical charges build up on the surface of an object, (BLANK) electricity occurs

series
current
static

Produces electricity by using a coil of wire and a magnet

Select the two correct answers
electromagnet
generator
magnetic field
magnet
electromagnets
generators
magnetic fields
magnets

Objects that have the same number of positive and negative charges are?

Parallel
Neutral
Static

What are the two kinds of charges that particles of matter can have?

Positive
Negative
Both

A temporary magnet formed when electric current flows through a wire coiled around a metal core

Select the two correct answers
magnet
generator
electromagnet
magnetism
magnets
generators
electromagnets
magnetisms