Quiz about Mcgraw Hil l- inspire science -Electricity and magnetism.

Question 1

Wires do not carry electrical charge.

Accepted Answer

false

Answer

True

Question 2

The magnet attracts the paper clips.

Accepted Answer

True

Answer

false

Question 3

The magnet repels each other if they are facing different poles.

Accepted Answer

false

Answer

True

Question 4

All matter is made up of particles.

Accepted Answer

True

Answer

false

Question 5

Some particles either have a positive charge or a negative charge.

Accepted Answer

True

Answer

false

Question 6

You can see electrical charge.

Accepted Answer

false

Answer

True

Question 7

A discharge occurs when static electricity moves from one object to another.

Accepted Answer

True

Answer

false

Question 8

Static electricity does not cause the sock to stick the blanket.

Accepted Answer

false

Answer

True

Question 9

All objects are made of charged particles.

Accepted Answer

True

Answer

false

Question 10

Most objects have same number of positive and negative particles.

Accepted Answer

True

Answer

false

Question 11

You do not use electric current every day.

Accepted Answer

false

Answer

True

Question 12

We use energy from an electric current to produce light.

Accepted Answer

True

Answer

false

Question 13

Electric current does not need a path to flow.

Accepted Answer

false

Answer

True

Question 14

When a current flows in a wire, the coil becomes a magnet.

Accepted Answer

True

Answer

false

Question 15

The magnetic force is the same at all points on a magnet.

Accepted Answer

false

Answer

True

Question 16

oppesite poles attract or pull toward each other. so, a north pole will be attracted to a north pole.

Accepted Answer

false

Answer

True

Question 17

Magnetic field strength decreases when the distance increases.

Accepted Answer

True

Answer

false

Question 18

Magnets can pull objects without touching them.

Accepted Answer

True

Answer

false

Question 19

What happens to charged particles when two objects touch?

Accepted Answer

They can move from one object to the other.

Answer

Nothing ever happens.

Answer

They lose their charge.

Question 20

Two negatively charged ballons will ........... each other.

Accepted Answer

repel

Answer

attract

Answer

nothing ever happens

Question 21

A flow of electrical charges is known as ............

Accepted Answer

electrical current

Answer

Resistance

Answer

static electricity

Answer

voltage

Question 22

An object with a positive charge and an object with a negative charge will ......... each other.

Accepted Answer

attract

Answer

repel

Answer

nothing ever happens

Question 23

electrical charges can be either positive or .......................

Accepted Answer

negative

Answer

balanced

Answer

obsorbed

Question 24

The build-up of electrical charges on the surface of different objects causes

Accepted Answer

static electricity

Answer

resistance

Answer

friction

Answer

voltage

Question 25

what are some products that use electric currents to produce light, sound, or motion?

Accepted Answer

radio

Accepted Answer

lamp

Accepted Answer

blender

Answer

candle

Question 26

static electricity is the build-up of .......... particles.

Accepted Answer

Charged

Answer

uncharged

Question 27

Which devices use a magnet?

Accepted Answer

compass

Answer

light bulb

Answer

fuse

Answer

circuit breaker

Question 28

......................is the ability of an object to push or pull another object made of iron, or steel. or nickel.

Accepted Answer

magnetism

Answer

force

Answer

pole.

Question 29

several metal thumbtacks spilled on the classroom floor. which tool should be used to pick them up in the fastest and safest way?

Accepted Answer

bar magnet

Answer

battery

Answer

pair of tweezers

Answer

steel rod

Question 30

Magnets attract

Accepted Answer

paper clip

Answer

rubber band

Answer

piece of wood

Question 31

What type of charges do these ballons have?

Accepted Answer

like charges

Answer

opposite charges

Answer

neutral charges

Question 32

Which pair of magnetic poles attract one another?

Accepted Answer

one north pole and one south pole

Answer

two north poles

Answer

two south poles

Answer

one neutral pole and one south pole.

Question 33

A teacher gives Aly a problem to solve. The teacher gives him a mixture of iron filings and table salt on a paper plate. The teacher tells Aly to use one of the tools shown to separate the iron filings from the salt without touching the mixture with the tool.

Describe how he can solve the problem with one of the tools.

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

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