Charging up ( static charge)

Question 1

Name the two types of charges

Answer 1

1- Positive charge - Protons
2- Negative charge - Electrons

Question 2

Describe how you can charge a balloon

Answer 2

You rub it against a neutral object. That leads to it collecting electrons. Therefore it is gaining negative charge.

Question 3

Describe the two possible effects a charged object can have on another charged
object.

Answer 3

If they were of the same charge, they would repel ( move away from each other) and if they were opposite, they would attract ( come closer to each other).

Question 4

Give one example of the balloon repelling another object. Explain why the balloon
repelled the object.

Answer 4

The balloon would repel and negativly charged object or the electrons on a neutral object because they both have the same charge

Question 5

State what an electric field is.

Answer 5

A region where a charged material or particle experiences a force.

Question 6

6 Explain why a charged balloon will affect the motion of nearby objects but an uncharged balloon will not. Explain your answer in terms of electric fields. (2marks)

Answer 6

A charged balloon will exert a force on nearby objects however uncharged balloons won’t exert a force because they haven’t been charged with a force.

Question 7

1 Explain how an object, for example, a balloon, can become charged. Use as many
scientific terms as possible in your answer. You must use the phrase electron transfer. (4marks)

Answer 7

A balloon ( which is a neutral), a jumper ( which is a neutral), and a wall ( which is a neutral). When the balloon is rubbed against a jumper, the jumper transfers all the electrons to the balloon, leaving the jumper with positive charge ( more protons than electrons) and the balloon with negative charge ( more electrons than protons). Opposite charges attract meaning that the balloon will stick to the jumper. If the balloon goes to the wall which is neutral, all the electrons will repel due to the same charges moving away from each other.

Question 8

Tap water contains impurities that are charged. Predict how a balloon will affect a
stream of tap water. Give a reason for your answer.

Answer 8

The water coming from the tap is neutral with positive and negative charges. The negatively charged balloon pushes electrons away from the stream of water nearest the balloon, leaving this area slightly positive. This positively charged water is attracted to the balloon so the stream is deflected.

Question 9

3 Compare how charged objects affect each other with how magnets affect each other. (2marks)

Answer 9

If both charged objects have the same charge, they would repel like the south pole of a magnet repelling another south pole magnet due to them being the same however if the charges are different such as one being negatively charged and the other being positively charged then they would attract like the north pole of a magnet and the south pole of a magnet would attract because they are both different.

Question 10

Define protons

Answer 10

A positively charged particle found in atoms.

Question 11

Define electrons

Answer 11

A negatively charged particle found in atoms. Electrons flow through a wire when a current flows.

Question 12

Define neutron

Answer 12

A neutral part of an atom

Question 13

define neutral

Answer 13

Neutral: Describes an object or particle that has no charge, or in which positive and negative charge cancel out, giving no charge overall.

Question 14

define attract and give 2 examples

Answer 14

Be pulled together, for example, opposite poles of a magnet attracts, positive and negative charges attract.

Question 15

define repel and give 2 examples

Answer 15

Be pushed away from each other, for example, electric charge repel.

Question 16

Define current

Answer 16

The flow of electrical charge ( electrons) around a circuit per second.

Question 17

Define lightning

Answer 17

A current through the air that produces light and sound.

Question 18

define non-contact

Answer 18

When a particle is not in contact with another particle due to repel.

Question 19

Draw a diagram of a neutral atom

Answer 19

Electrons always go on the outside ( in the outer shell) while protons and and neutrons go on the inside. ( same amounts of protons and electrons)

Question 20

What is static

Answer 20

Charge that is not moving

Question 21

Electrons jump from one charged area to another and this produces a …..

Answer 21

current

Question 22

what do we call charge that does not move?

Answer 22

static

Question 23

objects that lose electrons become negatively charged
true or false

Answer 23

false

Question 24

objects that gain electrons become positively charged
true or false

Answer 24

false

Question 25

An object can become charged by ________

Answer 25

adding electrons and removing electrons

Question 26

What happens when you rub a material against another material

Answer 26

Electrons get striped from their atom

Question 27

Explain how more electrons can be striped using a cloth and a rod

Answer 27

If the rubbing is done with more force,more electrons will be striped leaving a greater net negative change on the cloth and a greater positive change on the rod

Question 28

define static electricity and an example of static electricity

Answer 28

Static electricity is when charge “build up” on an object and doesn’t move, e.g. rubbing a rod:

Question 29

what will happen if you bring 2 rods of the same charge in contact and why

Answer 29

Two rods made of the same material will repel each other due to having the same charge:

Question 30

what will happen if you bring 2 rods of the opposite charge in contact and why

Answer 30

Two different rods will attract each other if they have different charge:

Question 31

Explain how lightning is made ( 3 marks)

Answer 31

Thunderclouds move around and produce positive or negative charge in the clouds.Electrons jump from one charged area to another and this produces a current.The current heats the air and you see LIGHTNING and hear thunder.