P3.1

Question 1

Only ____ materials can becoming charged

Answer 1

Insulated

Question 2

What direction do field lines go to and from

Answer 2

From positive to negative

Question 3

When do charged objects experience a force

Answer 3

Charged objects inside the electric field of other charged objects experience a force

ELECTROSTATIC FORCE OF ATTRACTION OR REPULSION

Question 4

Explain why you may get an electric shock if you walk in a nylon carpet and then touch a metal radiator

Answer 4

While walking on the carpet there will be two insulators (shoes and carpet) rubbing each other
Consequently, electrons will get transferred in between the shoes and the carpet leaving behind charged ions (positively or negatively)
The more they rub the more the static electricity builds up and when we touch a metal, which is a conductor, electrons will move to the Earth (current) and we will feel an electric shock.

Question 5

Answer 5

Battery

Question 6

Answer 6

Cell

Question 7

Answer 7

Switch

Question 8

Answer 8

Lamp

Question 9

Answer 9

Diode

Question 10

Answer 10

LED

Question 11

Answer 11

Ammeter

Question 12

Answer 12

Resistor - fixed resistor

Question 13

Answer 13

Variable resistor

Question 14

Answer 14

Fuse

Question 15

Answer 15

Heater

Question 16

Answer 16

Voltmeter

Question 17

Answer 17

Light dependent resistor

Question 18

Answer 18

Thermistor

Question 19

Define electric current

Answer 19

Rate of flow of charge

Question 20

Current formula

Answer 20

Question 21

Which way does the diode face

Answer 21

Arrow faces towards negative

As current flows from positive to negative

Question 22

Is the big line or the little line the positive terminal in a battery / cell

Answer 22

Question 23

How does lighting form

Answer 23

In a storm, clouds move over each other
This causes them to become charged when electrons are transferred between them

Since the ground is neutral, the negative charges from the cloud jump to meet the positive charges on the ground creating a giant spark (a current from a transfer of charge)

This phenomenon is known as lightning

Question 24

What is an electric field

Answer 24

a region where charges experience a force