Science quiz

Question 1

What are responding variables

Answer 1

These are the variables that are measured and controlled, essentially asking what are you looking for

Question 2

What are manipulated variables

Answer 2

These are variables that are changed

Question 3

What are controlled variables

Answer 3

These are variables that will not be changed

Question 4

What are Fields

Answer 4

Fields are an area of influence around an object that has a charge (electric field), magnet(magnetic field), mass(gravitational fields)

Question 5

What do fields create

Answer 5

Fields create forces

Question 6

What can be used to study fields

Answer 6

A test body

Question 7

What are some test bodies that can be used to study magnetic fields, electric fields and gravitational fields

Answer 7

Compass, charge, anything that has mass

Question 8

What is a test body

Answer 8

A test body is an observable object that can experience force due to the presence of a field

Question 9

are the fields stringer when they are farther or closer together?

Answer 9

they are stronger when they are closer together

Question 10

What are insulators and conductors and give examples for each

Answer 10

Conductors allow the flow of electrons therefore they are not easily charged e.g metals and insulators do not allow the flow of electrons so they are easily charged e.g plastic, wool

Question 11

From what object to what object do electrons want to move from e.g positive or negative and what is this called.

Answer 11

They like to move from negative objects to positive objects.
It is called Discharging

Question 12

what generates a magnetic field

Answer 12

when a charged particle moves

Question 13

why is an electromagnet not a permanent magnet

Answer 13

This is because when electricity stops flowing through it, it no longer works

Question 14

what are elctromagnet’s made up of

Answer 14

A coil of wire, battery and metal

Question 15

Explain how a non permanent magnet is formed

Answer 15

Electrons flow through the battery and the conducting wire and creates a magnetic field which magnetises the iron creating a non permanent magnet.

Question 16

Explain how a permanent magnet is formed

Answer 16

A permanent magnet is formed when there are moving charges in a metal which creates a magnetic field that attracts metal

Question 17

What type of devices are motors

Answer 17

They are energy conversion devices

Question 18

list 4 ways to improve the motor

Answer 18

stronger magnets, more coils, less friction, more current