Flashcards for synoptic

Question 1

what is current

Answer 1

The flow of charge

Question 2

How many loops does a parallel circuit have

Answer 2

more than 1

Question 3

how many loops does a series circuit have

Answer 3

1

Question 4

what is current measured in

Answer 4

Amps

Question 5

what is voltage

Answer 5

The amount of push a cell gives a current in a circuit

Question 6

what is potential difference

Answer 6

the difference in voltage before and after a component

Question 7

what is potential difference measured in

Answer 7

volts

Question 8

what is voltage measured in

Answer 8

volts

Question 9

what is used to measure potential difference

Answer 9

voltmeter

Question 10

what is resistance

Answer 10

the opposition to the flow of current in a circuit

Question 11

what is resistance measured in

Answer 11

ohms

Question 12

when does static electricity occur

Answer 12

when an object either loses or gains a negative charge

Question 13

what is a vector

Answer 13

Forces are represented by an arrow, which shows
the size of the force and the direction

Question 14

what is the driving force

Answer 14

is a push or pull that moves an object
forwards.

Question 15

what is friction

Answer 15

is a horizontal force which acts on objects
when they move against each other.

Question 16

what is the support force

Answer 16

is a vertical force that is exerted on
an object that is in contact with another object.

Question 17

what reduces friction

Answer 17

smooth surfaces

Question 18

what is then tension force

Answer 18

is transmitted through an object
when it is pulled by forces at opposite ends.

Question 19

what is the magnetic force

Answer 19

are strongest at the poles of a
magnet.

Question 20

what are electrostatic forces

Answer 20

occur between opposite
charges. T

Question 21

what is an electromagnet

Answer 21

When an electric current moves through a wire, a
magnetic field is created.

Question 22

what do chemical reactions involve

Answer 22

breaking chemical bonds

Question 22

are chemical reactions reversible

Answer 22

no

Question 22

what could physical changes be

Answer 22

colour shape size state of maatter

Question 23

are physical changes reversible

Answer 23

yes

Question 24

What’s a sign of chemical change

Answer 24

colour changes temperature changes bubbles of gas PH changes change of smell

Question 25

what does the law of conservation mass state

Answer 25

mass cannot be created or destroyed

Question 26

what is current

Answer 26

Current is the flow of charge (electrons) around the circuit.

Question 27

what is thermal decomposition

Answer 27

involves the breaking down of a substance
due to heating.

Question 28

what is the reaction when oxygen is gained

Answer 28

oxidation

Question 29

what does combustion mean

Answer 29

burning

Question 30

what does endothermic mean

Answer 30

reaction takes in energy from the
surroundings.

Question 31

what does exothermic mean

Answer 31

reaction transfers energy to the surroundings.

Question 32

what are fuels

Answer 32

materials that can be burnt to release energy

Question 33

what is condensation

Answer 33

when a gas turns into a liquid

Question 34

what is melting

Answer 34

when a solid turns into a liquid

Question 35

what is freezing

Answer 35

when a liquid turns into a solid

Question 36

what is boiling

Answer 36

when a liquid turns into a gas

Question 36

what is evaporation

Answer 36

when a liquid turns into a gas

Question 37

what do gas particles gain when the temperature is increased

Answer 37

Kinetic energy

Question 38

what are the units of force

Answer 38

newtons