Electricity
What is the continuous flow of electrons in a circuit called?
Electric current
If resistance is high, the current will be _________
Low
Substances can be ________ or ________
Physical or Chemical
The reactant is....
A substance before a chemical change
What does EXO mean?
The release of heat
How do we measure electric current?
An Ammeter
How do we measure resistance?
Ohms
States, colours and smells are _________ properties
Physical
Hydrogen and Oxygen react to create Water. What is the product?
Water
What does ENDO mean?
The absorption of heat
Power flowing from power plants into our homes is in __________ current
Alternating
The bulb will light up in a/an ________ circuit
Closed
Rustiness and flammability are ___________ properties
Chemical
In a closed/isolated system, mass in a chemical reaction is neither ____________ nor __________
Created nor destroyed
After an exothermic change the surrounding temperature will _________
RISE
The current used in batteries
Direct current
What does resistance do?
Slows the flow of electric current
Combustion is a ________ change
Chemical
What is the system in a study?
All things relevant to the study that are acted on
Breathing is an example of a/an ____________ change
Exothermic
Direct current flows in ______ direction whilst alternating current flows ______ and ______
One
Back
Forth
If we have multiple bulbs connected in a circuit, how should we connect them if we want the most current flowing?
What happens in a Chemical change?
A new product with a different chemical composition is created
If a reaction happens in an open system what happens to the mass and energy after the reaction?
The amount of both will change
Photosynthesis is an example of a/an __________ change
Endothermic