Energy Changes - GCSE AQA

In an endothermic reaction the products have 

• more energy than the reactants
• less energy than the reactants
• the same energy as the reactants
• no energy

Tags

NGSS.HS-PS1-4

In an exothermic reaction the products have

• more energy than the reactants
• the same energy as the reactants
• less energy than the reactants
• no energy

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What units are used to measure energy?

• Watts
• Newtons
• Joules
• kilowatts

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same
• Increase
• Decrease

Tags

NGSS.HS-PS1-4

If the energy required to break the bonds is greater than the energy given out by making new bonds the reaction is

• Exothermic

• Endothermic

• Neutralisation

Tags

NGSS.HS-PS1-4

If the energy required to break the bonds is less than the energy given out by making new bonds the reaction is

• Exothermic

• Endothermic

• Neutralisation

Tags

NGSS.HS-PS1-4

What is energy?

• the ability to cause change
• the ability to resist change
• the ability to lack change
• the ability to 

Tags

NGSS.HS-PS3-2

During an endothermic reaction in a beaker, if we touched the beaker, it would feel _______.

• Warm

• Cold

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Is photosynthesis an exothermic or endothermic reaction?

• Endothermic
• Exothermic

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What happens to the bonds when 2 substances react

• They break so new bonds can form
• Nothing the bonds are too strong
• They change colour

Tags

NGSS.HS-PS1-4