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WorksheetsC5 AQA KKI
Total questions: 48
Worksheet time: 16mins
Name
Class
Date
1.
What are the units for energy
a)
Joules
b)
Newtons
c)
Kg
d)
Seconds
2.
What type of reaction releases heat energy
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Photosynthesis
3.
What type of reaction takes in heat energy
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Respiration
4.
In what type of reaction do the reactants has less energy than the products
a)
Exothermic
b)
Endothermic
5.
In what type of reaction do the reactants have more energy than the products
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Photosynthesis
6.
How can you tell if a reaction is exothermic?
a)
Rise in temperature
b)
Fall in temperature
c)
Changes colour
d)
Bubbles
7.
How can you tell if a reaction is endothermic?
a)
Rise in temperature
b)
Fall in temperature
c)
Changes colour
d)
Bubbles
8.
Which of these is an exothermic reaction?
a)
Combustion
b)
Photosynthesis
c)
Thermal decomposition
9.
Which of these is an exothermic reaction?
a)
Respiration
b)
Photosynthesis
c)
Thermal decomposition
10.
Which of these is an endothermic reaction?
a)
Respiration
b)
Combustion
c)
Thermal decomposition
11.
Which of these is an endothermic reaction?
a)
Respiration
b)
Combustion
c)
Photosynthesis
12.
What type of reaction is this an energy profile for?
a)
Endothermic
b)
Exothermic
13.
What type of reaction is this an energy profile for?
a)
Endothermic
b)
Exothermic
14.
The energy needed to start the reaction is called the
a)
Activation energy
b)
starting energy
c)
Maximum energy
d)
Change in energy
15.
Breaking bonds is
a)
Endothermic
b)
Exothermic
16.
Making bonds is
a)
Endothermic
b)
Exothermic
17.
What are the units for energy
a)
Joules
b)
Newtons
c)
Kg
d)
Seconds
18.
What type of reaction releases heat energy
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Photosynthesis
19.
What type of reaction takes in heat energy
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Respiration
20.
In what type of reaction do the reactants has less energy than the products
a)
Exothermic
b)
Endothermic
21.
In what type of reaction do the reactants have more energy than the products
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Photosynthesis
22.
How can you tell if a reaction is exothermic?
a)
Rise in temperature
b)
Fall in temperature
c)
Changes colour
d)
Bubbles
23.
How can you tell if a reaction is endothermic?
a)
Rise in temperature
b)
Fall in temperature
c)
Changes colour
d)
Bubbles
24.
Which of these is an exothermic reaction?
a)
Combustion
b)
Photosynthesis
c)
Thermal decomposition
25.
Which of these is an exothermic reaction?
a)
Respiration
b)
Photosynthesis
c)
Thermal decomposition
26.
Which of these is an endothermic reaction?
a)
Respiration
b)
Combustion
c)
Thermal decomposition
27.
Which of these is an endothermic reaction?
a)
Respiration
b)
Combustion
c)
Photosynthesis
28.
The energy needed to start the reaction is called the
a)
Activation energy
b)
starting energy
c)
Maximum energy
d)
Change in energy
29.
Breaking bonds is
a)
Endothermic
b)
Exothermic
30.
Making bonds is
a)
Endothermic
b)
Exothermic
31.
What are the units for energy
a)
Joules
b)
Newtons
c)
Kg
d)
Seconds
32.
What type of reaction releases heat energy
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Photosynthesis
33.
What type of reaction takes in heat energy
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Respiration
34.
In what type of reaction do the reactants has less energy than the products
a)
Exothermic
b)
Endothermic
35.
In what type of reaction do the reactants have more energy than the products
a)
Exothermic
b)
Endothermic
c)
Thermal decomposition
d)
Photosynthesis
36.
How can you tell if a reaction is exothermic?
a)
Rise in temperature
b)
Fall in temperature
c)
Changes colour
d)
Bubbles
37.
How can you tell if a reaction is endothermic?
a)
Rise in temperature
b)
Fall in temperature
c)
Changes colour
d)
Bubbles
38.
Which of these is an exothermic reaction?
a)
Combustion
b)
Photosynthesis
c)
Thermal decomposition
39.
Which of these is an exothermic reaction?
a)
Respiration
b)
Photosynthesis
c)
Thermal decomposition
40.
Which of these is an endothermic reaction?
a)
Respiration
b)
Combustion
c)
Thermal decomposition
41.
Which of these is an endothermic reaction?
a)
Respiration
b)
Combustion
c)
Photosynthesis
42.
The energy needed to start the reaction is called the
a)
Activation energy
b)
starting energy
c)
Maximum energy
d)
Change in energy
43.
Breaking bonds is
a)
Endothermic
b)
Exothermic
44.
Making bonds is
a)
Endothermic
b)
Exothermic
45.
What type of reaction is this an energy profile for?
a)
Endothermic
b)
Exothermic
46.
What type of reaction is this an energy profile for?
a)
Endothermic
b)
Exothermic
47.
What type of reaction is this an energy profile for?
a)
Endothermic
b)
Exothermic
48.
What type of reaction is this an energy profile for?
a)
Endothermic
b)
Exothermic
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