Font size
WorksheetsApplied Revision
Total questions: 107
Worksheet time: 1hrs 1mins
If an atom has no charge, which of the following must be true?
It has more neutrons than protons or electrons.
There are only neutrons inside the atom.
Its number of protons is equal to its number of electrons.
The neutrons in the atom outnumber the electrons and protons.
Atoms form ions because they want to have a (a) outer shell.
How is an ionic bond formed?
Sharing of electrons
Delocalised electrons
Transfer of electrons
Select all of the statements below that are correct to describe the structure and properties of ionic compounds...
They have high melting and boiling points
They have a lattice structure
The ions are held together by intermolecular forces
They can conduct electricity when molten
They can conduct electricity when solid
Which of the below is an ionic compounds?
Ni
MgCl2
H2O
CH4
Oxygen is in group 6 of the periodic table, which ion would it form?
O-
O+
O2-
O2+
Ionic bonds are formed between...
Non - metals
A metal and a non-metal
Metals
Why does the melting point of metals increase across period 3, from Sodium (Na) to Aluminium (AI)?
Size of atoms gets smaller
Attraction force between nuclei and free electron increases
Increased space between the valence electrons in the "sea"
Increased number of valence electrons contributed to the "sea"
List four factors that affects the rate of a reaction
temperature
concentration
surface area
volume
catalysts
A temperature increase causes the particles ......
to slow down
move faster
collide higher
in the right order
Why does a higher concentration increase the rate of reaction?
it increases the amount of reactants
it lowers the activation energy
it increases the energy of particle collisions
it increases the frequency of particle collisions
The ______________is required to break the bonds of the reactants.
Carbonic energy
Activation energy
Plutonic energy
Energi Gaib
A temperature increase causes the particles ......
to slow down
move faster
collide higher
in the right order
A radioactive nuclide has a ____ stable nucleus than a non-radioactive nucleus of the same element.
more
less
identical
small

Why does alpha decay occur?
The nucleus is too large to be stable
The proton to neutron ratio is unstable
The nucleus is in an excited state. This usually follows other types of decay.
Why does beta decay occur?
The nucleus is too large to be stable
The proton to neutron ratio is unstable
The nucleus is in an excited state. This usually follows other types of decay.
Why does gamma decay occur?
The nucleus is too large to be stable
The proton to neutron ratio is unstable
The nucleus is in an excited state. This usually follows other types of decay.
What type of protein is in milk?
HBV
LBV
Saturated
Unsaturated
What type of fat is in milk? Type in your answer
(a)
What is the name of the milk sugar that some people are intolerant to (cannot digest)?
(a)
What mineral is milk high in?
Iron
Calcium
Fluoride
Fibre
What vitamin does milk lack?
Vitamin A
Vitamin B
Vitamin C
Vitamin D
Which type of milk should be served to young children?
Whole milk
Low fat milk
Skimmed milk
Flavoured milk
How would you describe the price of milk in general?
Cheap
Very expensive
What 2 types of carbohydrate is milk lacking?
Sugar and Starch
Starch and Sugar
Sugar and Fibre
Starch and Fibre
Type 3 culinary uses of milk. Give a food example of each. Example: Soups e.g cream of mushroom
Fill in the blanks. Yoghurt is made when harmless ________ are added to pasteurised _____
(a)
Which of the following can be added to natural yoghurt to flavour it?
Chicken
Milk
Cabbage
Fruit
Type a disadvantage of flavoured yoghurts (e.g Mooju milkshakes, chocolate, fruit or other flavours)
What is the brand name of a very popular low fat yoghurt that is high in artificial sugar?
(a)
Type 3 culinary uses of yoghurt in the diet.
Which of the following animals is cheese made from? (there is more than one correct answer!)
Cow
Buffalo
Goat
Mouse
Fill in the blanks. The enzyme (a) is found in animal stomachs and it is used in the formation of cheese.
Which part of curdled milk is used to form cheese?
Curds
Whey
the first stage of cheese production is the pasteurisation of milk. What temperature and time frame is used in pasteurisation?? :)
100 degrees, 5 seconds
78 degrees, 15 seconds
72 degress, 25 seconds
22 degrees, 100 seconds
Pasteurisation kills Pathogenic bacteria. What does "Pathogenic" mean?
Healthy
Hard to kill
Disease causing
Disease curing
Homogenisation distributes the _____ molecules in milk to improve the flavour of milk.
protein
fat
sugar
calcium
Step 2 in cheese production is when a starter culture is added. What does lactose change/ break down into?
Lactase
Lactic acid
Cellulose
Protein
When rennet is added to milk, what does the milk seperate into?
Milk and Cheese
Curds and Water
Cheese and Whey
Curds and Whey
Select 2 reasons why salt is added to the cheese curds?
Adds flavour
Removes flavour
Preserves the cheese
Removes the cheesy smell
Step 5 of the Cheese making process is pressing curds into moulds for 6 to 12 months. Why is this done?
To develop mould
To develop flavour
To reduce bacteria
To reduce the cheesy smell
Which of the following cheese is classified as Hard cheese?
Mozzarella
Cheese strings
Cheddar
Stilton
What type of soft cheese is used mainly on pizza?
Cottage
Brie
Mozzarella
Feta
Which 2 of the following are types of Processed cheese?
Cheese strings
Stilton
Cheese slices
Moulded cheese
What is this a picture of that has become very popular?
A stack of cheese, duh.
Cheese boardgame
Cheese wedding cake
Cake that looks like cheese
Photosynthesis occurs in:
Mitochondria
Chloroplasts
Humans
Animals
What are the reactants in Photosynthesis?
Sun, CO2, glucose
glucose and oxygen
sun, carbon dioxide, water
water, glucose
The process in which plant cells make energy
Exothermic
Endothermic
Cellular Respiration
Photosynthesis
In cellular respiration, carbon starts out in the glucose molecule, but ends up in a(n)
oxygen molecule
water molecule
CO2 molecule
C6H12O2 molecule
In photosynthesis, what kind of molecule does hydrogen start in?
water
oxygen
glucose
carbon dioxide
In what process does ATP get created?
photosynthesis
cellular respiration
radiation
chemical
How do humans get glucose so they can live?
breathe it in
photosynthesis
eat food
drink liquids
Mitochondria and Chloroplasts are:
organelles
cells
only in humans
only in plants
Cellular respiration happens
only in plants
only in animals
only in humans and animals
in plants and animals
The products of cellular respiration are
air and water
carbon dioxide, water, and ATP
glucose and carbon dioxide
ATP, glucose, and oxygen
For photosynthesis, a plant needs water, sun, and...
oxygen
carbon dioxide
glucose
mitochondria
For humans to live, we need energy. What is the name of the energy that the body makes in cellular respiration?
sugar
glucose
ATP
fructose
What is a product of photosynthesis AND a reactant for cellular respiration?
oxygen
water
carbon dioxide
Doctor Pepper
The sun gives us what type of energy?
chemical
radiation
potential
kinetic
Cellular respiration happens in the
plants only
animals only
chloroplasts
mitochondria
