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WorksheetsMatter, Forces and Energy
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
During a chemical reaction bonds are
a)
broken (requiring energy) and new bonds formed (releasing energy).
b)
broken (doesn’t requiring energy) and new bonds formed (releasing energy).
c)
broken (requiring energy) and new bonds broken (releasing energy).
d)
formed (requiring energy) and new bonds formed (releasing energy).
2.
In an Exothermic Reaction energy is
a)
Released into the environment
b)
Taken in from the environment
3.
In an Endothermic Reaction energy is
a)
Released into the environment
b)
Taken in from the environment
4.
Chemical bonds form between
a)
Atoms
b)
Molecules
c)
Elephants
5.
What is the name of the chemicals that react in a chemical reaction
a)
Reactant
b)
Products
c)
Compounds
d)
Molecules
6.
What is the name of the chemicals that are produced in a chemical reaction
a)
Reactant
b)
Products
c)
Compounds
d)
Molecules
7.
The three things a fire needs are:
a)
Heat, Reactants, Products
b)
Fuel, Reactants, Products
c)
Fuel, Oxygen, Products
d)
Fuel, Oxygen, Heat
8.
Another word for the chemical reaction in fire is
a)
Combustion
b)
Conjunction
c)
Conviction
d)
Decomposition
9.
Thermal decomposition is when
a)
A compound breaks down in a chemical reaction when heat is added
b)
A compound breaks down in a chemical reaction when cold is added
c)
A compound breaks down in a chemical reaction when Mr Casey is added
10.
What is the Periodic Table?
a)
The arrangement of elements in a table that shows similar properties and atomic number
b)
The arrangement of compounds in a table that shows similar properties and atomic number
c)
The arrangement of molecules in a table that shows similar properties and atomic number
11.
What are groups in the periodic table?
a)
Columns of elements with similar properties
b)
Columns of elements with different properties
c)
Rows of elements with similar properties
d)
Rows of elements with different properties
12.
What are Periods in the periodic table?
a)
Columns of elements in order of their atomic number
b)
Columns of elements with different properties
c)
Rows of elements in order of their atomic number
d)
Rows of elements with different properties
13.
What happens to the particles when a piece of rock is heated up?
a)
they get bigger
b)
they get smaller
c)
they stay the same size
14.
What happens to a bar of steel when it is cooled down?
a)
it gets longer
b)
it gets shorter
c)
it stays the same length
15.
What happens to the pressure in a metal spray can when it is heated up?
a)
it increases
b)
it decreases
c)
it stays the same
16.
Why do gases exert a pressure on the walls of their container?
a)
the gas particles hit each other
b)
the gas particles move quickly in all directions
c)
the gas particles hit the container walls
17.
What process causes smelly gases to spread around a room on their own?
a)
refusion
b)
diffusion
c)
diffraction
18.
In which two states are the particles randomly arranged?
a)
liquid and solid
b)
liquid and gas
c)
gas and solid
19.
In which state are the particles only able to vibrate in a fixed position?
a)
solid
b)
liquid
c)
gas
20.
Which state can be compressed or squashed easily?
a)
solid
b)
liquid
c)
gas
21.
Which state cannot flow from place to place?
a)
solid
b)
liquid
c)
gas
22.
Particles in which state have no bonds?
a)
liquid
b)
solid
c)
gas
23.
Particles in which state sit in a regular pattern and are held together tightly by bonds?
a)
solid
b)
liquid
c)
gas
24.
How many different atoms are there in a compound?
a)
one
b)
always two
c)
two or more
25.
Which statement about atoms and molecules is correct?
a)
elements always exist as separate atoms.
b)
elements always exist as pairs of atoms called molecules.
c)
elements and compounds can exist as molecules.
26.
Is water an element, compound or mixture?
a)
element
b)
compound
c)
mixture
27.
Which is the best way to get salt from salty water?
a)
evaporation
b)
filtration
c)
distillation
28.
Which of these three metals is the most reactive: potassium, iron or gold?
a)
potassium
b)
iron
c)
gold
29.
Which of these three metals is the least reactive: iron, copper or platinum?
a)
iron
b)
copper
c)
platinum
30.
Copper and oxygen react to form which compound?
a)
copper oxygen
b)
copper oxide
c)
carbon dioxide
31.
Which of these is the best way to measure a force?
a)
Using a force meter
b)
Using a ruler
c)
Using a thermometer
32.
Forces can be:
a)
Pushes only
b)
Pulls only
c)
Pushes and pulls
33.
What is the unit of force called?
a)
The newton, n
b)
The newton, N
c)
The neutron, N
34.
What can we say about the forces on an object that is not moving?
a)
There must only be one force acting on it
b)
The forces must be balanced
c)
It must be very heavy
35.
What happens to the air resistance on a car as the car goes faster?
a)
It decreases
b)
It stays the same
c)
It increases
36.
A force of 4 N acts on a lever 2 m from the pivot. What is the moment?
a)
8 Nm
b)
6 Nm
c)
2 Nm
37.
One way to increase the turning force on a spanner is to:
a)
Use a shorter spanner
b)
Use a longer pivot
c)
Use a longer spanner
38.
Gravity is an example of what?
a)
A contact force
b)
An un-contact force
c)
A non-contact force
39.
What store of energy does friction always produce?
a)
Heat
b)
Light
c)
Gravitational potential
40.
What effect does friction have on an eraser?
a)
It heats it up and wears it up
b)
Heats it up and wears it down
c)
It cool's it down and wears it down
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