WorksheetsEnergy
Total questions: 27
Worksheet time: 1hrs 21mins
What are sources of heat?
(a)
Which are the types of energy sources?
natural
artificial
natural and artificial
none is correct
Write the examples of natural sources of heat
(a)
Write the examples of artificial sources of heat
(a)
We use (a) to measure the amount of heat
What does temperature tell us?
How cold something is
How warm something is
How freezing something is
How hot something is
We can measure temperature in
Degrees Celsius (ºC)
Degrees Fahrenheit (ºF) or Degrees Celsius (ºC)
Kelvin (K)
None is correct
We measure temperature with a (a)
There are 3 states of matter
(a)
What is the melting point?
Is the temperature a material changes from gas to solid
Is the temperature a material changes from ºC to ºF
Is the temperature a material changes from gas to liquid
Is the temperature a material changes from solid to liquid
Which is the melting point of water?
0ºC
100ºC
50ºC
10ºC
Which is the melting point of butter?
0ºC
45ºC
35ºC
25ºC
Which is the melting point of silver?
562ºC
962ºC
352ºC
252ºC
Which is the melting point of chocolate?
20ºC
30ºC
50ºC
40ºC
Which are the type of changes?
Phenomenal and chemical changes
Physical and phenomenal changes
phisician and chimical changes
physical and chemical changes
We change the state of matter of different material by (a) them
Physical changes are (a)
When physical changes occur .............................
the material changes its state
a new liquid appears
a new material is shown
a new substance appears
Chemical changes are (a)
When chemical changes occur .............................
the material changes its state
a new liquid appears
a new material is shown
a new substance appears
Which of the following examples can have a physical change?
watter
cake
butter
egg
Which of the following examples can have a chemical change?
watter
cake
butter
egg
How can we classify materials?
thermal conductors
Thermal insulator and thermal consulator
Thermal consulator
Thermal conductor and thermal insulator
What happens with thermal conductors?
(a)
Which ones are examples of thermal conductors?
metals
acid substances
water
All options are correct
What happens with thermal insulators?
(a)
Which ones are examples of thermal insulators?
metals and acid substances
acid substances
wood, plastic and rubber
All options are correct
