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WorksheetsRevision for WA 1
Total questions: 20
Worksheet time: 8mins
Energy is the ability to do
exercise
force
power
work
When a rubber band is stretched, there is __________________.
chemical potential energy
elastic potential energy
gravitational potential energy
kinetic energy
Which of the following possess chemical potential energy?
A battery
An elastic band
An electric heater
A moving car
What is the energy conversion found in the diagram?
chemical potential energy to light energy
chemical potential energy to sound energy
light energy to chemical potential energy
sound energy to chemical potential energy
What is the energy conversion found in the diagram?
chemical potential energy to heat energy
electrical energy to heat energy
heat energy to chemical potential energy
heat energy to electrical energy
Which of the following is not a renewable source of energy
biofuel
crude oil
hydropower
solar energy
Which statement about energy is correct?
Energy can be destroyed but not created.
Energy can be destroyed and created.
Energy cannot be destroyed but can be created.
Energy cannot be destroyed nor created.
Why are renewable source sources of energy preferred?
They are clean and replaceable.
They are clean and non-replaceable.
They are replaceable and cause pollution.
They are non-replaceable and cause pollution.
Which of the following is Singapore's main source of energy?
solar power
wind power
fossil fuels
nuclear fuels
What energy conversion takes place when we charge our mobile phones?
chemical to electrical
electrical to chemical
chemical to heat
electrical to heat
We can measure the temperature of a cup of water by using a _____________________________.
liquid-in- glass thermometer
metal rod
our hands
thermostat
Two beakers of liquids, X oC and 60 oC are mixed. The final temperature is 80 oC. Which statement is true?
X = 60 oC
X = 80 oC
X < 80 oC
X > 80 oC
Heat is a form of energy that ________________.
moving objects have
only hot objects have
travels from a hotter to a colder region
travels from a colder to a hotter region
Which of the following expands the least when heated?
solid
liquid
gas
all expand the same amount
When the temperature of a liquid increases, _____________.
the volume of the liquid decreases
the volume of the liquid increases
the mass of the liquid decreases
the mass of the liquid increases
What is the reading on the thermometer?
38.0
38.1
38.2
38.3
Which of the following is not a method to conserve energy?
Turn off the electrical appliances when not in use.
Install solar panel on the rooftop to capture the solar energy for use
Use more public transports and cut down the use of private cars
Burn more fossil fuels to generate electricity.
___________________ is the measure of hot hot or cold something is.
boiling point
heat energy
melting point
temperature
The diagram below shows a balloon being placed over the mouth of a bottle.
What could be done to cause the balloon in X to become inflated like in Y?
Hold the balloon tightly.
Hold the balloon with cold hands.
Put the bottle in a basin of hot water.
Put the bottle in a refrigerator.
The diagram below shows a section of the road with small gaps. The small gaps are to allow for _________.
contraction of the road
expansion of the road
connection between the road
convenient replacement of the road
