WorksheetsUltimate Quest
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
The graph shows the pH of a sample of soil as lime (calcium oxide) is added. How much lime has to be added to make the soil most alkaline?
a)
1.0 g
b)
2.0 g
c)
3.0 g
d)
4.0 g
2.
In an experiment, a student added an acid to an alkali. What are the products obtained?
a)
salt + hydrogen
b)
water + hydrogen
c)
salt + water
d)
water + carbon dioxide
3.
A mixture of two sugars was compared with four different sugars( labelled as 1, 2, 3 and 4) using chromatography. The results are shown in the diagram below. Which two sugars does this mixture contain?
a)
1 and 2
b)
1 and 4
c)
2 and 3
d)
2 and 4
4.
The figure shows a simple method of obtaining cleaner water by removing dirt from the dirty water. Which one of the following separation techniques is used to obtain cleaner water?
a)
dissolving
b)
distillation
c)
evaporation
d)
filtration
5.
Which of the following is not a separation technique?
a)
chemical reaction
b)
filtration
c)
heating
d)
distillation
6.
Many crops will not grow well in acidic soil. What type of chemical reaction takes place when farmers add calcium hydroxide to the soil?
a)
decomposition
b)
neutralisation
c)
fertilisation
d)
filtration
7.
A mobile phone becomes hot when it is being charged because
a)
electrical energy is converted to heat energy only.
b)
electrical energy is converted to chemical and heat energy.
c)
chemical energy is converted to electrical and heat energy.
d)
chemical energy is converted to heat energy only.
8.
A student drops a basketball through a window on the second floor of a building. He observes that it bounces back to a height lower than the window. Why does this happen?
a)
Energy is conserved as some energy is converted into sound and heat through air resistance and friction with the ground.
b)
Energy is conserved only when there is no air resistance.
c)
Energy is not conserved because some energy is converted into sound.
d)
Energy is not conserved because of friction with the ground.
9.
A cup of hot coffee was left on a table in an air-conditioned room. It became cool after some time. Which of the following explains what happened?
a)
Cold air from the surroundings cooled the cup and coffee.
b)
Cold air from the surroundings was transferred into the coffee.
c)
Thermal energy moved from the hot coffee to the surroundings.
d)
Thermal energy moved from the surroundings into the hot coffee.
10.
Waves transfer ________________________.
a)
both matter and energy
b)
energy only
c)
matter only
d)
neither matter nor energy
11.
What is the frequency of the wave shown ?
a)
10 Hz
b)
20 Hz
c)
50 Hz
d)
100 Hz
12.
A boat is parked stationary on the sea surface as shown. Which direction will the boat move when a water wave passes through?
a)
Moves left
b)
Moves left and right
c)
Moves up and down
d)
Moves right
13.
What is the name of the electromagnetic wave that can be seen?
a)
gamma rays
b)
microwaves
c)
x-rays
d)
visible light
14.
Which one of the following devices does not use any waves from the Electromagnetic wave spectrum?
a)
Air-conditioner
b)
Optical fibres
c)
Remote control
d)
X-ray machine
15.
The frequency of a wave is 20 Hz. How many complete waves will be produced in 10 s?
a)
0.5
b)
2
c)
30
d)
200
100 %
