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WorksheetsFormative Test 1 (Physics)
Total questions: 20
Worksheet time: 3hrs 51mins
Name
Class
Date
1.
The length of mercury column in an uncalibrated mercury thermometer is 3 cm when its bulb is immersed in melting ice. When the thermometer bulb is placed in steam, the length of mercury column increases to 28 cm. What would the temperature be if the length of mercury column is 23 cm?
a)
80oC
b)
125oC
c)
0.8oC
d)
1.25oC
2.
Diagram above shows two Labu Sayong water container used by local in Kuala Kangsar, Perak. It is found that water will remain cold even though the temperature surrounding is pretty high. Which statement is true about the phenomenon?
a)
Labu Sayong is made up of clay that has low specific heat capacity.
b)
Labu Sayong is made up of clay that has high specific heat capacity.
c)
Labu Sayong is low in density
d)
Labu Sayong is good heat conductor
3.
Diagram above shows the heating curve of naphthalene. Why the temperature remains constant along BC and DE?
a)
Heat energy is used to increase the kinetic energy of molecules.
b)
Heat energy is used to break the inter molecular forces between molecules.
c)
Heat energy is lost to surrounding.
d)
Heat energy is used to build up the inter molecular forces between molecules.
4.
An electric heater with power 1.5 kW is used to boil 4 kg of water. Given that the initial temperature of water is xoC, find x if the time needed for water to boil is 10 minutes. (Specific heat capacity of water is 4200 J kg-1 oC-1)
a)
53.6oC
b)
46.4oC
c)
32.4oC
d)
65.4oC
5.
Two cups contain coffee at 90oC and milk at 20oC respectively. The specific heat capacity of milk is 1.5 times the specific heat capacity of coffee. The mass of coffee is twice the mass of milk. If the drinks are mixed together, what is the final temperature of the mixture?
a)
61oC
b)
60oC
c)
62oC
d)
63oC
6.
A steel block of mass 20 kg is dropped vertically from a height of 50 m. What is the increase in the temperature of the steel assuming all the energy is converted into heat energy?
(Specific heat capacity of steel block = 466 J kg-1 oC-1)
(Specific heat capacity of steel block = 466 J kg-1 oC-1)
a)
2.07oC
b)
1.07oC
c)
3.07oC
d)
4.07oC
7.
The balloon with initial volume 15 cm3 when immersed in ice water at 3oC expand to a volume V when put into a hot water at temperature 90oC. Find V
a)
450 cm3
b)
45 cm3
c)
19.7 cm3
d)
197 cm3
8.
An empty-sealed Milo can could explode if put on fire for a certain period of time. Which gas law is associated to this phenomenon?
a)
Charles' Law
b)
Boyle's Law
c)
Pressure Law
d)
Snell's Law
9.
The air pressure in a motorcycle tyre is 200 kPa at a temperature of 37oC. What is air pressure in the tyre at a temperature of 57oC?
a)
212.9 kPa
b)
308.1 kPa
c)
252.5 kPa
d)
312.4 kPa
10.
Which phenomenon shows the application of latent heat of vaporization in everyday life?
a)
Steaming chicken
b)
Cooling a car engine with water
c)
Cooling down a drink with ice
d)
Freezing prawns in ice cubes
11.
The electric current supplied by a battery in a digital watch is 3.0 x 10-5 A. What is the quantity of charge that flow in 2 hours ?
a)
0.226 C
b)
0.216 C
c)
6.0 x 10-5 C
d)
3.6 x 10-3 C
12.
It is observed that the candle flame is split into two different portions when put in an electric field as shown in the diagram above. Which of the following is true about the above observation?
a)
The split is not even because the electric field is weak.
b)
The split is not even because the charge produced is unbalanced.
c)
The split is not even because the positive charge is heavier and larger in size that they drag most of the flame along.
d)
The split is not even because negative charge is greater in mass compared to positive charge.
13.
Diagram above shows a fan speed regulator. Which physical quantity varies when the knob is turned?
a)
Power
b)
Voltage
c)
Resistance
d)
Electric current
14.
Fill up the blank space:
Certain metals will become ____________ when their resistance become zero at temperature near absolute zero.
Certain metals will become ____________ when their resistance become zero at temperature near absolute zero.
a)
Ohmic conductor
b)
Superconductor
c)
Non-Ohmic conductor
d)
Semiconductor
15.
Diagram above shows an electrical circuit. The voltmeter reading is 8 V. What is the current flow through resistor R?
a)
2.0 A
b)
3.0 A
c)
4.0 A
d)
5.0 A
16.
What is the effective resistance of the above circuit?
a)
14.67 Ω
b)
15.67 Ω
c)
13 Ω
d)
6.67 Ω
17.
Diagram above shows an electric circuit. The reading of the ammeter is 0.2 A and the reading of the voltmeter is 2.8 V.
Calculate the electrical energy released by the bulb in 2 minutes.
Calculate the electrical energy released by the bulb in 2 minutes.
a)
0.56 J
b)
1.12 J
c)
28.00 J
d)
67.20 J
18.
The graph above shows the result of an experiment to determine the e.m.f and internal resistance of a cell. From the graph, what is the e.m.f of the cell?
a)
3.0 V
b)
1.7 V
c)
0.74 A
d)
2.0 V
19.
What is electromotive force?
a)
The work done by a charge in a circuit.
b)
The work done by one coulomb of charge in a circuit
c)
The work done by a source of energy in driving a charge around a complete circuit.
d)
The work done by a source of energy in driving one coulomb of charge in a complete circuit.
20.
What is the meaning of power rated "60 W, 240 V" ?
a)
The rate of change of power is 60 W
b)
60 J of energy is consumed in 1 s when connected to 240 V power supply.
c)
60 W of power is consumed in 1 s when connected to 240 V power supply.
d)
The rate of change of energy is 60 W
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