Form 2 Science, Electricity And Magnetism Solution

Q.1.

What type of energy is stored in an object due to its high position?

82%
Gravitational potential energy
6%
Elastic potential energy
12%
Kinetic energy
0%
Electrical energy

Q.2.

What type of energy is stored in an object that is compressed, stretched or bent?

0%
Gravitational potential energy
82%
Elastic potential energy
9%
Kinetic energy
9%
Electrical energy

Q.3.

What is produced on a balloon after it is rubbed with a woolen cloth?

92%
Electrostatic charges
0%
Electric current
8%
Voltage
0%
Resistance

Q.4.

What happens to a plastic ruler after it is rubbed with a woollen cloth?

91%
Transfer of electrons
9%
Transfer of protons
0%
Transfer of neutrons
0%
Chemical reaction

Q.5.

What instrument can be used to detect electrostatic charges?

100%
Electroscope
0%
Telescope
0%
Microscope
0%
Periscope

Q.6.

Which of the following statements about charges is TRUE?

67%
Same charges repel while opposite charges attract
11%
Same charges repel and opposite charges also repel
0%
Same charges attract and opposite charges also attract
22%
Same charges attract while opposite charges repel

Q.7.

What is the result of the force of attraction that exists between the positive charges on the ground and the negative charges in the clouds?

67%
Lightning
22%
Thunder
0%
Whirlpool
11%
Cyclone

Q.8.

What can be used to produce electric charges at high voltages?

78%
Van de Graaff generator
0%
Resistor
0%
Ammeter
22%
Voltmeter

Q.9.

What type of charges are usually produced on the dome of the Van de Graaff generator?

38%
Positive
25%
Negative
25%
Neutral
12%
It's impossible to detect

Q.10.

What is an ammeter used to measure?

75%
Electric current
12%
Voltage
12%
Resistance
0%
Magnetism

Q.11.

What is a voltmeter used to measure?

25%
Electric current
62%
Voltage
12%
Resistance
0%
Magnetism

Q.12.

What is the unit for electric current?

88%
Ampere
0%
Volt
12%
Ohm
0%
Tesla

Q.13.

What is the unit for voltage?

12%
Ampere
88%
Volt
0%
Ohm
0%
Tesla

Q.14.

What is the unit for resistance?

25%
Ampere
0%
Volt
75%
Ohm
0%
Tesla

Q.15.

Which factor does NOT affect the resistance in an electric circuit?

62%
Surface area of the conductor
12%
Length of the conductor
0%
Type of conductor
25%
Diameter of the conductor

Q.16.

What is the direction of a magnetic field?

75%
From the north pole to the south pole
25%
From the south pole to the north pole
0%
From the east pole to the west pole
0%
From the west pole to the east pole

Q.17.

Which of the following statements about magnets is TRUE?

88%
Same poles repel while opposite poles attract
0%
Same poles repel and opposite poles also repel
0%
Same poles attract and opposite poles also attract
12%
Same poles attract while opposite poles repel

Q.18.

What direction will a compass point to when hung freely?

88%
North
12%
South
0%
East
0%
West

Q.19.

What rule is used for determining the direction of the magnetic field based on the direction of the current in a straight conductor?

62%
Right-hand grip rule
25%
Left-hand grip rule
12%
Fleming's left-hand rule
0%
Fleming's right-hand rule

Q.20.

Which of the following devices does not used an electromagnet?

38%
Refridgerators
25%
Cranes
12%
Electric bells
25%
Credit cards

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