Question

QUESTION 19 An electric bulb with 55 Ohms resistance is connected across a voltage source of 110 Volts. What is the current flowing through the bulb when it is switched on? (Use Ohm's law formula) 1. 2 Amps 2. 55 Amps 3. 110 Amps 4. There won't be any electric current QUESTION 20 The shock that you feel when you touch an object once in a while is due to: 1. magnetism 2. static electricity 3. dynamic electricity 4. it's all in my mind, there is no shock! QUESTION 21 Electric power goes down while traveling long distance (remember the power supply to all our homes is located in a different city, the electric power is sent via thick cables), to avoid this we use: 1. amplifiers 2. intermediate generators 3. smaller cables 4. transformers QUESTION 22 The difference between direct and alternating current is: 1. Direct current is unidirectional, Alternating current is bidirectional 2. DC is less powerful than AC 3. DC can travel small distances whereas AC can travel longer distances 4. All of the above QUESTION 23 Alpha, beta, and gamma particles are a result of: 1. radioactivity 2. electricity 3. magnetism 4. none of the above QUESTION 24 Between any two equilibrium states, the change in internal energy is equal to the difference of the heat transfer into the system and work done by the system. i.e., Change in Internal Energy = Heat Transfer - Work done 1. First Law of Thermodynamics 2. Second Law of Thermodynamics 3. Third Law of Thermodynamics 4. Fourth Law of Thermodynamics QUESTION 25 Type of magnet in which the magnetic field is produced by the flow of an electric current. The magnetic field disappears when the current ceases. 1. electric generator 2. electric motor 3. electromagnet 4. none of the above QUESTION 26 Polarization is a property of: 1. Sound waves 2. Electric Waves 3. Magnetic Waves 4. Light Waves QUESTION 27 Increasing the heat of an object: 1. Shows an increase in temperature 2. Might change the state of the matter 3. Increases the kinetic energy at the molecular level 4. All of the above QUESTION 28 When you throw a ball upwards, when it reaches its peak, its velocity will be zero. True False QUESTION 29 Newton's Second Law: Acceleration of an object is INVERSELY proportional to the force applied to it. True False QUESTION 30 Nuclear physics deals with the nucleus of an atom. True False

QUESTION 19
An electric bulb with 55 Ohms resistance is connected across a voltage source of 110 Volts. What is the current flowing through the bulb when it is switched on? (Use Ohm's law formula)
1. 2 Amps
2. 55 Amps
3. 110 Amps
4. There won't be any electric current

QUESTION 20
The shock that you feel when you touch an object once in a while is due to:
1. magnetism
2. static electricity
3. dynamic electricity
4. it's all in my mind, there is no shock!

QUESTION 21
Electric power goes down while traveling long distance (remember the power supply to all our homes is located in a different city, the electric power is sent via thick cables), to avoid this we use:
1. amplifiers
2. intermediate generators
3. smaller cables
4. transformers

QUESTION 22
The difference between direct and alternating current is:
1. Direct current is unidirectional, Alternating current is bidirectional
2. DC is less powerful than AC
3. DC can travel small distances whereas AC can travel longer distances
4. All of the above

QUESTION 23
Alpha, beta, and gamma particles are a result of:
1. radioactivity
2. electricity
3. magnetism
4. none of the above

QUESTION 24
Between any two equilibrium states, the change in internal energy is equal to the difference of the heat transfer into the system and work done by the system. i.e., Change in Internal Energy = Heat Transfer - Work done
1. First Law of Thermodynamics
2. Second Law of Thermodynamics
3. Third Law of Thermodynamics
4. Fourth Law of Thermodynamics

QUESTION 25
Type of magnet in which the magnetic field is produced by the flow of an electric current. The magnetic field disappears when the current ceases.
1. electric generator
2. electric motor
3. electromagnet
4. none of the above

QUESTION 26
Polarization is a property of:
1. Sound waves
2. Electric Waves
3. Magnetic Waves
4. Light Waves

QUESTION 27
Increasing the heat of an object:
1. Shows an increase in temperature
2. Might change the state of the matter
3. Increases the kinetic energy at the molecular level
4. All of the above

QUESTION 28
When you throw a ball upwards, when it reaches its peak, its velocity will be zero.
True
False

QUESTION 29
Newton's Second Law: Acceleration of an object is INVERSELY proportional to the force applied to it.
True
False

QUESTION 30
Nuclear physics deals with the nucleus of an atom.
True
False

Added by Ryan D.