FORM TWO PHYSICS NECTA MULTIPLE CHOICE 2006

(i)The branch of science in which the relationship between matter and energy is studied is called:

1.  Biology
2. Chemistry
3. Physics
4. Agricultural Science

The fundamental quantities of measurements are:

1. Length, Acceleration and Time
2.  Length, Mass and Time
3. Speed, Velocity and Acceleration
4.  Length, Velocity and Time

(iii)          When fire hazard from an electric fault erupts in a house:

1.   Cut off all connecting wires.
2. Switch off the main switch.
3. . Break the main switch.
4. Switch off the switch sockets.

(iv)          The process whereby materials recover the original length after removing the load or force is known as:

1. Plasticity
2.  Deformation
3.  Elasticity
4. Elastic limit

(v)            The Archimedes Principle states that:

1.  The upthrust experienced by a body when partially or totally immersed in a fluid is equal to the weight of the fluid displaced.
2.  Upthrust is equal to apparent loss in weight when a body is partially or totally immersed in a fluid.
3. When a body is totally or partially immersed in a fluid it displaces its own weight of the fluid in which it is immersed.
4.  When a body is partially or totally immersed in a fluid, it  experiences a big loss in weight.

The SI unit of temperature is:

2.  Second
3.  Kelvin
4. Fahrenheit

(vii)         Pond skaters and mosquitoes are able to walk on the surface of water because of the:

1. Upthrust
2. Plasticity on the surface
3. Surface tension of water
4. Water mass

(viii)        A suspended bar magnet comes to rest pointing approximately in the:

1.   North-East direction
2. North-South direction
3. North-West direction
4.  Up-down direction

(ix)           A force exerted by a pressure of 20N/m2 acting over an area of 2m2 is:

1.  A. ION
2.  18N
3. 22N
4.  40N

(x)            What is the acceleration of a body of mass 30 kg when a constant force of 150N is applied on it?

1. 50 m/s2
2. 0.5 m/s2
3.  5.0 m/s2
4.  0.05 m/s2

(xi)           Increase in pressure raises the boiling point of a liquid. This principle is used in:

1. Refrigerator and vacuum pump.
2.  Pressure cooker and oven.
3.  Pressure cooker and steam engine.
4.  Refrigerator and pressure cooker.

(xii)          If the system has a Velocity Ratio of 5, and the Efficiency of the system is 80%, what is the Mechanical Advantage of the pulley system? B. 400   c. 40

(xiii)        The point at which all the weight of a body acts is called:

1.  Gravitational force
2. Upthrust
3. Centre of gravity
4.  Centre of mass

(xiv)        The movement of solvent-molecules from high to low concentration through a semi-permeable membrane is called:

1.  Fusion
2. Osmosis
3.  Diffusion
4. Pressure

(xv) Potential energy and Kinetic energy are similar because:

1.   Both produce heat.
2. Both are measured in watt.
3.  One is a substitute of the other
4. Both are forms of mechanical energy.

(xvi) The process of removing magnetism from a material is known as

1. Magnetic field
2.  Magnetization
3. Demagnetization
4.  Polarization

(Wii) A potential difference of 24 volts is applied across a resistor of resistance 12 ohms. The current flowing in the circuit is:

1. A. 0.5 Amps
2. 1.5 Amps
3. 2.0 Amps
4.  2.5 Amps

(wiii) The heat energy from the sun reaches the earth by:

1.  Conduction
2. Convection
3.  Transparency

(xix)   Water of mass 3kg is heated from 260Cto 960C. What is the amount of heat supplied to the water?

1.  A. 21kJ
2. . 882kJ
3.   38kJ
4. D. 400kJ

(xx)     The image formed by a plane mirror is:

1.  Magnified, vertical, laterally inverted.
2.  The same size as object, magnified, real.
3. Virtual, laterally inverted, same size as object.
4. Diminished, real, laterally inverted.

(xi)           Increase in pressure raises the boiling point of a liquid. This principle is used in:

1. Refrigerator and vacuum pump.
2.  Pressure cooker and oven.
3.  Pressure cooker and steam engine.
4.  Refrigerator and pressure cooker.

(xii)          If the system has a Velocity Ratio of 5, and the Efficiency of the system is 80%, what is the Mechanical Advantage of the pulley system? B. 400   c. 40

(xiii)        The point at which all the weight of a body acts is called:

1.  Gravitational force
2. Upthrust
3. Centre of gravity
4.  Centre of mass

(xiv)        The movement of solvent-molecules from high to low concentration through a semi-permeable membrane is called:

1.  Fusion
2. Osmosis
3.  Diffusion
4. Pressure

(xv) Potential energy and Kinetic energy are similar because:

1.   Both produce heat.
2. Both are measured in watt.
3.  One is a substitute of the other
4. Both are forms of mechanical energy.

(xvi) The process of removing magnetism from a material is known as

1. Magnetic field
2.  Magnetization
3. Demagnetization
4.  Polarization

(Wii) A potential difference of 24 volts is applied across a resistor of resistance 12 ohms. The current flowing in the circuit is:

1. A. 0.5 Amps
2. 1.5 Amps
3. 2.0 Amps
4.  2.5 Amps

(wiii) The heat energy from the sun reaches the earth by:

1.  Conduction
2. Convection
3.  Transparency

(xix)   Water of mass 3kg is heated from 260Cto 960C. What is the amount of heat supplied to the water?

1.  A. 21kJ
2. . 882kJ
3.   38kJ
4. D. 400kJ