Nuclear fission is preferred to nuclear fusion in the generation of energy because?

• A. very high temperature are required for fusion
• B. the raw material of fusion are not easily obtained
• C. energy obtained from fusion is relatively smaller
• D. the by product of fusion are very dangerous

Which of the following have the greatest penetrating power?

• A. Beta rays
• B. Alpha rays
• C. Gamma rays
• D. Electrons

A charge of 2.0 x 10\(^{-5}\) C experiences a force of 80N in a uniform electric field. Calculate the magnitude of the electric field intensity

• A. 8.0 x 10⁶ NC^-1
• B. 4.0 x 10⁶ NC^-1
• C. 4.0 x 10⁴ NC^-1
• D. 2.0 x 10⁴ NC^-1

which of the following statements about simple harmonic motion is correct? The

• A. total mechanical energy is always conserved
• B. linear acceleration is directed to any variable point
• C. linear acceleration varies inversely with displacement
• D. period of oscillation varies linearly as acceleration due to gravity

A car takes off from rest and covers a distance of 80m on a straight road in 10s. Calculate the magnitude of its acceleration

• A. 1.25ms^-2
• B. 1.60ms^-2
• C. 4.00ms^-2
• D. 8.00ms^-2

An electric generator rated 12 kW, 2 kV distribute power through a cable of resistance 20Ω. Calculate the power loss in the cable.

• A. 120 w
• B. 360 w
• C. 720 w
• D. 2400 w

Thermal equilibrium between two object exist when

• A. the temperature of both objects are equal
• B. the quantity of heat of both objects is the same
• C. the heat capacities of both objects are the same
• D. one object losses heat continuously to the other

A body of mass 2kg is suspended from the ceiling of a lift with a light inextensible string. lf the lift moves upwards with acceleration of 2ms^-2, calculate the magnitude of the tension in the string (g = 1Oms^-2)

• A. 24N
• B. 20N
• C. 16N
• D. 4N

The internal resistance of each of the cells E1 and E2 Shown in the figure below is 2 Ohm. Calculate the total current in the circuit

• A. 0.80A
• B. 0.50A
• C. 0.40A
• D. 0.004A

A body of mass 2 kg is released from a point 100 m above the ground. Calculate its kinetic energy 80m from the point of release.

• A. 1600 J
• B. 900 J
• C. 600 J
• D. 200 J