Frequency is measured in

• A. meter per second
• B. seconds
• C. hertz
• D. farad

The diagram below illustrates a uniform metre rule which is balanced on a pivot by some masses. Calculate the value of M

• A. 500.0g
• B. 400.0g
• C. 44.4g
• D. 25.0g

A wire of length 100.0m at 30^o has linear expansive of 2x10^-5K^-1 Calculate the length of the wire at a temperature of - 10^oC

• A. 100.08m
• B. 100.04m
• C. 99.96m
• D. 99.92m

Which of the following factors does not affect the e.m.f of a primary cell? Its

• A. size
• B. internal resistance
• C. operating temperature
• D. duration of usage

A saturated vapour pressure of a liquid increases when the

• A. Temperature of a liquid increases
• B. Volume of the liquid increases
• C. Volume of the liquid decreases
• D. Temperature of the liquid decreases

A Spiral spring of natural length 20.00cm has a scale hanging freely in its lower end. When an object ass 40 g is placed in the pan. its length becomes cm. When the object is replaced with another of 60g, the length becomes 22.05cm. Calculate the mass scale pan. [g = 10 ms\(^{-2}\)]

Calculate the heat energy required to change 0.1kg of ice at 0^oC to water boiling at 100^oC. (Specific heat capacity of water = 4200 J kg^-1K^-1) (Specific latent heat of fusion of ice = 336,000 J kg^-1)

• A. 75,600J
• B. 336,000J
• C. 340,200J
• D. 378,000J.

Which of the following statements about matter is not correct?

• A. Molecules of solids move more freely than molecules of liquids and gases
• B. Molecules of solids are more closely packed than those of liquids
• C. Energy is required to break the intermolecular forces of attraction between molecules
• D. Molecules of liquids move about within the liquid and they are in constant motion

Ice cubes are added to a glass of warm water. The glass and water are cooled by

• A. conduction only
• B. convection only
• C. conduction and convection
• D. convection and radiation

Calculate the inductance L of the coil in the circuit shown below.

• A. 14.4H
• B. 3.8H
• C. 0.6H
• D. 0.4H