Physics Past Questions and Answers

A football is kicked at an angle of 45° to the horizontal over a defense line up with a velocity of 15\(ms^{-1}\). Calculate the magnitudeof horizontal velocity of the ball at its highest point [Neglect friction, g = 10\(ms^{-2}\)].

A 0.0\(ms^{-1}\)
B 5.6\(ms^{-1}\)
C 10.6\(ms^{-1}\)
D 15.0\(ms^{-1}\)

Question 1842:

The ice point on the absolute scale of temperature is

A 0K
B 32K
C 100K
D 273K

Question 1843:

Which of the following factors does not increase the rate of evaporation of water in a lake?

A Increase in the pressure of the atmosphere
B Rise in temperature
C Increase in the surface area of the lake
D Increase in the speed of the wind

Question 1844:

The bob of a simple pendulum takes 8.0s to complete 10 oscillations. Determine the frequency of oscillation of the bob.

A 0.125Hz
B 1.25Hz
C 7.50Hz
D 8.00Hz

Question 1845:

The diagram above illustrates the mercury-in-glass thermometer used for determining the temperature of a room. Use the data on it to determine the room temperature.

A 3.3Â°C
B 7.0°C
C 13Â°C
D 30.0Â°C