A Levels Physics Problems MCQ (Multiple Choice Questions) PDF Download

If a student drops a stone from a cliff of height 30 m and the time it takes to reach the ground is 2.6 s, then the acceleration due to gravity is

1. 9 ms^-2
2. 10 ms^-2
3. 4 ms^-2
4. 8.8 ms^-2

A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by the atmosphere on the surface of water is

1. 20 kN
2. 50 kN
3. 100 kN
4. 200 kN

A train with a whistle that emits a note of frequency 800 Hz is approaching an observer at speed of 60 ms^-1, the frequency of note heard by observer is

1. 978 Hz
2. 980 Hz
3. 950 Hz
4. 900 Hz

If the two quantizes are inversely proportional then graph between y and 1/x gives

1. straight line cutting the axis
2. straight line through origin
3. a parabolic curve
4. a hyperbolic curve

Number of conduction electrons per unit volume is

1. electron number
2. number density
3. proton number
4. neutron number