Definitions & Units
What has the units of kg.m.s-2
Force
What is the charge of a carbon nucleus?
+6
When light passes from one medium to another medium, which one of the following does not change?
(A) Frequency
(B) Wavelength
(C) Velocity
(D) Intensity
(A) Frequency
What's the biggest animal in the world?
The blue whale
Who wrote A Brief History of Time?
Stephen Hawking
What are the units of work done in terms of fundamental units?
kgms-3
Which frozen gas forms dry ice?
Carbon Dioxide
Which one of the following phenomena shows particle nature of light?
Photo electric effect
Name one landlocked country in Europe
Andorra, Austria, Belarus, Czech Republic, Hungary, Liechtenstein, Luxembourg, Macedonia, Moldova, San Marino, Serbia, Slovakia, Switzerland, and Vatican City.
The unit for electrical power is...
The Watt
The only fundamental unit with a prefix
Kilogramme
If it is 25 degrees Celsuis, what is temperature on the Kelvin Scale?
298K
What does a manometer measure?
Pressure
How many bones does a shark have?
None (a shark’s skeleton is made entirely of cartilage)
A 10kg object moving at 2m/s experiences a force of 6N for 6s. What is the new momentum of the object?
56 kgms-1
What are the units for the rate of change of momentum?
kg.m.s-2
If you get scurvy, what vitamin are you deficient in?
Vitamin C
What is the speed of light?
3 x 108 ms-1
What is the name of the layer of the atmosphere closest to us?
The troposphere.
How many elements are there in the periodic table?
118
The rate of change of acceleration....or an idiot! (in U.S English!)
Jerk
Which Polish scientist discovered Polonium?
Marie Curie
What is the name of the process which allows fibre optic cables to work?
Total Internal Reflection
How many sides does a heptadecagon have?
17
When an object of weight mg is stationary on a slope. What is the force of friction equal to?
a) mg
b) mg sin 0
c) mg cos 0
b) mg sin 0