Newtonian Mechanics
Thermal Physics
Wave Physics
Electricity
Electromagnetism
100

This is the formula to find resultant force.

What is F = ma?

100

An experiment that shows air particles moving randomly at high speed.

What is Brownian Motion?

100

The time taken for one complete cycle.

What is period?

100
The voltage over each branch is the same in this kind of circuit. 

What is parallel circuit?

100

This sign is used to find induced force.

What is Fleming's Left Hand rule?

200

An object which is moving at constant velocity doesn't have this.

What is resultant force or resultant acceleration?

200

Non-metal doesn't have this and thus it is why they are bad conductors of heat.

What is sea of free electrons?

200

This type of wave has particles moving parallel to its direction of propagation.

What is longitudinal wave?

200

It can be calculated using three different ways to show the rate of energy expenditure. 

What is power?
200

When one wire has current flowing in the opposite direction of another neighbouring wire, this happens ...  

What is attraction?

300

Energy can be converted but not created.

Energy can be changed but not destroyed.

As long as we are talking about an enclosed system. 

What is principle of conservation of energy?

300

I am melting and gaining thermal energy but my temperature is not increasing, but this energy is increasing though ...

What is internal potential energy?

300

Some of my brethren cause mutations in your biological cell. Use us with care or this process will kill you.

What is ionizing radiation?

300

It determines the rate of charge flow in the circuit. Careful though. You don't want me flowing through you.

What is current?

300

Iron and Neodymium are some of my buddies. We work well with solenoid and circuit breakers.

What are soft magnetic materials?

400

Ouch that hurts! Increasing the surface area would help reduce the pain.

What is pressure?

400

What goes up will come down ... This is the cycle of heat transfer.

What is convection current?

400

This is used in TV remote controller and also used extensively in the past 2 years and counting.

What is Infrared radiation?

400
Sliding will change the current in the circuit if the e.m.f. remains the same.

What is a rheostat or variable resistor?

400
With this thing, I can continue rotating in one direction even when the magnetic field remains in the same direction.

What is split-ring commutator?

500

You might have taken a longer but gentler route to climb up the hill. I still gain the same amount of this energy by taking the shorter but steeper route up the hill.

What is gravitational potential energy?

500

It depends on the surface area, the temperature of the surface and the texture. Wait ... I think I missed out one more factor ... 

What is radiation?

500

It determines the speed of light in the medium in question. I can find the critical angle too from this.

What is the refractive index?

500

In order to find the overall current in any circuit, given e.m.f, we need to know this. 

What is overall effective resistance?

500

A beam of electrons would deflect this way when it travels towards the right, in the presence of magnetic field that goes into the plane of the table.

What is downwards?