Q1 : Quantum

Q2: Quantum

Q3: G-field

Q4: Ice melting

Q5: Kinematics

Q6: Kinematics (v-t graph)

Q7: Kinematics (a-t graph)

Q8: Circular motion

Q9: Dynamics (bullet-block collision)

Q10: Double-slit (thin glass)

Q11: EM (force on irregular frame)

Q12: Upthrust (ball tied with string / rod)

Q13: WEP (water flowing from one tube to another)

Q14: Current of electricity (rod and cylinder)

Q15: WEP (cg of cube)

Q16 : DC (potential)

Q17: DC (mercury)

Q18: Circular motion (vertical motion with graphs)

Q19: Oscillations (resonance)

Q20: Superposition (Double slits)

Q21: Superposition (Stationary waves)

Q22: Work, Energy, Power (worms)

## Discussion 1:

Quantum

## Discussion 2:

Quantum

## Discussion 3:

G-field

## Discussion 4:

Forces (upthrust and ice melting questions)

## Discussion 5:

Kinematics

## Discussion 6:

Kinematics

## Discussion 7:

Kinematics

## Discussion 8:

Circular motion

## Discussion 9:

Dynamics

## Discussion 10:

Superposition

**Discussion 11:**

EM

EM

## Discussion Question 12 :

Forces (upthrust)

## Discussion Question 13 :

WEP

## Discussion Question 14 :

Current of Electricity

## Discussion Question 15 :

WEP

## Discussion Question 16 :

DC

****Discussion Question 17 :

DC

## Discussion Question 18 :

Circular Motion (vertical circle with graphs)

## Discussion Question 19 :

Resonance

P being heavier, when it is set into oscillation, the rubber bands will pull B along and force it to oscillate as well. Hence P is the driver and B is the driven system.

When the card is rotated such that its surface is perpendicular to the direction of oscillation, the drag due to air resistance will give rise to damping of B.

When the magnets are pushed up, the c.g. of the oscillating system is further from the pivot, hence period increases (freq drops) - similar to having a longer length for a simple pendulum.

Having more rubber bands allow the transfer of energy from driver to the driven system to be more effective, hence greater amplitude of oscillations.

When the card is rotated such that its surface is perpendicular to the direction of oscillation, the drag due to air resistance will give rise to damping of B.

When the magnets are pushed up, the c.g. of the oscillating system is further from the pivot, hence period increases (freq drops) - similar to having a longer length for a simple pendulum.

Having more rubber bands allow the transfer of energy from driver to the driven system to be more effective, hence greater amplitude of oscillations.