Wednesday, October 21, 2009

Tuesday, October 20, 2009

SPM and STPM Papers

STPM Physics Papers : Click Here
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SPM PHYSICS Papers
MRSM Physics Paper 1 2009
MRSM Physics Paper 2 2009
MRSM Physics Paper 3 2009

Kedah Trial Physics Paper 1 2009
Kedah Trial Physics Paper 2 2009
Kedah Trial Physics Paper 3 2009
Kedah Trial Physics Scheme 2009
Kedah Trial Physics P2 P3 Answers 2009

Kelantan Trial Physics Paper 1 2009
Kelantan Trial Physics Paper 2 2009
Kelantan Trial Physics Paper 3 2009
Kelantan Trial Physics Scheme 2009

Terengganu Trial Physics Paper 1 2009
Terengganu Trial Physics Paper 1 2009 Answer
Terengganu Trial Physics Paper 2 2009
Terengganu Trial Physics Paper 2 2009 Scheme
Terengganu Trial Physics Paper 3 2009
Terengganu Trial Physics Paper 3 2009 Scheme

Force and Time

Does the FORCE (impulsive force) acting on a car during a collision depend on the time of impact only?
The SPM Physics syllabus seems to suggest this. It does not mention the change in momentum of the car.






From Equation 1 and Equation 2, it is clear that the impulsive force depends on the change of momentum and the time of impact. In SPM Physics, it is often stated that the impulsive force is inversely proportional to the time of impact WITHOUT stating that this is only true in situations where the change of momentum remains the same.

We should take note of this when we teach about impulsive force and time of impact.

Saturday, October 17, 2009

Sharing Physics

Got inspired recently from the blog of a fellow teacher in my school. Revived my blog which was asleep for some time - to share resources for the benefit of anyone who needs some help with Physics at SPM or STPM level.