top of page
.png)
Evan Toh
Aug 312 min read
Simple electric circuit set up - with reistance wire on ruler
This simple circuit involves a resistance wire on the meter rule and the use of jockey tapping at different length L on the resistance...
1 view0 comments
Evan Toh
Aug 311 min read
How to connect the variable resistor (rheostat)
The variable resistor (rheostat) is a device to control the size of the current by adjusting the resistance on the variable resistor ....
1 view0 comments
Evan Toh
Aug 311 min read
Setting up the electrical circuit and Finding unknown resistor R
Refer to the video below for the setting up of the apparatus. Why do you need a variable resistor (rheostat)? Without the variable...
1 view0 comments
Evan Toh
Aug 310 min read
1 view0 comments
Evan Toh
Jan 311 min read
PP2017Q11 Using P=I^2R and P=V^2/R to explain which has higher power
Resistors may be connected in series or parallel. When asked which resistor has higher power (hence higher energy), in general we will...
1 view0 comments
Evan Toh
Jan 11 min read
Understanding cathode-ray oscilloscope CRO
Refer to the notes below together with the video to learn more about the CRO Videos
5 views0 comments
Evan Toh
Jan 10 min read
8 views0 comments
Evan Toh
Jan 11 min read
Graphs of Transverse Wave
Transverse waves are waves in which travel perpendicular to the direction of vibration of particles.
23 views0 comments
Evan Toh
Jan 11 min read
Ticker Tape Timer
Ticker tape timer is a device which punches dots on a tape at specific time interval. The tape can be attached to a moving object. With...
12 views0 comments
Evan Toh
Jan 11 min read
Bowling ball and feather in a vacuum room – which drops faster?
In a vacuum room, where is no air resistance, the bowling ball will have the same acceleration as the feather, which is 10 m/s2 on earth....
2 views0 comments
Evan Toh
Jan 11 min read
Common SI prefixes
Physical Quantity is a quantity that can be measured and it consists of a numerical magnitude (size) and a unit . (e.g. 5m where 5 is...
5 views0 comments
Evan Toh
Jan 11 min read
Units conversion involving prefixes
Prefixes are used to simplify the writing of very big or very small numbers. For instance, instead of having to write 12 500 000 m every...
25 views0 comments
bottom of page