Practical Exams (1 Viewer)

[velox]

Hi, i have to do these three pracs, just wondering if others have done these and have any pointers.

1. Perform a first hand investigation and gather information to constuct diagrams showing direction of travel of light rays and wavefronts

2. Perform first hand investigations and gather data and analyse the change in momentum during collisions.

3. Gather information to graph the angle of incidence and refraction for light entering a medium change showing the relationship between these angles.

I think im ok for the last one, but i dont have much idea about the first 2. Any help would be greatly appreciated

 

[t-i-m-m-y]

i could dig up my year 11 prac book but nah.

1. u use the tray of water with some wave generator thats what we did. i think it was week4 or 5 of year 11 lol

2. mometum, we used the plastic cars designed for this. they run on the track, and u use data loggers and timing gates etc to calculate/meausre velocity. alternatively u can use ticker tape (is that what it called)? and crash two of the cars together on the track. i wish i still had the video. our one flew off the table (oops) and these thing aint cheap

 

[George W. Bush]

Originally posted by wrx

2. Perform first hand investigations and gather data and analyse the change in momentum during collisions.

Get your teacher's car, and some solid object. Work out the mass of your teacher's car (don't forget the mass of driver), and get the car going at a good constant velocity. Weigh the object it's running into, and measure the subsequent velocities of both objects.

 

[velox]

lo

Originally posted by George W. Bush
Get your teacher's car, and some solid object. Work out the mass of your teacher's car (don't forget the mass of driver), and get the car going at a good constant velocity. Weigh the object it's running into, and measure the subsequent velocities of both objects.

lol , for the first one i think we will be using ray boxes